Re: Stus-List Folding/feathering Props
Hi Wally. I am interested. I have a CC 30-1 with an Atomic 4. Currently I am using a Gori 2 blade 11.5 x 8 but would consider getting a second one as a spare. If you get the right wave direction at the mouth of the Niagara River it can produce some huge standing waves. I am not sure what physics would cause the folding prop to close in air if it was rotating, my thoughts up to now would have been that the centrifugal force would open it or keep it open. Michael Brown Windburn CC 30-1 Date: Thu, 12 Feb 2015 15:59:02 + (UTC) From: Wally Kowal wally.ko...@rogers.com To: Alan Lombard alan.lomb...@sympatico.ca, cnc-list@cnc-list.com cnc-list@cnc-list.com Subject: Re: Stus-List Folding/feathering Props Message-ID: 734680612.3871840.1423756742424.javamail.ya...@mail.yahoo.com Content-Type: text/plain; charset=utf-8 Alan, I have a two-blade Gori that I took off our 30 Mk 1 years ago that you can get at a good price.? We don't race and it folded once too often while my wife was docking. It is sized for an Atomic 4.? I have no idea where it is but I can look for it if you are interested. We had an interesting situation with it.? We were leaving NOTL Yacht Club, motoring over the Niagara River bar into a heavy north wind which created VERY tall waves, and every time the boat tipped over the top of a particularly large wave, the prop would leave the water and fold instantly.? We had to put the transmission in neutral then shift back into forward to re-open the prop. It took a few minutes of panic to figure out what was happening. Wally.Whistler IICC 30 '74 out of Penetanguishene, ON ___ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
Re: Stus-List Folding/feathering Props
Alan,
I have a two-blade Gori that I took off our 30 Mk 1 years ago that you can get
at a good price. We don't race and it folded once too often while my wife was
docking.
It is sized for an Atomic 4. I have no idea where it is but I can look for it
if you are interested.
We had an interesting situation with it. We were leaving NOTL Yacht Club,
motoring over the Niagara River bar into a heavy north wind which created VERY
tall waves, and every time the boat tipped over the top of a particularly large
wave, the prop would leave the water and fold instantly. We had to put the
transmission in neutral then shift back into forward to re-open the prop.
It took a few minutes of panic to figure out what was happening.
Wally.Whistler IICC 30 '74 out of Penetanguishene, ON
From: Alan Lombard via CnC-List cnc-list@cnc-list.com
To: cnc-list@cnc-list.com
Sent: Saturday, January 31, 2015 4:10 PM
Subject: Re: Stus-List Folding/feathering Props
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div.yiv9629423261WordSection1 {}--Hello Gary,I too have a CC 30 and am
debating either a Gori or a FlexoFold. Do you remember what size Flexofold you
have, and can you comment if it seems the right size. The recommendation
Flexofold have made to me is 2-blade 15x11R. Thanks,Alan
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Re: Stus-List Folding/feathering Props
Let me guess: When you went over the wave and the prop broke the surface, the engine started to race and kept racing after the prop went back down? That is exactly what happens with an outboard in waves (separate recent discussion on the list) and the situation is the result of cavitation. The engine races because the prop has no bite on the air, and the prop just makes bubbles and spins when it goes back into the water. When you throttle back, the water flow over the prop can reattach and stop the cavitation. Your Gori prop is geared, so it will stay with blades extended out as long as the prop shaft is spinning. It didn't fold when it came out of the water. And the advantage of the geared prop is that the blade going over the top does not close due to the effect of gravity. When traveling at higher boat speed, for example when coasting down as you approach the dock, with the engine near idle, the prop may fold slightly due to the water flow over the prop having more force on the blades than the thrust being generated by the prop spinning. But when you are going forward at idle speed with the transmission engaged at idle, the thrust on the blade will keep the blades folded out. That said, any folding prop does take a bit of getting used to. They all have idiosyncrasies compared to a fixed prop setup. Rick Brass Sent from my iPad On Feb 12, 2015, at 10:59, Wally Kowal via CnC-List cnc-list@cnc-list.com wrote: Alan, I have a two-blade Gori that I took off our 30 Mk 1 years ago that you can get at a good price. We don't race and it folded once too often while my wife was docking. It is sized for an Atomic 4. I have no idea where it is but I can look for it if you are interested. We had an interesting situation with it. We were leaving NOTL Yacht Club, motoring over the Niagara River bar into a heavy north wind which created VERY tall waves, and every time the boat tipped over the top of a particularly large wave, the prop would leave the water and fold instantly. We had to put the transmission in neutral then shift back into forward to re-open the prop. It took a few minutes of panic to figure out what was happening. Wally. Whistler II CC 30 '74 out of Penetanguishene, ON From: Alan Lombard via CnC-List cnc-list@cnc-list.com To: cnc-list@cnc-list.com Sent: Saturday, January 31, 2015 4:10 PM Subject: Re: Stus-List Folding/feathering Props Hello Gary, I too have a CC 30 and am debating either a Gori or a FlexoFold. Do you remember what size Flexofold you have, and can you comment if it seems the right size. The recommendation Flexofold have made to me is 2-blade 15x11R. Thanks, Alan ___ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com ___ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com ___ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
Re: Stus-List Folding/feathering Props
Wow! That is a serious penalty. It is three to six around here. Three if in an aperture and six if out in the open. Andthe Flex-o-fold is a geared prop so the blades open together and close together. I have not heard of any of them not opening, unless they have been sitting around so long that they are encrusted with junk/barnacles so bad that they wouldn't work even if they were fixed. I deliver boats for our museum's donation program and have run into a couple which were so dirty that the prop was just a blob of crud - no thrust. Didn't make a difference if it was folding (they weren't) or not. Gary - Original Message - From: D.J. Platt via CnC-List To: Alan Lombard ; cnc-list@cnc-list.com Sent: Monday, February 02, 2015 10:35 AM Subject: Re: Stus-List Folding/feathering Props Towed in a few boats with props not opening from our club. If you race the current penalty is 12 seconds per mile. Don't care for them myself. From: Alan Lombard via CnC-List Sent: Saturday, January 31, 2015 4:10 PM To: cnc-list@cnc-list.com Subject: Re: Stus-List Folding/feathering Props Hello Gary, I too have a CC 30 and am debating either a Gori or a FlexoFold. Do you remember what size Flexofold you have, and can you comment if it seems the right size. The recommendation Flexofold have made to me is 2-blade 15x11R. Thanks, Alan -- ___ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com -- ___ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com ___ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
Re: Stus-List Folding/feathering Props
Where I race, it is not a penalty to have a folder/featherer, the base rating assumes that you have this. A credit is granted from 3-12 seconds for a solid prop based on type of prop and mounting. Having raced with both a solid prop and a folder on the same boat, I can tell you that the penalty is well worth it. On Mon, Feb 2, 2015 at 1:37 PM, Gary Nylander via CnC-List cnc-list@cnc-list.com wrote: Wow! That is a serious penalty. It is three to six around here. Three if in an aperture and six if out in the open. Andthe Flex-o-fold is a geared prop so the blades open together and close together. I have not heard of any of them not opening, unless they have been sitting around so long that they are encrusted with junk/barnacles so bad that they wouldn't work even if they were fixed. I deliver boats for our museum's donation program and have run into a couple which were so dirty that the prop was just a blob of crud - no thrust. Didn't make a difference if it was folding (they weren't) or not. Gary - Original Message - *From:* D.J. Platt via CnC-List cnc-list@cnc-list.com *To:* Alan Lombard alan.lomb...@sympatico.ca ; cnc-list@cnc-list.com *Sent:* Monday, February 02, 2015 10:35 AM *Subject:* Re: Stus-List Folding/feathering Props Towed in a few boats with props not opening from our club. If you race the current penalty is 12 seconds per mile. Don't care for them myself. *From:* Alan Lombard via CnC-List cnc-list@cnc-list.com *Sent:* Saturday, January 31, 2015 4:10 PM *To:* cnc-list@cnc-list.com *Subject:* Re: Stus-List Folding/feathering Props Hello Gary, I too have a CC 30 and am debating either a Gori or a FlexoFold. Do you remember what size Flexofold you have, and can you comment if it seems the right size. The recommendation Flexofold have made to me is 2-blade 15x11R. Thanks, Alan -- ___ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com -- ___ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com ___ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com ___ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
Re: Stus-List Folding/feathering Props
âNot sure if this helps, but Flexofold recommended 2 blade 15 x 9 for my 26.I ended up putting on a 2 blade 13 x 11 because I don't have enough clearance between shaft and hull.Drives the boat to hull speed. sam :-)CC 26 LiquoriceGhost Lake Alberta From: Alan Lombard via CnC-ListSent: Saturday, January 31, 2015 2:10 PMTo: cnc-list@cnc-list.comReply To: Alan LombardSubject: Re: Stus-List Folding/feathering PropsHello Gary,I too have a CC 30 and am debating either a Gori or a FlexoFold. Do you remember what size Flexofold you have, and can you comment if it seems the right size. The recommendation Flexofold have made to me is 2-blade 15x11R. Thanks,Alan___ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com ___ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
Re: Stus-List Folding/feathering Props
I have the Flex. I think it is a 14.5 x 10, but I'll look tomorrow. It is a block away. I assume Yanmar 2QM15? I liked the workmanship on the Flex better than the Gori. But - years ago. Gary - Original Message - From: Alan Lombard via CnC-List To: cnc-list@cnc-list.com Sent: Saturday, January 31, 2015 4:10 PM Subject: Re: Stus-List Folding/feathering Props Hello Gary, I too have a CC 30 and am debating either a Gori or a FlexoFold. Do you remember what size Flexofold you have, and can you comment if it seems the right size. The recommendation Flexofold have made to me is 2-blade 15x11R. Thanks, Alan -- ___ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com ___ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
Re: Stus-List Folding/feathering Props
Electric motor torque is usually flat from 0 RPM to max HP RPM and drops from there. --\ \ \ Joe Della Barba -Original Message- From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Rick Brass Sent: Wednesday, October 23, 2013 3:32 PM To: cnc-list@cnc-list.com Subject: Re: Stus-List Folding/feathering Props Alex; I've just started reading this e-mail string, so forgive me if what I am about to say has already been covered. All of the prop manufacturers I've dealt with offer a way to get a recommendation for the proper prop size on their website. You provide the HP of your engine (and maybe the model and max torque information), the gear reduction (output RPM) and max engine speed, and information on the size/model/weight of the boat. They tell you which prop options would be optimal. For my 15,000 pound 38, with 36 hp diesel @3000 max RPM, and a 1.76:1 reduction Gori recommended a 16x10, Martec a 16x 10.5, and Flex-o-fold a 15x11 (each in 2-blade, I'd need to look for the 3-blade recommendations). On the face of it, 14x12 looks like a lot of prop. State of the art electric drives (using AC controllers or DC Pulse Width Modulation) used in industrial vehicles can be designed to produce max torque at under 10 RPM, but the torque produced generally declines as RPM increases. My 16x10.5 Martec is roughly equivalent to a 14x14, I'm told. It is handling about 300 ft-lbs of max torque at about 1300 prop RPM. (Torque load falls off above that point as you approach 3000 engine/1700 prop RPM). Don't know what the torque curve is for your electric drive, but I wonder if it might be unable to reach a high enough RPM before the torque load maxes out the RPM. If you've not done so already, I'd suggest that you talk to the folks at Martec (and the manufacturer of your electric drive) to get a prop recommendation. Rick Brass -Original Message- From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Alex Giannelia Sent: Monday, October 21, 2013 2:00 PM To: cnc-list@cnc-list.com Subject: Stus-List Folding/feathering Props FWIW, I had a 14x6 Martec at the end of an old WESTERBEKE 15HP diesel pushing/pulling my CC35-II in and out of the slip and only when facing a real tailwind backing out of my slip, did I have noticeable problems. So, for my new Electric motor, I dove in and bought a MARTEC 14X12 and will have to wait till spring to see if I go forward, sideways or backward. Cheers! Alex Giannelia CC 35-II 1974 to be renamed after re-launch TORONTO, Ontario ag@@airsensing.com -Original Message- From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of cnc-list-requ...@cnc-list.com Sent: October-21-13 12:00 PM To: cnc-list@cnc-list.com Subject: CnC-List Digest, Vol 93, Issue 60 Send CnC-List mailing list submissions to cnc-list@cnc-list.com To subscribe or unsubscribe via the World Wide Web, visit http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com or, via email, send a message with subject or body 'help' to cnc-list-requ...@cnc-list.com You can reach the person managing the list at cnc-list-ow...@cnc-list.com When replying, please edit your Subject line so it is more specific than Re: Contents of CnC-List digest... Today's Topics: 1. Re: Folding/feathering Props (Steve Thomas) 2. Re: Folding/feathering Props (Paul Fountain) 3. Re: Folding/feathering Props (Jerome Tauber) 4. Re: Reply - Spar Crane (djhaug...@juno.com) 5. New Head and holding tank system. (djhaug...@juno.com) 6. Re: New Head and holding tank system. (Joel Aronson) 7. Re: New Head and holding tank system. (Jim Watts) -- Message: 1 Date: Mon, 21 Oct 2013 08:18:29 -0400 From: Steve Thomas sthom...@sympatico.ca To: cnc-list@cnc-list.com Subject: Re: Stus-List Folding/feathering Props Message-ID: blu0-smtp1852402267b7df525486a5bf...@phx.gbl Content-Type: text/plain; charset=utf-8 Sam, I found a used geared Gori for my 27 and it works fine in forward and reverse. I had hoped to find a 3 blade folder of some kind to minimise vibration but when I checked the manufacturers specifications there were none available in a small enough diameter. That was a few years ago so it might not be true now. Steve Thomas CC27 MKIII -Original Message- From: CnC-List [mailto:cnc-list-boun...@cnc-list.com]On Behalf Of sam.c.sal...@gmail.com Sent: Monday, October 21, 2013 4:02 AM To: cnc-list@cnc-list.com Subject: Re: Stus-List Folding/feathering Props Good experiences; thanks for sharing. Looks like two or three endorsements for the Max Prop; about the same against the Martec; one for the Flexofold; ...and a Gori replacing a Martec! couple of questions: How big a deal is the maintenance on the Max Prop
Re: Stus-List Folding/feathering Props
Vibration can be the result of the clearance between the tip of the prop and the bottom of the boat. The rule of thumb, as I understand it, is that the clearance should be at least 10-15% of the prop diameter. More is better. So if you have a 16 diameter prop you should have a minimum of 2 clearance between prop and hull. More is better for vibration dur to pressure wave and for efficient flow. The old 17 prop on my boat caused vibration. The 16' prop doesn't seem to. Of course, that might be caused by different blade shapes, or balance, or whatever. YMMV. Rick Brass From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Jim Watts Sent: Tuesday, October 22, 2013 10:57 AM To: 1 CnC List Subject: Re: Stus-List Folding/feathering Props According to rumour, PYI told someone that the 2-blade MaxProp can cause some vibration issues between the tip of the prop blade and the flat on the bottom of the bustle on some CC's. This is probably what is happening with ours, since it is smooth as silk at some RPM's and will vibrate the fillings out of your teeth at others. The reason I don't think it's the prop itself is that a standard out-of-balance prop will cause worse vibration at higher RPM's, but ours smooths out quite a bit at the top end . ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
Re: Stus-List Folding/feathering Props
Alex; I've just started reading this e-mail string, so forgive me if what I am about to say has already been covered. All of the prop manufacturers I've dealt with offer a way to get a recommendation for the proper prop size on their website. You provide the HP of your engine (and maybe the model and max torque information), the gear reduction (output RPM) and max engine speed, and information on the size/model/weight of the boat. They tell you which prop options would be optimal. For my 15,000 pound 38, with 36 hp diesel @3000 max RPM, and a 1.76:1 reduction Gori recommended a 16x10, Martec a 16x 10.5, and Flex-o-fold a 15x11 (each in 2-blade, I'd need to look for the 3-blade recommendations). On the face of it, 14x12 looks like a lot of prop. State of the art electric drives (using AC controllers or DC Pulse Width Modulation) used in industrial vehicles can be designed to produce max torque at under 10 RPM, but the torque produced generally declines as RPM increases. My 16x10.5 Martec is roughly equivalent to a 14x14, I'm told. It is handling about 300 ft-lbs of max torque at about 1300 prop RPM. (Torque load falls off above that point as you approach 3000 engine/1700 prop RPM). Don't know what the torque curve is for your electric drive, but I wonder if it might be unable to reach a high enough RPM before the torque load maxes out the RPM. If you've not done so already, I'd suggest that you talk to the folks at Martec (and the manufacturer of your electric drive) to get a prop recommendation. Rick Brass -Original Message- From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Alex Giannelia Sent: Monday, October 21, 2013 2:00 PM To: cnc-list@cnc-list.com Subject: Stus-List Folding/feathering Props FWIW, I had a 14x6 Martec at the end of an old WESTERBEKE 15HP diesel pushing/pulling my CC35-II in and out of the slip and only when facing a real tailwind backing out of my slip, did I have noticeable problems. So, for my new Electric motor, I dove in and bought a MARTEC 14X12 and will have to wait till spring to see if I go forward, sideways or backward. Cheers! Alex Giannelia CC 35-II 1974 to be renamed after re-launch TORONTO, Ontario ag@@airsensing.com -Original Message- From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of cnc-list-requ...@cnc-list.com Sent: October-21-13 12:00 PM To: cnc-list@cnc-list.com Subject: CnC-List Digest, Vol 93, Issue 60 Send CnC-List mailing list submissions to cnc-list@cnc-list.com To subscribe or unsubscribe via the World Wide Web, visit http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com or, via email, send a message with subject or body 'help' to cnc-list-requ...@cnc-list.com You can reach the person managing the list at cnc-list-ow...@cnc-list.com When replying, please edit your Subject line so it is more specific than Re: Contents of CnC-List digest... Today's Topics: 1. Re: Folding/feathering Props (Steve Thomas) 2. Re: Folding/feathering Props (Paul Fountain) 3. Re: Folding/feathering Props (Jerome Tauber) 4. Re: Reply - Spar Crane (djhaug...@juno.com) 5. New Head and holding tank system. (djhaug...@juno.com) 6. Re: New Head and holding tank system. (Joel Aronson) 7. Re: New Head and holding tank system. (Jim Watts) -- Message: 1 Date: Mon, 21 Oct 2013 08:18:29 -0400 From: Steve Thomas sthom...@sympatico.ca To: cnc-list@cnc-list.com Subject: Re: Stus-List Folding/feathering Props Message-ID: blu0-smtp1852402267b7df525486a5bf...@phx.gbl Content-Type: text/plain; charset=utf-8 Sam, I found a used geared Gori for my 27 and it works fine in forward and reverse. I had hoped to find a 3 blade folder of some kind to minimise vibration but when I checked the manufacturers specifications there were none available in a small enough diameter. That was a few years ago so it might not be true now. Steve Thomas CC27 MKIII -Original Message- From: CnC-List [mailto:cnc-list-boun...@cnc-list.com]On Behalf Of sam.c.sal...@gmail.com Sent: Monday, October 21, 2013 4:02 AM To: cnc-list@cnc-list.com Subject: Re: Stus-List Folding/feathering Props Good experiences; thanks for sharing. Looks like two or three endorsements for the Max Prop; about the same against the Martec; one for the Flexofold; ...and a Gori replacing a Martec! couple of questions: How big a deal is the maintenance on the Max Prop? Is it just a matter of greasing the prop every couple of years or is there more? - I pull the boat out of the lake every October; so it wouldn't be too much of a concern. I still have the old prop on the shaft. Am I correct in assuming that the taper is a standard SAE? I'm going to need to know for sure before I order. (Probably safer to remove the prop and measure for peace of mind!) Any more information / experiences / insights welcome. sam CC 26. Liquorice
Re: Stus-List Folding/feathering Props
The link takes you to the flexofold web site. Scrolling down the page you will find a report The Ultimate Propeller Test http://www.flexofold.com/test-results/ This test was done by Yachting Monthly in the UK. The report is getting a bit old but it is certainly worth reading. Some of the data / test results are very surprising. I switched from a fixed 2 blade prop to a used 3 blade feathering prop (CDI - no longer in business) on my 29 mark 2 last spring and I am very happy with the results. Motoring speed is the same in forward / reverse but with a huge increase in power / thrust. Prop walk is less than with the 2 blade fixed. Improved speed under sail. Best regards, Bob Hickson, P. Eng, RHI, CEA CC 29-2 Flying Colours Frenchman's Bay Yacht Club Pickering, ON (416) 919-2297 mailto:bobhick...@rogers.com bobhick...@rogers.com __/) ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
Re: Stus-List Folding/feathering Props
According to rumour, PYI told someone that the 2-blade MaxProp can cause some vibration issues between the tip of the prop blade and the flat on the bottom of the bustle on some CC's. This is probably what is happening with ours, since it is smooth as silk at some RPM's and will vibrate the fillings out of your teeth at others. The reason I don't think it's the prop itself is that a standard out-of-balance prop will cause worse vibration at higher RPM's, but ours smooths out quite a bit at the top end . ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
Re: Stus-List Folding/feathering Props
Sam, The original prop was a Michigan Wheel fixed 2 blade, and there was no remarkable change in vibration either way when the Gori was installed. It might have been better, prop mass is more central to the shaft, but it would take some sort of measurement instrument to tell for certain. I have read, and it makes perfect sense, that all else being equal a 3 blade is less prone to vibration, so that is why I was looking. I don't think that I get appreciable vibration from the prop anyway, and whatever there may be is totally swamped out by the one cylinder diesel. (Yanmar YSB12) I did do a careful engine to prop shaft alignment once, which when wrong will cause vibration problems, and I should do it again sometime in mid to late season when the various hull bending stresses have settled down. It is a task best done on a cool day and when in a very patient frame of mind. I am sure that there must be someone who has done it, but I know of no one who actually has a 3 blade feathering or folding prop on a boat as small as ours. Makes it hard to weigh the advantage of such a costly upgrade. Steve Thomas CC27 MKIII -Original Message- From: CnC-List [mailto:cnc-list-boun...@cnc-list.com]On Behalf Of sam.c.sal...@gmail.com Sent: Tuesday, October 22, 2013 1:44 AM To: cnc-list@cnc-list.com Subject: Re: Stus-List Folding/feathering Props Steve, ...and anyone else - how do you find the 2 blade and vibration? I note you had a concern; was the concern justified or does the 2 blade run OK? Anyone have any experience with 2 blade and 3 blade vibration differences? If anyone is interested, I’ve had a quote back from Max Prop already: Current prop is: 12” x 8” RH 3 Blade Recommendations are: 12” x 10” 2 blade - $1500 12” x 9” 3 blade - $2400 sam :-) CC 26 Liquorice Ghost Lake Alberta From: Steve Thomas Sent: October 21, 2013 6:18 AM To: cnc-list@cnc-list.com Subject: Re: Stus-List Folding/feathering Props Sam, I found a used geared Gori for my 27 and it works fine in forward and reverse. I had hoped to find a 3 blade folder of some kind to minimise vibration but when I checked the manufacturers specifications there were none available in a small enough diameter. That was a few years ago so it might not be true now. Steve Thomas CC27 MKIII -Original Message- From: CnC-List [mailto:cnc-list-boun...@cnc-list.com]On Behalf Of sam.c.sal...@gmail.com Sent: Monday, October 21, 2013 4:02 AM To: cnc-list@cnc-list.com Subject: Re: Stus-List Folding/feathering Props Good experiences; thanks for sharing. Looks like two or three endorsements for the Max Prop; about the same against the Martec; one for the Flexofold; ...and a Gori replacing a Martec! couple of questions: How big a deal is the maintenance on the Max Prop? Is it just a matter of greasing the prop every couple of years or is there more? - I pull the boat out of the lake every October; so it wouldn't be too much of a concern. I still have the old prop on the shaft. Am I correct in assuming that the taper is a standard SAE? I'm going to need to know for sure before I order. (Probably safer to remove the prop and measure for peace of mind!) Any more information / experiences / insights welcome. sam CC 26. Liquorice Ghost Lake Alberta On 10/20/2013 7:21 PM, Tim Goodyear wrote: Sam, I have a two blade Flex I Fold, which goes nicely forwards and backwards and replaced a 2 blade non-geared Martec that went sideways in reverse and sometimes went forward if the blades opened together (even after rebuilding). The two do not compare. Tim Mojito CC 35-3 Branford, CT On Oct 20, 2013, at 7:10 PM, David Donnelly da...@gnuattitude.ca wrote: Sam I also have the 2 blade Martec and a 26. I have not found poor performance in reverse but I don't do it a bunch either. Can push just fine going forward. David Sent from Samsung Mobile Original message From: Harry Hallgring hhallgr...@icloud.com Date: 10-20-2013 5:00 PM (GMT-07:00) To: cnc-list@cnc-list.com Subject: Re: Stus-List Folding/feathering Props Sam, I have a two blade folding Martec prop that goes 7 kts forward and four kts directly sideways in reverse. Going with a Gori this winter. Harry Sent from my iPhone 6Beta On Oct 19, 2013, at 20:21, Sam Salter sam.c.sal...@gmail.com wrote: This winters project is a folding/feathering prop. I've just sent off inquiries to: Flexofold Max Prop Slipstream Anyone got any comments/observations/likes/dislikes. Any experience good or bad with any type of folding/feathering prop would be useful. Any other manufacturers recommended. Now is your chance to get in on a real sailing topic - folding/feathering props OR rum! sam :-) CC 26 Liquorice Ghost Lake Alberta
Re: Stus-List Folding/feathering Props
Ø … has a 3 blade feathering or folding prop on a boat as small… I had a 3 blade MAX Prop on a Ericson 30+ (2 cylinder diesel) back in the early 80’s. The boat was in a timeshare lease program here in the PNW. For me the three blade extra expense paid off in two ways. My timeshare customers often needed great brakes (i.e. backing power) and the ability to reverse in a straight line. The second advantage has to do with the many hours PNW cruisers will find themselves motoring in summer. A typical timeshare customer will attempt to cover many miles in their one week trip often pushing against the current. For our current CC 43, the three blade MAX Prop is all about traction. The heavy displacement can be a handful to stop if the skipper F’s up a landing. I have also pitched the prop to allow our Perkins 4-108 to develop full power/RPMs in case I need to power into big seas or out of a tide rip/whirlpool. (Long story short, I miss-calculated slack water at the BC narrows named “Hole in the wall”. Afterward the Mrs mumbled something about “never do that again with me onboard”. My young son just looked up and said “I’m glad I’m not driving”.) … According to rumor, PYI told someone that the 2-blade MaxProp can cause some vibration issues between the tip of the prop blade and the flat on the bottom of the bustle on some CC's. I have also experience with the effect of not enough distance between the prop blade and the hull. The rumor is accurate but comes with great variation based on prop diameter and hull shape. Here is another place where a three blade prop may have an advantage. With three blades a smaller prop diameter can be used to allow more space between the prop tip and the hull preventing water from “balling up” (my term not scientific) between the hull and prop. Martin Calypso 1971 CC 43 Seattle From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Steve Thomas Sent: Tuesday, October 22, 2013 8:08 AM To: cnc-list@cnc-list.com Subject: Re: Stus-List Folding/feathering Props Sam, The original prop was a Michigan Wheel fixed 2 blade, and there was no remarkable change in vibration either way when the Gori was installed. It might have been better, prop mass is more central to the shaft, but it would take some sort of measurement instrument to tell for certain. I have read, and it makes perfect sense, that all else being equal a 3 blade is less prone to vibration, so that is why I was looking. I don't think that I get appreciable vibration from the prop anyway, and whatever there may be is totally swamped out by the one cylinder diesel. (Yanmar YSB12) I did do a careful engine to prop shaft alignment once, which when wrong will cause vibration problems, and I should do it again sometime in mid to late season when the various hull bending stresses have settled down. It is a task best done on a cool day and when in a very patient frame of mind. I am sure that there must be someone who has done it, but I know of no one who actually has a 3 blade feathering or folding prop on a boat as small as ours. Makes it hard to weigh the advantage of such a costly upgrade. Steve Thomas CC27 MKIII -Original Message- From: CnC-List [mailto:cnc-list-boun...@cnc-list.com]On Behalf Of sam.c.sal...@gmail.commailto:sam.c.sal...@gmail.com Sent: Tuesday, October 22, 2013 1:44 AM To: cnc-list@cnc-list.commailto:cnc-list@cnc-list.com Subject: Re: Stus-List Folding/feathering Props Steve, ...and anyone else - how do you find the 2 blade and vibration? I note you had a concern; was the concern justified or does the 2 blade run OK? Anyone have any experience with 2 blade and 3 blade vibration differences? If anyone is interested, I’ve had a quote back from Max Prop already: Current prop is: 12” x 8” RH 3 Blade Recommendations are: 12” x 10” 2 blade - $1500 12” x 9” 3 blade - $2400 sam :-) CC 26 Liquorice Ghost Lake Alberta ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
Re: Stus-List Folding/feathering Props
Sam - I was all set to rave about my Autostream feathering prop, then noticed from other posts that we're talking about a 26 foot boat. My Autostream looks big and clunky on my 38 foot boat, and I don't know if they make a smaller sized unit for smaller shafts. It would be worth a call, if you're into it. I definitely like it over the Maxprop, because it's stainless steel, and the zincs for it have a SS sheath over the single bolt, and thus the zincs don't fall off. You can also adjust the pitch under water, if you can hold your breath that long G. It has an external grease nipple, so you don't have to disassemble it when you haul out to repack it -- just put a grease gun on and a hunk of plastic or cardboard on the ground and pump away until new grease gooshes out all over the place. Before that I had a Campbell prop and really liked it. If I owned a smaller boat I'd probably go that route. In fact, if I have to replace the Autostream I'd probably put another Campbell on. I only replaced it because I was in a hot marina and it was turning red, despite zinc changes every three months. (Yes, it was a hot marina. Since I've been cruising my zincs last two years.) Wal you wrote: Anyone got any comments/observations/likes/dislikes. Any experience good or bad with any type of folding/feathering prop would be useful. Any other manufacturers recommended. ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
Re: Stus-List Folding/feathering Props
Do not find any vibration with our two blade MaxProp. The vibration rumor about two blade props used to be common when the prop was behind a keel or inside a rudder aperture. Typical boats with attached rudders; Luders, older Sparkman and Stevens, 1970's Pearsons, etc. Supposedly the blades would lose thrust whenever they got behind the keel or aperture, and bite into clear water when in the stream. A three blade prop supposedly always has one blade in the stream. I never believed the theory. I like my two blade cause it feathers. We align the drive shaft when racing to orient the blades vertically. A three blade prop would feather but would always have more drag. Just look at them in the boatyard. Shaft angle causes at least two blades to be dragging. A three blade on a saildrive makes better sense, but I'd probably choose the two blade again. Chuck Resolute 1990 CC 34R Atlantic City, NJ - Original Message - From: sam c salter sam.c.sal...@gmail.com To: cnc-list@cnc-list.com Sent: Tuesday, October 22, 2013 1:43:50 AM Subject: Re: Stus-List Folding/feathering Props Steve, ...and anyone else - how do you find the 2 blade and vibration? I note you had a concern; was the concern justified or does the 2 blade run OK? Anyone have any experience with 2 blade and 3 blade vibration differences? If anyone is interested, I’ve had a quote back from Max Prop already: Current prop is: 12” x 8” RH 3 Blade Recommendations are: 12” x 10” 2 blade - $1500 12” x 9” 3 blade - $2400 sam :-) CC 26 Liquorice Ghost Lake Alberta From: Steve Thomas Sent: October 21, 2013 6:18 AM To: cnc-list@cnc-list.com Subject: Re: Stus-List Folding/feathering Props Sam, I found a used geared Gori for my 27 and it works fine in forward and reverse. I had hoped to find a 3 blade folder of some kind to minimise vibration but when I checked the manufacturers specifications there were none available in a small enough diameter. That was a few years ago so it might not be true now. Steve Thomas CC27 MKIII -Original Message- From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of sam.c.sal...@gmail.com Sent: Monday, October 21, 2013 4:02 AM To: cnc-list@cnc-list.com Subject: Re: Stus-List Folding/feathering Props Good experiences; thanks for sharing. Looks like two or three endorsements for the Max Prop; about the same against the Martec; one for the Flexofold; ...and a Gori replacing a Martec! couple of questions: How big a deal is the maintenance on the Max Prop? Is it just a matter of greasing the prop every couple of years or is there more? - I pull the boat out of the lake every October; so it wouldn't be too much of a concern. I still have the old prop on the shaft. Am I correct in assuming that the taper is a standard SAE? I'm going to need to know for sure before I order. (Probably safer to remove the prop and measure for peace of mind!) Any more information / experiences / insights welcome. sam CC 26. Liquorice Ghost Lake Alberta On 10/20/2013 7:21 PM, Tim Goodyear wrote: Sam, I have a two blade Flex I Fold, which goes nicely forwards and backwards and replaced a 2 blade non-geared Martec that went sideways in reverse and sometimes went forward if the blades opened together (even after rebuilding). The two do not compare. Tim Mojito CC 35-3 Branford, CT On Oct 20, 2013, at 7:10 PM, David Donnelly da...@gnuattitude.ca wrote: blockquote Sam I also have the 2 blade Martec and a 26. I have not found poor performance in reverse but I don't do it a bunch either. Can push just fine going forward. David Sent from Samsung Mobile Original message From: Harry Hallgring hhallgr...@icloud.com Date: 10-20-2013 5:00 PM (GMT-07:00) To: cnc-list@cnc-list.com Subject: Re: Stus-List Folding/feathering Props Sam, I have a two blade folding Martec prop that goes 7 kts forward and four kts directly sideways in reverse. Going with a Gori this winter. Harry Sent from my iPhone 6Beta On Oct 19, 2013, at 20:21, Sam Salter sam.c.sal...@gmail.com wrote: blockquote This winters project is a folding/feathering prop. I've just sent off inquiries to: Flexofold Max Prop Slipstream Anyone got any comments/observations/likes/dislikes. Any experience good or bad with any type of folding/feathering prop would be useful. Any other manufacturers recommended. Now is your chance to get in on a real sailing topic - folding/feathering props OR rum! sam :-) CC 26 Liquorice Ghost Lake Alberta blockquote ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com /blockquote /blockquote blockquote ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com /blockquote
Re: Stus-List Folding/feathering Props
I would go with Flexofold on a CC 26 On Sat, Oct 19, 2013 at 9:21 PM, Sam Salter sam.c.sal...@gmail.com wrote: This winters project is a folding/feathering prop. I've just sent off inquiries to: Flexofold Max Prop Slipstream Anyone got any comments/observations/likes/dislikes. Any experience good or bad with any type of folding/feathering prop would be useful. Any other manufacturers recommended. Now is your chance to get in on a real sailing topic - folding/feathering props *OR* rum! sam :-) CC 26 Liquorice Ghost Lake Alberta ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
Re: Stus-List Folding/feathering Props
Kiwi props is way ahead of the traditional metal props. They are composite and use an advanced design but may be too big for a 26. Check their web sites. Prices are lower. Jerry 27mkv www.kiwiprops.co.nz/cms/index.php Sent from my iPhone On Oct 22, 2013, at 6:15 PM, dwight veinot dwight...@gmail.com wrote: I would go with Flexofold on a CC 26 On Sat, Oct 19, 2013 at 9:21 PM, Sam Salter sam.c.sal...@gmail.com wrote: This winters project is a folding/feathering prop. I've just sent off inquiries to: Flexofold Max Prop Slipstream Anyone got any comments/observations/likes/dislikes. Any experience good or bad with any type of folding/feathering prop would be useful. Any other manufacturers recommended. Now is your chance to get in on a real sailing topic - folding/feathering props OR rum! sam :-) CC 26 Liquorice Ghost Lake Alberta ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
Re: Stus-List Folding/feathering Props
Good experiences; thanks for sharing. Looks like two or three endorsements for the Max Prop; about the same against the Martec; one for the Flexofold; ...and a Gori replacing a Martec! couple of questions: How big a deal is the maintenance on the Max Prop? Is it just a matter of greasing the prop every couple of years or is there more? - I pull the boat out of the lake every October; so it wouldn't be too much of a concern. I still have the old prop on the shaft. Am I correct in assuming that the taper is a standard SAE? I'm going to need to know for sure before I order. (Probably safer to remove the prop and measure for peace of mind!) Any more information / experiences / insights welcome.samCC 26. LiquoriceGhost Lake Alberta ââOn 10/20/2013 7:21 PM, Tim Goodyear wrote: Sam, I have a two blade Flex I Fold, which goes nicely forwards and backwards and replaced a 2 blade non-geared Martec that went sideways in reverse and sometimes went forward if the blades opened together (even after rebuilding). The two do not compare. Tim Mojito CC 35-3 Branford, CT On Oct 20, 2013, at 7:10 PM, David Donnelly da...@gnuattitude.ca wrote: Sam I also have the 2 blade Martec and a 26. I have not found poor performance in reverse but I don't do it a bunch either. Can push just fine going forward. David Sent from Samsung Mobile Original message From: Harry Hallgring hhallgr...@icloud.com Date: 10-20-2013 5:00 PM (GMT-07:00) To: cnc-list@cnc-list.com Subject: Re: Stus-List Folding/feathering Props Sam, I have a two blade folding Martec prop that goes 7 kts forward and four kts directly sideways in reverse. Going with a Gori this winter. Harry Sent from my iPhone 6Beta On Oct 19, 2013, at 20:21, Sam Salter sam.c.sal...@gmail.com wrote: This winters project is a folding/feathering prop. I've just sent off inquiries to: Flexofold Max Prop Slipstream Anyone got any comments/observations/likes/dislikes. Any experience good or bad with any type of folding/feathering prop would be useful. Any other manufacturers recommended. Now is your chance to get in on a real sailing topic - folding/feathering props OR rum! sam :-) CC 26 Liquorice Ghost Lake Alberta ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
Re: Stus-List Folding/feathering Props
Sam: www.pyiinc.com will tell all and may well be your best source too. You may be able to find a used or reconditioned unit. Maintenance on mine has been annual greasing and zinc replacement. 14 years, no problems. Rich On Oct 21, 2013, at 5:02, sam.c.sal...@gmail.com wrote: Good experiences; thanks for sharing. Looks like two or three endorsements for the Max Prop; about the same against the Martec; one for the Flexofold; ...and a Gori replacing a Martec! couple of questions: How big a deal is the maintenance on the Max Prop? Is it just a matter of greasing the prop every couple of years or is there more? - I pull the boat out of the lake every October; so it wouldn't be too much of a concern. I still have the old prop on the shaft. Am I correct in assuming that the taper is a standard SAE? I'm going to need to know for sure before I order. (Probably safer to remove the prop and measure for peace of mind!) Any more information / experiences / insights welcome. sam CC 26. Liquorice Ghost Lake Alberta On 10/20/2013 7:21 PM, Tim Goodyear wrote: Sam, I have a two blade Flex I Fold, which goes nicely forwards and backwards and replaced a 2 blade non-geared Martec that went sideways in reverse and sometimes went forward if the blades opened together (even after rebuilding). The two do not compare. Tim Mojito CC 35-3 Branford, CT On Oct 20, 2013, at 7:10 PM, David Donnelly da...@gnuattitude.ca wrote: Sam I also have the 2 blade Martec and a 26. I have not found poor performance in reverse but I don't do it a bunch either. Can push just fine going forward. David Sent from Samsung Mobile Original message From: Harry Hallgring hhallgr...@icloud.com Date: 10-20-2013 5:00 PM (GMT-07:00) To: cnc-list@cnc-list.com Subject: Re: Stus-List Folding/feathering Props Sam, I have a two blade folding Martec prop that goes 7 kts forward and four kts directly sideways in reverse. Going with a Gori this winter. Harry Sent from my iPhone 6Beta On Oct 19, 2013, at 20:21, Sam Salter sam.c.sal...@gmail.com wrote: This winters project is a folding/feathering prop. I've just sent off inquiries to: Flexofold Max Prop Slipstream Anyone got any comments/observations/likes/dislikes. Any experience good or bad with any type of folding/feathering prop would be useful. Any other manufacturers recommended. Now is your chance to get in on a real sailing topic - folding/feathering props OR rum! sam :-) CC 26 Liquorice Ghost Lake Alberta ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
Re: Stus-List Folding/feathering Props
The Gori Three Blade? Bill Coleman CC 39 animated_favicon1 From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Harry Hallgring Sent: Sunday, October 20, 2013 7:01 PM To: cnc-list@cnc-list.com Subject: Re: Stus-List Folding/feathering Props Sam, I have a two blade folding Martec prop that goes 7 kts forward and four kts directly sideways in reverse. Going with a Gori this winter. Harry Sent from my iPhone 6Beta image001.gif___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
Re: Stus-List Folding/feathering Props
Sam, I found a used geared Gori for my 27 and it works fine in forward and reverse. I had hoped to find a 3 blade folder of some kind to minimise vibration but when I checked the manufacturers specifications there were none available in a small enough diameter. That was a few years ago so it might not be true now. Steve Thomas CC27 MKIII -Original Message- From: CnC-List [mailto:cnc-list-boun...@cnc-list.com]On Behalf Of sam.c.sal...@gmail.com Sent: Monday, October 21, 2013 4:02 AM To: cnc-list@cnc-list.com Subject: Re: Stus-List Folding/feathering Props Good experiences; thanks for sharing. Looks like two or three endorsements for the Max Prop; about the same against the Martec; one for the Flexofold; ...and a Gori replacing a Martec! couple of questions: How big a deal is the maintenance on the Max Prop? Is it just a matter of greasing the prop every couple of years or is there more? - I pull the boat out of the lake every October; so it wouldn't be too much of a concern. I still have the old prop on the shaft. Am I correct in assuming that the taper is a standard SAE? I'm going to need to know for sure before I order. (Probably safer to remove the prop and measure for peace of mind!) Any more information / experiences / insights welcome. sam CC 26. Liquorice Ghost Lake Alberta On 10/20/2013 7:21 PM, Tim Goodyear wrote: Sam, I have a two blade Flex I Fold, which goes nicely forwards and backwards and replaced a 2 blade non-geared Martec that went sideways in reverse and sometimes went forward if the blades opened together (even after rebuilding). The two do not compare. Tim Mojito CC 35-3 Branford, CT On Oct 20, 2013, at 7:10 PM, David Donnelly da...@gnuattitude.ca wrote: Sam I also have the 2 blade Martec and a 26. I have not found poor performance in reverse but I don't do it a bunch either. Can push just fine going forward. David Sent from Samsung Mobile Original message From: Harry Hallgring hhallgr...@icloud.com Date: 10-20-2013 5:00 PM (GMT-07:00) To: cnc-list@cnc-list.com Subject: Re: Stus-List Folding/feathering Props Sam, I have a two blade folding Martec prop that goes 7 kts forward and four kts directly sideways in reverse. Going with a Gori this winter. Harry Sent from my iPhone 6Beta On Oct 19, 2013, at 20:21, Sam Salter sam.c.sal...@gmail.com wrote: This winters project is a folding/feathering prop. I've just sent off inquiries to: Flexofold Max Prop Slipstream Anyone got any comments/observations/likes/dislikes. Any experience good or bad with any type of folding/feathering prop would be useful. Any other manufacturers recommended. Now is your chance to get in on a real sailing topic - folding/feathering props OR rum! sam :-) CC 26 Liquorice Ghost Lake Alberta ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
Re: Stus-List Folding/feathering Props
Sam, Another vote for Flex-o-fold. Put a 2 blade on Perception after we repowered and love it, replaced a 3 blade Campbell Sailor – and great in forward and reverse. From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of sam.c.sal...@gmail.com Sent: October-21-13 4:02 AM To: cnc-list@cnc-list.com Subject: Re: Stus-List Folding/feathering Props Good experiences; thanks for sharing. Looks like two or three endorsements for the Max Prop; about the same against the Martec; one for the Flexofold; ...and a Gori replacing a Martec! couple of questions: How big a deal is the maintenance on the Max Prop? Is it just a matter of greasing the prop every couple of years or is there more? - I pull the boat out of the lake every October; so it wouldn't be too much of a concern. I still have the old prop on the shaft. Am I correct in assuming that the taper is a standard SAE? I'm going to need to know for sure before I order. (Probably safer to remove the prop and measure for peace of mind!) Any more information / experiences / insights welcome. sam CC 26. Liquorice Ghost Lake Alberta On 10/20/2013 7:21 PM, Tim Goodyear wrote: Sam, I have a two blade Flex I Fold, which goes nicely forwards and backwards and replaced a 2 blade non-geared Martec that went sideways in reverse and sometimes went forward if the blades opened together (even after rebuilding). The two do not compare. Tim Mojito CC 35-3 Branford, CT On Oct 20, 2013, at 7:10 PM, David Donnelly da...@gnuattitude.ca wrote: Sam I also have the 2 blade Martec and a 26. I have not found poor performance in reverse but I don't do it a bunch either. Can push just fine going forward. David Sent from Samsung Mobile Original message From: Harry Hallgring hhallgr...@icloud.com Date: 10-20-2013 5:00 PM (GMT-07:00) To: cnc-list@cnc-list.com Subject: Re: Stus-List Folding/feathering Props Sam, I have a two blade folding Martec prop that goes 7 kts forward and four kts directly sideways in reverse. Going with a Gori this winter. Harry Sent from my iPhone 6Beta On Oct 19, 2013, at 20:21, Sam Salter sam.c.sal...@gmail.com wrote: This winters project is a folding/feathering prop. I've just sent off inquiries to: Flexofold Max Prop Slipstream Anyone got any comments/observations/likes/dislikes. Any experience good or bad with any type of folding/feathering prop would be useful. Any other manufacturers recommended. Now is your chance to get in on a real sailing topic - folding/feathering props OR rum! sam :-) CC 26 Liquorice Ghost Lake Alberta ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
Re: Stus-List Folding/feathering Props
There is a new Kiwi company out of New Zeland making composite feathering props getting rave reviews. A friend put one on his Sweden 38 and says he gained a half knot under sail and power. Here is the contact info. Web site - http://www.kiwiprops.co.nz/cms/index.php, POSTAL ADDRESS: FACTORY LOCATION: Kiwi Feather Props Ltd 12 c Homestead Drive, Mt Wellington,AK 1072 PO Box 25-367 St Heliers Bay Auckland 1740, NEW ZEALAND email: Email Kiwiprops GMT + 12 hours Phone: +64 9 5757 975 Factory: +64 9 5745 606 -Original Message- From: Steve Thomas sthom...@sympatico.ca To: cnc-list cnc-list@cnc-list.com Sent: Mon, Oct 21, 2013 8:18 am Subject: Re: Stus-List Folding/feathering Props Sam, I found a used geared Gori for my 27 and it works fine in forward and reverse. I had hoped to find a 3 blade folder of some kind to minimise vibration but when I checked the manufacturers specifications there were none available in a small enough diameter. That was a few years ago so it might not be true now. Steve Thomas CC27 MKIII -Original Message- From: CnC-List [mailto:cnc-list-boun...@cnc-list.com]On Behalf Of sam.c.sal...@gmail.com Sent: Monday, October 21, 2013 4:02 AM To: cnc-list@cnc-list.com Subject: Re: Stus-List Folding/feathering Props Good experiences; thanks for sharing. Looks like two or three endorsements for the Max Prop; about the same against the Martec; one for the Flexofold; ...and a Gori replacing a Martec! couple of questions: How big a deal is the maintenance on the Max Prop? Is it just a matter of greasing the prop every couple of years or is there more? - I pull the boat out of the lake every October; so it wouldn't be too much of a concern. I still have the old prop on the shaft. Am I correct in assuming that the taper is a standard SAE? I'm going to need to know for sure before I order. (Probably safer to remove the prop and measure for peace of mind!) Any more information / experiences / insights welcome. sam CC 26. Liquorice Ghost Lake Alberta On 10/20/2013 7:21 PM, Tim Goodyear wrote: Sam, I have a two blade Flex I Fold, which goes nicely forwards and backwards and replaced a 2 blade non-geared Martec that went sideways in reverse and sometimes went forward if the blades opened together(even after rebuilding). The two do not compare. Tim Mojito CC 35-3 Branford, CT On Oct 20, 2013, at 7:10 PM, David Donnelly da...@gnuattitude.ca wrote: Sam I also have the 2 blade Martec and a 26. I have not found poor performance in reverse but I don't do it a bunch either. Can push just fine going forward. David Sent from Samsung Mobile Original message From: Harry Hallgring hhallgr...@icloud.com Date: 10-20-2013 5:00 PM (GMT-07:00) To: cnc-list@cnc-list.com Subject: Re: Stus-List Folding/feathering Props Sam, I have a two blade folding Martec prop that goes 7 kts forward and four kts directly sideways in reverse. Going with a Gori this winter. Harry Sent from my iPhone 6Beta On Oct 19, 2013, at 20:21, Sam Salter sam.c.sal...@gmail.com wrote: This winters project is a folding/feathering prop. I've just sent off inquiries to: Flexofold Max Prop Slipstream Anyone got any comments/observations/likes/dislikes. Any experience good or bad with any type of folding/feathering prop would be useful. Any other manufacturers recommended. Now is your chance to get in on a real sailing topic - folding/feathering props OR rum! sam :-) CC 26 Liquorice Ghost Lake Alberta ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
Re: Stus-List Folding/feathering Props
I second Rich’s comments regarding MAX prop maintenance and how contacting PYI Inc plus reading the info on their web site as being helpful in the prop type decision. We did modify Calypso’s prop shaft slightly to install our MAX prop. We did this back in 1999 but IIRC we cut ½” off the threaded end to match the MAX Prop installation specs. Follow the guidelines for insuring the taper and key allow complete seating of the prop to avoid extra vibration and wear. Calypso is in salt water all year. I use Pettit’s Barnacle Barrier zinc paint to protect from cold water growth. I use the MAX prop zinc plus 2 shaft zincs (sacrificial anodes). I dive to check the prop and zincs twice a year and haul out every two years on average. Being in fresh water for the sailing season and out for winter, your maintenance should be significantly easier. If your boat yard has issues with theft consider removing the MAX prop for the winter to avoid it being stolen for the scrap value. The prop is easily removed and re-installed, blades only even easier. Martin Calypso 1971 CC 43 Seattle From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Rich Knowles Sent: Monday, October 21, 2013 2:04 AM To: cnc-list@cnc-list.com Subject: Re: Stus-List Folding/feathering Props Sam: www.pyiinc.comhttp://www.pyiinc.com will tell all and may well be your best source too. You may be able to find a used or reconditioned unit. Maintenance on mine has been annual greasing and zinc replacement. 14 years, no problems. Rich On Oct 21, 2013, at 5:02, sam.c.sal...@gmail.commailto:sam.c.sal...@gmail.com wrote: Good experiences; thanks for sharing. Looks like two or three endorsements for the Max Prop; about the same against the Martec; one for the Flexofold; ...and a Gori replacing a Martec! couple of questions: How big a deal is the maintenance on the Max Prop? Is it just a matter of greasing the prop every couple of years or is there more? - I pull the boat out of the lake every October; so it wouldn't be too much of a concern. I still have the old prop on the shaft. Am I correct in assuming that the taper is a standard SAE? I'm going to need to know for sure before I order. (Probably safer to remove the prop and measure for peace of mind!) Any more information / experiences / insights welcome. sam CC 26. Liquorice Ghost Lake Alberta ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
Re: Stus-List Folding/feathering Props
Happy with my Flex o Fold. Quality construction (better machining than others) - works well because it is geared so it opens every time, forward and reverse. Gary Nylander 30-1 Chesapeake - Original Message - From: Sam Salter To: cnc-list@cnc-list.com Sent: Saturday, October 19, 2013 8:21 PM Subject: Stus-List Folding/feathering Props This winters project is a folding/feathering prop. I've just sent off inquiries to: Flexofold Max Prop Slipstream Anyone got any comments/observations/likes/dislikes. Any experience good or bad with any type of folding/feathering prop would be useful. Any other manufacturers recommended. Now is your chance to get in on a real sailing topic - folding/feathering props OR rum! sam :-) CC 26 Liquorice Ghost Lake Alberta -- ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
Re: Stus-List Folding/feathering Props
Out of sheer curiosity, Alex, how did you determine size and pitch of the new prop? Rich On Oct 21, 2013, at 14:59, Alex Giannelia a...@airsensing.com wrote: FWIW, I had a 14x6 Martec at the end of an old WESTERBEKE 15HP diesel pushing/pulling my CC35-II in and out of the slip and only when facing a real tailwind backing out of my slip, did I have noticeable problems. So, for my new Electric motor, I dove in and bought a MARTEC 14X12 and will have to wait till spring to see if I go forward, sideways or backward. Cheers! Alex Giannelia CC 35-II 1974 to be renamed after re-launch TORONTO, Ontario ag@@airsensing.com -Original Message- From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of cnc-list-requ...@cnc-list.com Sent: October-21-13 12:00 PM To: cnc-list@cnc-list.com Subject: CnC-List Digest, Vol 93, Issue 60 Send CnC-List mailing list submissions to cnc-list@cnc-list.com To subscribe or unsubscribe via the World Wide Web, visit http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com or, via email, send a message with subject or body 'help' to cnc-list-requ...@cnc-list.com You can reach the person managing the list at cnc-list-ow...@cnc-list.com When replying, please edit your Subject line so it is more specific than Re: Contents of CnC-List digest... Today's Topics: 1. Re: Folding/feathering Props (Steve Thomas) ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
Re: Stus-List Folding/feathering Props
Sent from my iPhone On Oct 21, 2013, at 9:41 AM, Jerome Tauber jrtau...@aol.com wrote: There is a new Kiwi company out of New Zeland making composite feathering props getting rave reviews. A friend put one on his Sweden 38 and says he gained a half knot under sail and power. Here is the contact info. Web site - http://www.kiwiprops.co.nz/cms/index.php, POSTAL ADDRESS: FACTORY LOCATION: Kiwi Feather Props Ltd 12 c Homestead Drive, Mt Wellington,AK 1072 PO Box 25-367 St Heliers Bay Auckland 1740, NEW ZEALAND email: Email Kiwiprops GMT + 12 hours Phone: +64 9 5757 975 Factory: +64 9 5745 606 -Original Message- From: Steve Thomas sthom...@sympatico.ca To: cnc-list cnc-list@cnc-list.com Sent: Mon, Oct 21, 2013 8:18 am Subject: Re: Stus-List Folding/feathering Props Sam, I found a used geared Gori for my 27 and it works fine in forward and reverse. I had hoped to find a 3 blade folder of some kind to minimise vibration but when I checked the manufacturers specifications there were none available in a small enough diameter. That was a few years ago so it might not be true now. Steve Thomas CC27 MKIII -Original Message- From: CnC-List [mailto:cnc-list-boun...@cnc-list.com]On Behalf Of sam.c.sal...@gmail.com Sent: Monday, October 21, 2013 4:02 AM To: cnc-list@cnc-list.com Subject: Re: Stus-List Folding/feathering Props Good experiences; thanks for sharing. Looks like two or three endorsements for the Max Prop; about the same against the Martec; one for the Flexofold; ...and a Gori replacing a Martec! couple of questions: How big a deal is the maintenance on the Max Prop? Is it just a matter of greasing the prop every couple of years or is there more? - I pull the boat out of the lake every October; so it wouldn't be too much of a concern. I still have the old prop on the shaft. Am I correct in assuming that the taper is a standard SAE? I'm going to need to know for sure before I order. (Probably safer to remove the prop and measure for peace of mind!) Any more information / experiences / insights welcome. sam CC 26. Liquorice Ghost Lake Alberta On 10/20/2013 7:21 PM, Tim Goodyear wrote: Sam, I have a two blade Flex I Fold, which goes nicely forwards and backwards and replaced a 2 blade non-geared Martec that went sideways in reverse and sometimes went forward if the blades opened together (even after rebuilding). The two do not compare. Tim Mojito CC 35-3 Branford, CT On Oct 20, 2013, at 7:10 PM, David Donnelly da...@gnuattitude.ca wrote: Sam I also have the 2 blade Martec and a 26. I have not found poor performance in reverse but I don't do it a bunch either. Can push just fine going forward. David Sent from Samsung Mobile Original message From: Harry Hallgring hhallgr...@icloud.com Date: 10-20-2013 5:00 PM (GMT-07:00) To: cnc-list@cnc-list.com Subject: Re: Stus-List Folding/feathering Props Sam, I have a two blade folding Martec prop that goes 7 kts forward and four kts directly sideways in reverse. Going with a Gori this winter. Harry Sent from my iPhone 6Beta On Oct 19, 2013, at 20:21, Sam Salter sam.c.sal...@gmail.com wrote: This winters project is a folding/feathering prop. I've just sent off inquiries to: Flexofold Max Prop Slipstream Anyone got any comments/observations/likes/dislikes. Any experience good or bad with any type of folding/feathering prop would be useful. Any other manufacturers recommended. Now is your chance to get in on a real sailing topic - folding/feathering props OR rum! sam :-) CC 26 Liquorice Ghost Lake Alberta ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
Re: Stus-List Folding/feathering Props
Have the Max Prop two blade feathering prop. Great forward and reverse and braking. The prop is pricey but reliable. I looked at many other designs before settling on MaxProp. You set the pitch during installation, so you can increase or decrease on the next haul if necessary to tweak it. Maintenance is simple; grease at haulout (to push out any water prevent freeze damage) and before launch to be sure prop is fully lubed. Not too big a deal. The prop has two set screws which you remove and replace with zercs. Then replace zercs with set screws before launch. I think greasing extends the life a great deal. I might consider a Flex-O-Fold. They seem beefy and well designed and a lot less money. Chuck Resolute 1990 CC 34R Atlantic City, NJ - Original Message - From: sam c salter sam.c.sal...@gmail.com To: cnc-list@cnc-list.com Sent: Monday, October 21, 2013 4:02:14 AM Subject: Re: Stus-List Folding/feathering Props Good experiences; thanks for sharing. Looks like two or three endorsements for the Max Prop; about the same against the Martec; one for the Flexofold; ...and a Gori replacing a Martec! couple of questions: How big a deal is the maintenance on the Max Prop? Is it just a matter of greasing the prop every couple of years or is there more? - I pull the boat out of the lake every October; so it wouldn't be too much of a concern. I still have the old prop on the shaft. Am I correct in assuming that the taper is a standard SAE? I'm going to need to know for sure before I order. (Probably safer to remove the prop and measure for peace of mind!) Any more information / experiences / insights welcome. sam CC 26. Liquorice Ghost Lake Alberta On 10/20/2013 7:21 PM, Tim Goodyear wrote: Sam, I have a two blade Flex I Fold, which goes nicely forwards and backwards and replaced a 2 blade non-geared Martec that went sideways in reverse and sometimes went forward if the blades opened together (even after rebuilding). The two do not compare. Tim Mojito CC 35-3 Branford, CT On Oct 20, 2013, at 7:10 PM, David Donnelly da...@gnuattitude.ca wrote: blockquote Sam I also have the 2 blade Martec and a 26. I have not found poor performance in reverse but I don't do it a bunch either. Can push just fine going forward. David Sent from Samsung Mobile Original message From: Harry Hallgring hhallgr...@icloud.com Date: 10-20-2013 5:00 PM (GMT-07:00) To: cnc-list@cnc-list.com Subject: Re: Stus-List Folding/feathering Props Sam, I have a two blade folding Martec prop that goes 7 kts forward and four kts directly sideways in reverse. Going with a Gori this winter. Harry Sent from my iPhone 6Beta On Oct 19, 2013, at 20:21, Sam Salter sam.c.sal...@gmail.com wrote: blockquote This winters project is a folding/feathering prop. I've just sent off inquiries to: Flexofold Max Prop Slipstream Anyone got any comments/observations/likes/dislikes. Any experience good or bad with any type of folding/feathering prop would be useful. Any other manufacturers recommended. Now is your chance to get in on a real sailing topic - folding/feathering props OR rum! sam :-) CC 26 Liquorice Ghost Lake Alberta blockquote ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com /blockquote /blockquote blockquote ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com /blockquote ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com /blockquote ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
Re: Stus-List Folding/feathering Props
There is a new Kiwi company out of New Zeland making composite feathering props getting rave reviews. A friend put one on his Sweden 38 and says he gained a half knot under sail and power. Here is the contact info. Web site -http://www.kiwiprops.co.nz/cms/index.php Sent from my iPhone On Oct 21, 2013, at 3:18 PM, Chuck S cscheaf...@comcast.net wrote: Have the Max Prop two blade feathering prop. Great forward and reverse and braking. The prop is pricey but reliable. I looked at many other designs before settling on MaxProp. You set the pitch during installation, so you can increase or decrease on the next haul if necessary to tweak it. Maintenance is simple; grease at haulout (to push out any water prevent freeze damage) and before launch to be sure prop is fully lubed. Not too big a deal. The prop has two set screws which you remove and replace with zercs. Then replace zercs with set screws before launch. I think greasing extends the life a great deal. I might consider a Flex-O-Fold. They seem beefy and well designed and a lot less money. Chuck Resolute 1990 CC 34R Atlantic City, NJ From: sam c salter sam.c.sal...@gmail.com To: cnc-list@cnc-list.com Sent: Monday, October 21, 2013 4:02:14 AM Subject: Re: Stus-List Folding/feathering Props Good experiences; thanks for sharing. Looks like two or three endorsements for the Max Prop; about the same against the Martec; one for the Flexofold; ...and a Gori replacing a Martec! couple of questions: How big a deal is the maintenance on the Max Prop? Is it just a matter of greasing the prop every couple of years or is there more? - I pull the boat out of the lake every October; so it wouldn't be too much of a concern. I still have the old prop on the shaft. Am I correct in assuming that the taper is a standard SAE? I'm going to need to know for sure before I order. (Probably safer to remove the prop and measure for peace of mind!) Any more information / experiences / insights welcome. sam CC 26. Liquorice Ghost Lake Alberta On 10/20/2013 7:21 PM, Tim Goodyear wrote: Sam, I have a two blade Flex I Fold, which goes nicely forwards and backwards and replaced a 2 blade non-geared Martec that went sideways in reverse and sometimes went forward if the blades opened together (even after rebuilding). The two do not compare. Tim Mojito CC 35-3 Branford, CT On Oct 20, 2013, at 7:10 PM, David Donnelly da...@gnuattitude.ca wrote: Sam I also have the 2 blade Martec and a 26. I have not found poor performance in reverse but I don't do it a bunch either. Can push just fine going forward. David Sent from Samsung Mobile Original message From: Harry Hallgring hhallgr...@icloud.com Date: 10-20-2013 5:00 PM (GMT-07:00) To: cnc-list@cnc-list.com Subject: Re: Stus-List Folding/feathering Props Sam, I have a two blade folding Martec prop that goes 7 kts forward and four kts directly sideways in reverse. Going with a Gori this winter. Harry Sent from my iPhone 6Beta On Oct 19, 2013, at 20:21, Sam Salter sam.c.sal...@gmail.com wrote: This winters project is a folding/feathering prop. I've just sent off inquiries to: Flexofold Max Prop Slipstream Anyone got any comments/observations/likes/dislikes. Any experience good or bad with any type of folding/feathering prop would be useful. Any other manufacturers recommended. Now is your chance to get in on a real sailing topic - folding/feathering props OR rum! sam :-) CC 26 Liquorice Ghost Lake Alberta ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
Re: Stus-List Folding/feathering Props
I bought my KiwiProp from the newish company back in 2006. At the time they didn't make one that would match the lower HP rating of a motor that you typically find installed in a 26 footer. Cheers, Russ Sweet 35 mk-1 There is a new Kiwi company out of New Zeland making composite feathering props getting rave reviews. A friend put one on his Sweden 38 and says he gained a half knot under sail and power. Here is the contact info. Web site - http://www.kiwiprops.co.nz/cms/index.phphttp://www.kiwiprops.co.nz/cms/index.php, POSTAL ADDRESS: FACTORY LOCATION: Kiwi Feather Props Ltd 12 c Homestead Drive, Mt Wellington,AK 1072 PO Box 25-367 St Heliers Bay Auckland 1740, NEW ZEALAND email: mailto:kiwipr...@xtra.co.nz?Subject=Web%20QueryEmail Kiwiprops GMT + 12 hours Phone: +64 9 5757 975 Factory: +64 9 5745 606 -Original Message- From: Steve Thomas sthom...@sympatico.ca To: cnc-list cnc-list@cnc-list.com Sent: Mon, Oct 21, 2013 8:18 am Subject: Re: Stus-List Folding/feathering Props Sam, I found a used geared Gori for my 27 and it works fine in forward and reverse. I had hoped to find a 3 blade folder of some kind to minimise vibration but when I checked the manufacturers specifications there were none available in a small enough diameter. That was a few years ago so it might not be true now. Steve Thomas CC27 MKIII ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
Re: Stus-List Folding/feathering Props
Steve, ...and anyone else - how do you find the 2 blade and vibration? I note you had a concern; was the concern justified or does the 2 blade run OK? Anyone have any experience with 2 blade and 3 blade vibration differences? If anyone is interested, I’ve had a quote back from Max Prop already: Current prop is: 12” x 8” RH 3 Blade Recommendations are: 12” x 10” 2 blade - $1500 12” x 9” 3 blade - $2400 sam :-) CC 26 Liquorice Ghost Lake Alberta From: Steve Thomas Sent: October 21, 2013 6:18 AM To: cnc-list@cnc-list.com Subject: Re: Stus-List Folding/feathering Props Sam, I found a used geared Gori for my 27 and it works fine in forward and reverse. I had hoped to find a 3 blade folder of some kind to minimise vibration but when I checked the manufacturers specifications there were none available in a small enough diameter. That was a few years ago so it might not be true now. Steve Thomas CC27 MKIII -Original Message- From: CnC-List [mailto:cnc-list-boun...@cnc-list.com]On Behalf Of sam.c.sal...@gmail.com Sent: Monday, October 21, 2013 4:02 AM To: cnc-list@cnc-list.com Subject: Re: Stus-List Folding/feathering Props Good experiences; thanks for sharing. Looks like two or three endorsements for the Max Prop; about the same against the Martec; one for the Flexofold; ...and a Gori replacing a Martec! couple of questions: How big a deal is the maintenance on the Max Prop? Is it just a matter of greasing the prop every couple of years or is there more? - I pull the boat out of the lake every October; so it wouldn't be too much of a concern. I still have the old prop on the shaft. Am I correct in assuming that the taper is a standard SAE? I'm going to need to know for sure before I order. (Probably safer to remove the prop and measure for peace of mind!) Any more information / experiences / insights welcome. sam CC 26. Liquorice Ghost Lake Alberta On 10/20/2013 7:21 PM, Tim Goodyear wrote: Sam, I have a two blade Flex I Fold, which goes nicely forwards and backwards and replaced a 2 blade non-geared Martec that went sideways in reverse and sometimes went forward if the blades opened together (even after rebuilding). The two do not compare. Tim Mojito CC 35-3 Branford, CT On Oct 20, 2013, at 7:10 PM, David Donnelly da...@gnuattitude.ca wrote: Sam I also have the 2 blade Martec and a 26. I have not found poor performance in reverse but I don't do it a bunch either. Can push just fine going forward. David Sent from Samsung Mobile Original message From: Harry Hallgring hhallgr...@icloud.com Date: 10-20-2013 5:00 PM (GMT-07:00) To: cnc-list@cnc-list.com Subject: Re: Stus-List Folding/feathering Props Sam, I have a two blade folding Martec prop that goes 7 kts forward and four kts directly sideways in reverse. Going with a Gori this winter. Harry Sent from my iPhone 6Beta On Oct 19, 2013, at 20:21, Sam Salter sam.c.sal...@gmail.com wrote: This winters project is a folding/feathering prop. I've just sent off inquiries to: Flexofold Max Prop Slipstream Anyone got any comments/observations/likes/dislikes. Any experience good or bad with any type of folding/feathering prop would be useful. Any other manufacturers recommended. Now is your chance to get in on a real sailing topic - folding/feathering props OR rum! sam :-) CC 26 Liquorice Ghost Lake Alberta ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
Stus-List Folding/feathering Props
This winters project is a folding/feathering prop. I've just sent off inquiries to: Flexofold Max Prop Slipstream Anyone got any comments/observations/likes/dislikes. Any experience good or bad with any type of folding/feathering prop would be useful. Any other manufacturers recommended. Now is your chance to get in on a real sailing topic - folding/feathering props *_OR_* rum! sam :-) CC 26 Liquorice Ghost Lake Alberta ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
Re: Stus-List Folding/feathering Props
Love my 3 blade MaxProp. However, not sure if a geared folder might not be more sensible for a 26' boat. Leave more $ for rum. Rich On Oct 19, 2013, at 21:21, Sam Salter sam.c.sal...@gmail.com wrote: This winters project is a folding/feathering prop. I've just sent off inquiries to: Flexofold Max Prop Slipstream Anyone got any comments/observations/likes/dislikes. Any experience good or bad with any type of folding/feathering prop would be useful. Any other manufacturers recommended. Now is your chance to get in on a real sailing topic - folding/feathering props OR rum! sam :-) CC 26 Liquorice Ghost Lake Alberta ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
Re: Stus-List Folding/feathering Props
My 35/3 has a 2 blade MaxProp. The boat moves well both forward and back
ithout too much prop walk.
I'm going to have it serviced this winter. Not looking forward to the
bill.
On Sunday, October 20, 2013, Rich Knowles wrote:
Love my 3 blade MaxProp. However, not sure if a geared folder might not be
more sensible for a 26' boat. Leave more $ for rum.
Rich
On Oct 19, 2013, at 21:21, Sam Salter
sam.c.sal...@gmail.comjavascript:_e({}, 'cvml', 'sam.c.sal...@gmail.com');
wrote:
This winters project is a folding/feathering prop.
I've just sent off inquiries to:
Flexofold
Max Prop
Slipstream
Anyone got any comments/observations/likes/dislikes.
Any experience good or bad with any type of folding/feathering prop would
be useful.
Any other manufacturers recommended.
Now is your chance to get in on a real sailing topic - folding/feathering
props *OR* rum!
sam :-)
CC 26 Liquorice
Ghost Lake Alberta
___
This List is provided by the CC Photo Album
http://www.cncphotoalbum.com
CnC-List@cnc-list.com javascript:_e({}, 'cvml',
'CnC-List@cnc-list.com');
--
Joel
301 541 8551
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Re: Stus-List Folding/feathering Props
Sam, I have a two blade folding Martec prop that goes 7 kts forward and four kts directly sideways in reverse. Going with a Gori this winter. Harry Sent from my iPhone 6Beta On Oct 19, 2013, at 20:21, Sam Salter sam.c.sal...@gmail.com wrote: This winters project is a folding/feathering prop. I've just sent off inquiries to: Flexofold Max Prop Slipstream Anyone got any comments/observations/likes/dislikes. Any experience good or bad with any type of folding/feathering prop would be useful. Any other manufacturers recommended. Now is your chance to get in on a real sailing topic - folding/feathering props OR rum! sam :-) CC 26 Liquorice Ghost Lake Alberta ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
Re: Stus-List Folding/feathering Props
Sam I also have the 2 blade Martec and a 26. I have not found poor performance in reverse but I don't do it a bunch either. Can push just fine going forward. David Sent from Samsung Mobile Original message From: Harry Hallgring hhallgr...@icloud.com Date: 10-20-2013 5:00 PM (GMT-07:00) To: cnc-list@cnc-list.com Subject: Re: Stus-List Folding/feathering Props Sam, I have a two blade folding Martec prop that goes 7 kts forward and four kts directly sideways in reverse. Going with a Gori this winter. Harry Sent from my iPhone 6Beta On Oct 19, 2013, at 20:21, Sam Salter sam.c.sal...@gmail.com wrote: This winters project is a folding/feathering prop. I've just sent off inquiries to: Flexofold Max Prop Slipstream Anyone got any comments/observations/likes/dislikes. Any experience good or bad with any type of folding/feathering prop would be useful. Any other manufacturers recommended. Now is your chance to get in on a real sailing topic - folding/feathering props OR rum! sam :-) CC 26 Liquorice Ghost Lake Alberta ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
Re: Stus-List Folding/feathering Props
Sam, I have a two blade Flex I Fold, which goes nicely forwards and backwards and replaced a 2 blade non-geared Martec that went sideways in reverse and sometimes went forward if the blades opened together (even after rebuilding). The two do not compare. Tim Mojito CC 35-3 Branford, CT On Oct 20, 2013, at 7:10 PM, David Donnelly da...@gnuattitude.ca wrote: Sam I also have the 2 blade Martec and a 26. I have not found poor performance in reverse but I don't do it a bunch either. Can push just fine going forward. David Sent from Samsung Mobile Original message From: Harry Hallgring hhallgr...@icloud.com Date: 10-20-2013 5:00 PM (GMT-07:00) To: cnc-list@cnc-list.com Subject: Re: Stus-List Folding/feathering Props Sam, I have a two blade folding Martec prop that goes 7 kts forward and four kts directly sideways in reverse. Going with a Gori this winter. Harry Sent from my iPhone 6Beta On Oct 19, 2013, at 20:21, Sam Salter sam.c.sal...@gmail.com wrote: This winters project is a folding/feathering prop. I've just sent off inquiries to: Flexofold Max Prop Slipstream Anyone got any comments/observations/likes/dislikes. Any experience good or bad with any type of folding/feathering prop would be useful. Any other manufacturers recommended. Now is your chance to get in on a real sailing topic - folding/feathering props OR rum! sam :-) CC 26 Liquorice Ghost Lake Alberta ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
Re: Stus-List Folding/feathering Props
I have used MAX feathering props on three different boats, the smallest was 30'. On a CC 26, a MAX prop may be a little overkill unless you plan to motor into wind, sea, and or current much of the time. For smaller short distance racing and cruising a geared folding may be the cost vs. performance sweet spot. For Calypso, at 24,000 lbs displacement with yearly trips that expose us to offshore type conditions our 3 blade MAX prop has been great. If we were to drop the cruiser from cruiser/racer we would switch to a two blade MAX prop. The MAX props do cost more and require maintenance but for me the performance has been worth it. Martin Calypso 1971 CC 43 Seattle From: CnC-List [cnc-list-boun...@cnc-list.com] on behalf of Rich Knowles [r...@sailpower.ca] Sent: Sunday, October 20, 2013 2:00 PM To: cnc-list@cnc-list.com Subject: Re: Stus-List Folding/feathering Props Love my 3 blade MaxProp. However, not sure if a geared folder might not be more sensible for a 26' boat. Leave more $ for rum. Rich On Oct 19, 2013, at 21:21, Sam Salter sam.c.sal...@gmail.commailto:sam.c.sal...@gmail.com wrote: This winters project is a folding/feathering prop. I've just sent off inquiries to: Flexofold Max Prop Slipstream Anyone got any comments/observations/likes/dislikes. Any experience good or bad with any type of folding/feathering prop would be useful. Any other manufacturers recommended. Now is your chance to get in on a real sailing topic - folding/feathering props OR rum! sam :-) CC 26 Liquorice Ghost Lake Alberta ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.commailto:CnC-List@cnc-list.com ___ This List is provided by the CC Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
