Re: Stus-List Gear, shaft positin, transmission, folding ---- RE: (no subject)
For me it was a priority to buy a nice prop. I was loosing sleep over the drag of my old fixed prop to my boat that i wanted to race, and was also going crazy earing the prop free spin underway. I had to do something and choose a Flexofold that was cheaper than a maxprop. My flexofold will spin in neutral, so i put it in reverse knowing i am not causing any arm to the transmission. I prefer to spend my money on nice sails that i can see and enjoy, but a good prop is also important in my opinion. Bruno Lachance Becassine, C 33 mkII New-Richmond, Qc > To: cnc-list@cnc-list.com > Date: Thu, 9 Jun 2016 12:47:34 +0000 > Subject: Stus-List Gear, shaft positin, transmission, folding RE: (no > subject) > From: cnc-list@cnc-list.com > CC: mike.h...@impgroup.com > > The two things I take away from this are that 1. YES - a geared folding prop > is much better than a floppy Martec folding prop and that 2. a Martec folding > prop should have shaft aligned such that the blades are horizontal so that > they stay folded esp in light wind. > > So if the shaft is aligned that likely means not in neutral. Back to > original argument > > Persistence has an oversized engine. 3GM30F where all C and Frers 33 > come stock with 2GM20F. Behind the transmission there is BARELY sufficient > distance on shaft for the dripless shaft seal. The coupling would have to be > marked in order to know the shaft was aligned. This is all well and good but > which crew member am I going to convince to climb inside the cockpit locker > (after removing any contents), unfasten the fabric separator between locker > and engine compartment, wiggle in a contorted position to get access to the > coupler and shaft? It is theoretically possible for us to align shaft but in > practicality is impossible. > > Therefore the only real conclusion is to lose the Martec and obtain a > Flex-O-Fold > > Mike > Persistence > Halifax > > -Original Message- > From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Jake > Brodersen via CnC-List > Sent: Wednesday, June 08, 2016 7:46 PM > To: cnc-list@cnc-list.com > Cc: Jake Brodersen > Subject: Re: Stus-List (no subject) > > Tom, > > I put mine in reverse to stop the prop, then position the shaft so the blades > are folded. Then I put it back into reverse to lock them in place. > It's easy, especially if you mark the shaft position when the boat is out of > the water. > > Jake > > > Jake Brodersen > C 35 Mk-III "Midnight Mistress" > Hampton VA > > > ___ > > This list is supported by the generous donations of our members. If you like > what we do, please help us pay for our costs by donating. All Contributions > are greatly appreciated! ___ This list is supported by the generous donations of our members. If you like what we do, please help us pay for our costs by donating. All Contributions are greatly appreciated!
Re: Stus-List Gear, shaft positin, transmission, folding ---- RE: (no subject)
Mike, I will get back to you tonight with the price of my Flexofold 3 blades. It was not chead and i remebered i had to pay a ridiculously high custom clearance fee to UPS, I hate them since. I was convinced to go 3 blades after reading a lot about prop balance and vibration. It is more expensive, but i went for it and i am very happy. I have less vibration than with my old fixed two blades. It stops the boat quickly in reverse with minimal prop walk and i achieve target speed at low rpm, wich is good on fuel but i know it can lead to carbon buildup. To remediate that i do push the engine sometime but over 2800- 2900 the engine is loaded and the black smoke comes out. So instead i push it in neutral at the dock. I remember some recommandations from Yanmar on this. something like: high revs for a moment to burn everything and then iddle to cool down the engine and then shut it off. I do still think that my prop is bit too much for my small engine. And if i had to buy another i might go with a two blades instead because everybody seems satisfied with it. My prop would be perfect for your 3 GMF! ;) Bruno. > To: cnc-list@cnc-list.com > Date: Thu, 9 Jun 2016 12:47:34 +0000 > Subject: Stus-List Gear, shaft positin, transmission, folding RE: (no > subject) > From: cnc-list@cnc-list.com > CC: mike.h...@impgroup.com > > The two things I take away from this are that 1. YES - a geared folding prop > is much better than a floppy Martec folding prop and that 2. a Martec folding > prop should have shaft aligned such that the blades are horizontal so that > they stay folded esp in light wind. > > So if the shaft is aligned that likely means not in neutral. Back to > original argument > > Persistence has an oversized engine. 3GM30F where all C and Frers 33 > come stock with 2GM20F. Behind the transmission there is BARELY sufficient > distance on shaft for the dripless shaft seal. The coupling would have to be > marked in order to know the shaft was aligned. This is all well and good but > which crew member am I going to convince to climb inside the cockpit locker > (after removing any contents), unfasten the fabric separator between locker > and engine compartment, wiggle in a contorted position to get access to the > coupler and shaft? It is theoretically possible for us to align shaft but in > practicality is impossible. > > Therefore the only real conclusion is to lose the Martec and obtain a > Flex-O-Fold > > Mike > Persistence > Halifax > > -Original Message- > From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Jake > Brodersen via CnC-List > Sent: Wednesday, June 08, 2016 7:46 PM > To: cnc-list@cnc-list.com > Cc: Jake Brodersen > Subject: Re: Stus-List (no subject) > > Tom, > > I put mine in reverse to stop the prop, then position the shaft so the blades > are folded. Then I put it back into reverse to lock them in place. > It's easy, especially if you mark the shaft position when the boat is out of > the water. > > Jake > > > Jake Brodersen > C 35 Mk-III "Midnight Mistress" > Hampton VA > > > ___ > > This list is supported by the generous donations of our members. If you like > what we do, please help us pay for our costs by donating. All Contributions > are greatly appreciated! ___ This list is supported by the generous donations of our members. If you like what we do, please help us pay for our costs by donating. All Contributions are greatly appreciated!
