Orma wrote:
> I'm impressed with the power. I'll be talking to Ed Struba soon to have a
> new prop made. Is there bigger then my 52x52 in the bank that I could
try?
Orma, if you'll wait until the Gathering, you can try a Sensenich 54x54 that
I'll have on my KR. Jones may have one also. I have
I wrote:
> Orma, if you'll wait until the Gathering, you can try a Sensenich 54x54
that
> I'll have on my KR.
Wrongo though. Mine's an SAE1 pattern, and yours is probably the typical VW
pattern. The 52x60 Sterba is drilled for both though, so that one would
still work...
Mark Langford, Huntsvi
Hi, the size of a prop is given as 2 numbers diameter/pitch.
In terms of maximum speed, the pitch is the important number a one inch
pitch would give 2.84 mph, so a 49in pitch prop would give a max speed of
139 mph at 3000 revs and 64in pitch gives 181 mph at 3000 revs.
VWs are normally limited t
Thanks Pedro! You one pretty smart fellow
- Original Message -
From:
To:
Sent: Wednesday, December 14, 2005 10:55 AM
Subject: KR> Props
Hi, the size of a prop is given as 2 numbers diameter/pitch.
In terms of maximum speed, the pitch is the important number a one inch
pitch wo
Wednesday, December 14, 2005 11:55 AM
Subject: KR> Props
> Hi, the size of a prop is given as 2 numbers diameter/pitch.
>
> In terms of maximum speed, the pitch is the important number a one inch
> pitch would give 2.84 mph, so a 49in pitch prop would give a max speed of
> 1
on of the prop. A smaller prop on a P51 gives it 400 Mph or
> 14.08
> ft. per revolution. Go figure.
> - Original Message -
> From:
> To:
> Sent: Wednesday, December 14, 2005 11:55 AM
> Subject: KR> Props
>
>
> > Hi, the size of a prop is give
You have too much prop when the engine cannot make the rated rpm static, or
perform to the specifications in flight for cruise/top end.
You have too little prop when you cannot make the lowest advertised cruise
speed or top speed with the engine running at or very near the redline. You can
also
Buy a 52 x 42 to 44 prop for climb prop. I used those
pitch numbers and
got
1000 fpmclimb solo and 500 fpm better max weight from
a 1915 cc VWengine, before changing to a Corvair Max
speed was 145 mph. Now if you
want
to have several different props available in one, do
as I did and order
a
Warp
(Buy a 52 x 42 to 44 prop for climb prop. I used
those pitch numbers and
got
1000 fpmclimb solo and 500 fpm better max weight from
a 1915 cc VWengine, before changing to a Corvair Max
speed was 145 mph. Now if you
want
to have several different props available in one, do
as I did and order
a
W
Netheads,
For what it is worth, I have come across a site about props, one comment there
was that the ideal prop speed is, a tip speed of 680 Ft/sec.
This may help in the selection of the correct prop.
Robin
New Zealand
r.macdon...@clear.net.nz
d
Sent: Wednesday, August 16, 2006 6:42 PM
To: KRnet
Subject: KR> Props
Netheads,
For what it is worth, I have come across a site about props, one comment
there was that the ideal prop speed is, a tip speed of 680 Ft/sec.
This may help in the selection of the correct prop.
Robin
New Zealand
Unless I'm mistaken, and I've known to be, but as I remember from
college the speed of sound was 1127 fps or something along the lines of
723 mph at mean sea level with the speeds of course decreasing as you
progress to lower temperatures. The speed of sound was roughly four
times that at the densi
How come Ed Sterba say's 900 ft per second is the normal maximum for a
(wood) propeller. http://www.greatplainsas.com/edrules.html
Dan F.
- Original Message -
From: "Colin Rainey"
To: "KRnet"
Sent: Wednesday, August 16, 2006 8:55 PM
Subject: RE: KR> Pr
Netheads,
I guessed it would open a can of worms.
The site I looked at gave an ideal speed of 680 ft/sec, & it looks as though
you should never exceed 900 ft/sec.
So this should give anyone a rough guide of what the RPM should be for a given
diameter. If the RPM is out you should change the
Willie said : Today was my 2nd flight with "Shreg" (the green KR2). This
time I was not
so nervous.
Congrats on number two!
Alot of builders have played with props, and there has been much discussion
about pitch and length. The archives are filled with them. And as always
EVERYONE has an opinion
You can find the book at http://speedwitheconomy.com $24.95 + shipping.
- Original Message -
From: "Colin Rainey"
To: "KRnet"
Sent: Saturday, November 04, 2006 2:54 PM
Subject: KR> Props
> Willie said : Today was my 2nd flight with "Shreg" (t
Hi Guys,
I am a new member of Krnet and the proud new owner of a much modified Kr2
Built and based here in the U.K. since 1992 see pic @ www.g-info.co.uk and
type in the uk registration G-BTGD.
It is quite different from all the pics I have found on the net including
Spanish S.American and Austr
Mark Gorlov wrote:
> I am a new member of Krnet and the proud new owner of a much modified Kr2
> Built and based here in the U.K. since 1992 see pic @ www.g-info.co.uk and
> type in the uk registration G-BTGD.
Welcome aboard. Try
http://www.caa.co.uk/application.aspx?categoryid=60&pagetype=65&
Mark Gorlov wrote:
> Hi Guys,
> I am a new member of Krnet and the proud new owner of a much modified Kr2
> Built and based here in the U.K. since 1992 see pic @ www.g-info.co.uk an
>
Hi Mark,
The easiest way is to go with the approved props on the PFA eng web site:-
http://www.pfa.org.uk/Engi
At 01:07 PM 12/4/2006, you wrote:
>Hi Guys,
>I am a new member of Krnet and the proud new owner of a much modified Kr2
>Built and based here in the U.K. since 1992
>Mark Gorlov
Mark,
I looked up the registration on your new bird and it
Hi,
After seeing Mark Gorlov's question. I got thinking about my prop, and
I got talking to a colleague at work who flies G-UTSI . He has a Warp
drive ground abjustable prop - which the UK PFA have approved.
Have any of you guys got experience with these props ? I would like to
get a wider vi
No! Not on a V W engine. I already checked into it.
- Original Message -
From: "Pete Diffey"
To: "KRnet"
Sent: Wednesday, December 06, 2006 7:28 PM
Subject: Re: KR> props
> Hi,
>
> After seeing Mark Gorlov's question. I got thinking abou
Myron,
Could you elaborate on why not on a VW engine?
Thanks,
Solly
"Myron (Dan) Freeman" wrote:
No! Not on a V W engine. I already checked into it.
- Original Message -
From: "Pete Diffey"
To: "KRnet"
Sent: Wednesday, December 06, 2006 7:28 PM
- Original Message -
From: "Pete Diffey"
To: "KRnet"
Sent: Wednesday, December 06, 2006 7:28 PM
Subject: Re: KR> props
> Hi,
>
> After seeing Mark Gorlov's question. I got thinking about my prop, and
> I got talking to a colleague at work who flies
gine. I already checked into it.
- Original Message -
From: "Pete Diffey"
To: "KRnet"
Sent: Wednesday, December 06, 2006 7:28 PM
Subject: Re: KR> props
> Hi,
>
> After seeing Mark Gorlov's question. I got thinking about my prop, and
> I got tal
uot;
Sent: Thursday, December 07, 2006 1:19 PM
Subject: Re: KR> props
> Myron,
> Could you elaborate on why not on a VW engine?
> Thanks,
> Solly
>
> "Myron (Dan) Freeman" wrote:
> No! Not on a V W engine. I already checked into it.
>
> - Original
Stay away.It will not perfome with the KR runs out at
about 130 mph. I tried Warp and Ivo with no luck. Ed
Sturba had the best prop for the KR at the time. I am
going to use one of his prop for the KR I have know.
--- Pete Diffey wrote:
> Hi,
>
> After seeing Mark Gorlov's question. I got thin
For what its worth, I am having very good luck with a Prince Prop on
a VW.
Jeff
On Dec 7, 2006, at 6:48 PM, Randy Smith wrote:
> Stay away.It will not perfome with the KR runs out at
> about 130 mph. I tried Warp and Ivo with no luck. Ed
> Sturba had the best prop for the KR at the time. I am
hi Group,
I had tried several wood propos on a Super Pulsar 100 with an IO240 up front.
the Sensenich was the best bang for the money. Give them a call. They were
alwasy very helpful.
Solly
Randy Smith wrote:
Stay away.It will not perfome with the KR runs out at
about 130 mph. I tried
Solly Melyon wrote:
> I had tried several wood propos on a Super Pulsar 100 with an IO240 up
> front. the Sensenich was the best bang for the money.
Did you try a Sterba? Sterba sells props for around $400 (I believe it is)
for the KR, and they work well. Sensenich sells their KR prop for a
...@mylist.net]On
Behalf Of Mark Langford
Sent: Thursday, December 07, 2006 10:59 PM
To: KRnet
Subject: Re: KR> props
Solly Melyon wrote:
> I had tried several wood propos on a Super Pulsar 100 with an IO240 up
> front. the Sensenich was the best bang for the money.
Did you try a Sterba
Brian Kraut wrote:
> And you will never find a better person to deal with than Ed Sterba. No
> one
> else is going to repitch and refinish your prop for free if you want to
> change it.
I talked to Ed today. He was in the middle of measuring my prop and
replicating it onto Les Laidlaw's prop,
Hello mark,
I do not argue with facts. Thanks for the input
Solly
Mark Langford wrote:
Solly Melyon wrote:
> I had tried several wood propos on a Super Pulsar 100 with an IO240 up
> front. the Sensenich was the best bang for the money.
Did you try a Sterba? Sterba sells props for around
Yep, Sturba makes good props. There like a piece of fine furniture.
- Original Message -
From: "Randy Smith"
To: "KRnet"
Sent: Thursday, December 07, 2006 7:48 PM
Subject: Re: KR> props
> Stay away.It will not perfome with the KR runs out at
> about 130 m
met ken Jones today, he came zooming into kdfi with about 15 min to spare
before heading back. Nice guy, I noticed he had a 3 blade prop, I have a wood
prop that reads 52x46.how much would I gain with a slimmer 3 blade prop over
this wood prop
> I have a wood prop that reads 52x46.how much would I gain
>with a slimmer 3 blade prop over this wood prop
>___
Nothing if the prop you have is pitched right for your
engine and airplane. Your two blade should be more
efficient and faster in cruise if , li
I agree with Larry. The 2-blade should be more efficient if it is pitched
right. However, one benefit of the Warp 3-blade is that, if you have the
time and patience, you can adjust it until it is pitched right (overall) for
whatever you want, be it climb, cruise or whatever. And if you make s
Theoretically a 3 bladed prop that is pitched the same as a 2 bladed (same
manufacturer is best) and is the same disc area of length, the 3 bladed
should make approximately 17% more thrust than the 2 bladed, or behave like
the same 2 bladed prop but 17% longer. I cannot recall the author's name
rig
At 11:46 PM 12/19/2006, you wrote:
>1) Multi-bladed props climb better than 2 bladed props, as a rule.
++=
But are less efficient in cruise, as a rule.
Larry Flesner
> At 11:46 PM 12/19/2006, you wrote:
>>1) Multi-bladed props climb better than 2 bladed props, as a rule.
>
> ++=
>
> But are less efficient in cruise, as a rule.
>
why should that be ?
Multiblade props have a couple of advantages, better groun
Stay with the 52 x 46 dont you have an 1835 vw
Lee
- Original Message -
From: "Rick and Pam"
To: "KRnet"
Sent: Tuesday, December 19, 2006 5:31 PM
Subject: KR> props
> met ken Jones today, he came zooming into kdfi with about 15 min to spare
>
I am not sure what book you refer to but everything
being equal a 2 bladed prop will perform better than a
3 bladed prop. A prop disturbs the air in front of it
as it comes around and a 3 bladed prop disturbs more
air. The perfect prop would only have one blade. The
three bladed prop is quieter and
;s
84"?
Fred Johnson
Reno, NV.
-Original Message-
From: krnet-bounces+fred=renotruss@mylist.net
[mailto:krnet-bounces+fred=renotruss@mylist.net] On Behalf Of Randy
Smith
Sent: Wednesday, December 20, 2006 3:02 PM
To: KRnet
Subject: Re: KR> Props
I am not sure what book you
Fred said:
"If a three bladed prop is so much better
than two ..."
Here is my point: EVERY turbo prop engine I have ever seen is a 4 bladed
prop. AND they are constant speed with beta mode (most of them allowing
reverse thrust). So if 2 blades was THAT much better, than they would not go
to the e
Man! That's what I love about the "net," if I'm wrong about something
then someone out there will have the info to prove it usually. My humble
apologies Colin.
Perhaps you are right about the VW not making enough torque to swing a
three blade, as you stated the trikes are using engines making much
I don't know if my thinking is flawed here but out of the dark recesses of my
brain I seem to remember a 1 bladed prop from WW2 that the Germans were playing
with, with a counterweight for balance. It seems to me that you can argue the
points of multiple blades versus 2 blades seems to me to be
ith a prop engineer to get their opinion on this whole thing.
Fred Johnson
Reno, NV
-Original Message-
From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net] On
Behalf Of Don Chisholm
Sent: Thursday, December 21, 2006 9:53 AM
To: KRnet
Subject: Re: KR> Props
I don't know
For what it's worth, it would seem to me that as the dia.
increases so will the area within it. At some point there has to be a breakover
point where it is better to have another blade. As the dia. increases so is the
area of air being acted upon. There will be a given amount of t
I remember a photo of a plane (bi-plane w/ radial?) from the '30's with a
single blade prop.; and the Heller "Verti-Jet" helicopter from the late '40's
or early '50's has a single blade tail rotor. It has small pulse jets on the
tips of the main rotor blades, so the tail rotor is for directiona
I was always told the 3 was for show and 2 for go. But
Ron Slender ( VW Engines Aust)rang me the other night and said they have
been testing a new Bolly 3 blade on they RG2000 and it out climbed, out
cruised, and reduced the take off distance quite considerably by ONLY
replacing the Prop.
Go f
thats correct I have n 1835 .The 52x46 just looks small I guess
- Original Message -
From: "Lee Van Dyke"
To: "KRnet"
Sent: Wednesday, December 20, 2006 10:14 AM
Subject: Re: KR> props
> Stay with the 52 x 46 dont you have an 1835 vw
>
&
If you ask Steve Bennett from G/P he says that a 52 x 44 is the perfect fit
the engine.
Lee
- Original Message -
From: "Rick / Pam"
To: "KRnet"
Sent: Thursday, December 21, 2006 7:14 PM
Subject: Re: KR> props
> thats correct I have n 1835 .The 52x4
Single blade props are also popular on models, particularly motorized
sailplanes and indoor models where every bit of efficiency is needed.
Don't have time to get into a debate on it, but all other things being
equal, the less blades the more efficient. More blades come into play
usually when the
ginal Message -
From: "Brian Kraut"
To: "KRnet"
Sent: Thursday, December 21, 2006 10:53 PM
Subject: RE: KR>Props
> Single blade props are also popular on models, particularly motorized
> sailplanes and indoor models where every bit of efficiency is needed.
>
> Do
Does anyone run an adjustable IVO prop on his KR?
Bill W.
Bill, With what engine??
Pat
-Original Message-
From: ol' weirdo via KRnet
Sent: Monday, May 12, 2014 8:44 AM
To: krnet at list.krnet.org
Subject: KR> PROPS
Does anyone run an adjustable IVO prop on his KR?
Bill W.
___
Search t
The question re Props was meant to be an opener. I suppose at the bottom of
the page it doesn't matter which engine. That being said, a friend had
crankshaft breakage of his VW-based engine when he installed a thee bladed
prop. I don't know the make.
Bill W.
The question re Props was meant to be an opener. I suppose at the bottom of
the page it doesn't matter which engine. That being said, a friend had
--
The question of 3 a blade.
I have a ground adj. 3 Bolly, fantastic, but I do not now about the IVO prop
VW's don't seem to like 3 blades.
--
You are correct, BUT my fault for NOT saying, I have a type 4 VW with belt
drive on the flywheel end.
Phil
___
Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search.
To UNsub
There's been mention lately of ground adjustable props.
If you've got an O-200 a CS prop is the cat's meow but for
VW.Revmaster-powered KR's I would suggest a variable pitch prop is
completely unnecessary. My first KR had a Revmaster 2100 with the Maloof
CS prop. The controller never did work v
Thanks for some good info, Mike. I had suspected some of this and now
you have put some hard numbers on this issue.
Chris
On 2/2/2015 4:56 PM, Mike Stirewalt via KRnet wrote:
> There's been mention lately of ground adjustable props.
>
ewsletter archives.
To: krnet at list.krnet.org
List-Post: krnet@list.krnet.org
Date: Mon, 2 Feb 2015 15:56:12 -0800
Subject: KR> Props
From: krnet at list.krnet.org
There's been mention lately of ground adjustable props.
If you've got an O-200 a CS prop is the cat's meow but fo
Chris said,
" . . . the Warnke "almost constant speed prop" was popular IIRC. It had
the right flex tendencies to flatten out on takeoff then twist back to
its natural steeper pitch when forward airspeed was gained."
The Warnke was and is a gorgeous prop and is a treasure if you can find
one wit
>I'm after a 54-56" dia, SAE 1, 2" centre bored, anticlockwise, three blade
adjustable Warp Drive Prop for my Corvair 2700cc.
>I'm done with 2 blade wooden experiments now.
>57" dia x 60" pitch gave 2800 rpm static.
>57" dia x 56" pitch gave 3200 rpm static.
>54" dia x 56" pitch gave 3850 rpm stati
Larry, What RPM do you get static with your setup?
Thanks, Rick Wilson. rwdw2...@yahoo.com
--- larry flesner wrote:
> >I'm after a 54-56" dia, SAE 1, 2" centre bored,
> anticlockwise, three blade
> adjustable Warp Drive Prop for my Corvair 2700cc.
> >I'm done with 2 blade wooden experiments now.
>Larry, What RPM do you get static with your setup?
>Thanks, Rick Wilson.
++
Hard to say right now as I'm not sure how accurate my tach
is but it appears with the short test I've done so far that I'm
getting about 2350 to 2400. I hope that get me at le
Thanks Larry, That's roughly what I'm getting now with
my 0200 and 58" x 68 prop. I believe it will be about
right. Thanks again, Rick Wilson. rwdw2002yahoo.com
--- larry flesner wrote:
> >Larry, What RPM do you get static with your setup?
> >Thanks, Rick Wilson.
> ++
Hi All,
Well I've decided on the Subaru engine at last and have one on the way to me
with the H.O heads and cam!! Think I'll probably use a Sub 4 reduction drive
and twin Bing Carbs, Can someone tell me the model number that I'm after with
carbs? and I'll need advice on props, I have a friend
I'm also using a Subaru and am considering using twin carbs. Any suggestions
as to size would be welcome.
W.G.(Bill) KIRKLAND
wkirkl...@rogers.com
- Original Message -
From: "Gavin Donohoe"
To: "KR builders and pilots"
Sent: Sunday, October 19, 2003 8:06 PM
Sub
I have a Ted Hendrickson propeller which I acquired from Jerry Robinson of
Yakima,WA. It is drilled for the revmaster prop hub which is SAE1 with 4
3/8" dia bolt circle. Jerry flew his KR with this prop to Merced, Ca,
Oshkosh and at least one of the gatherings a few years back. The length &
pitch
Bud Midkiff wrote:
> Have any of you seen props drilled for more than one bolt
> pattern?
My prop is drilled for both VW and SAE1. I think it's not uncommon. Steve
Makish has all of his props drilled that way.
Mark Langford, Huntsville, AL
N56ML at hiwaay.net
see KR2S project N56ML at http://
://mysite.verizon.net/res18ums/index.html
- Original Message -
From: "Mark Langford"
To: "KRnet"
Sent: Wednesday, August 18, 2004 12:13 PM
Subject: Re: KR> Props
> Bud Midkiff wrote:
>
> > Have any of you seen props drilled for more than one bolt
> > patter
inal Message -
> From: "Mark Langford"
> To: "KRnet"
> Sent: Wednesday, August 18, 2004 12:13 PM
> Subject: Re: KR> Props
>
>
> > Bud Midkiff wrote:
> >
> > > Have any of you seen props drilled for more than one bolt
> > &g
Bud,
I use one of those wood boring spade bits with the little tangs sticking out
on the outside periphery to cut a nice round circle through the stainless.
To get it started I punch a little hole in it with an awl. Once the hole is
about half way through the firewall, I go to the other side and
I have a couple of VW props that I was thinking about having SAE-1 bolt
pattern drilled into them. This would allow us to test the prop on both VW
and Corvair. What are your thoughts on having two bolt patterns on the same
prop?
Mark Jones (N886MJ)
Wales, WI
What are your thoughts on having two bolt patterns on the same prop?
+
Stop stalling (and muttering about the weather)- go fly that airplane
and give us the KR grin. (and Ye Ha)
Hello Mark
The thought of having dual usage for props in the bank is a great
suggestion. In a recent discussion about that same subject, Sterba was
quoted as saying "He would add the second pattern to his props, but not to
other manufacturers props" Liability was the issue. Having said that,
Last weekend, I tried to install the wing gap seals so that I could fly but
my frozen fingers would not work. I am not in a heated hanger (bummer) and
the weather here is miserable temperature wise. Tomorrow, snow and a high of
30° and Sunday snow with a high of 14° is predicted. There is only one
Does anyone know of someone who will drill the SAE-1 pattern.
Mark Jones (N886MJ)
Wales, WI
-Original Message-
From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net]On
Behalf Of Orma
Hello Mark
The thought of having dual usage for props in the bank is a great
suggestion. In
To: "CorvAircraft (E-mail)" ; "KR Net (E-mail)"
Sent: Friday, December 17, 2004 7:31 AM
Subject: KR> Props
>I have a couple of VW props that I was thinking about having SAE-1 bolt
> pattern drilled into them. This would allow us to test the prop on both VW
> and Corva
quot;
To: "CorvAircraft (E-mail)" ; "KR Net (E-mail)"
Sent: Friday, December 17, 2004 7:31 AM
Subject: KR> Props
>I have a couple of VW props that I was thinking about having SAE-1 bolt
> pattern drilled into them. This would allow us to test the prop on bot
Prop Drilling
It worked well for me, and is not difficult. Mark carefully and drill
any locator boss holes first, then on through for the bolts. Make sure
you have a proper front plate to distribute the pressure.
Ron Freiberger
mail to rfreiberger at swfla.rr.com <- substitute an @ sign ;o)
Wha
Would that weaken the prop???, Virg
On Fri, 17 Dec 2004 17:51:05 +0200 "Stephen Jacobs"
writes:
> What are your thoughts on having two bolt patterns on the same prop?
>
> +
>
> Stop stalling (and muttering about the weather)- go fly that
> airplane
> and give us the KR
Give les Palmer a call. I know he has the patterns. He also has a very large
prop carving machine if anyone wants a prop coppied. His # is 972-241-4387
- Original Message -
From: "Mark Jones"
To: "'KRnet'"
Sent: Friday, December 17, 2004 10:34 AM
Sub
Mark Jones wrote:
> I have a couple of VW props that I was thinking about having SAE-1 bolt
> pattern drilled into them. This would allow us to test the prop on both VW
> and Corvair. What are your thoughts on having two bolt patterns on the
same
> prop?
I was going to do exactly that to big VW/s
Hello All,
Am looking for a prop for an O-200 engine. Just want one for testing
purposes. Still trying to figure out what prop/pitch to buy. In the
interim, I would like a loaner prop. Anybody have an old one that they're
not using? Let me borrow it and I'll give it back at the Gathering. Or
To all,
I’ve read the archives and have seen that the Ivoprop is not recommended for
the KR. I am finishing the build on a KR2 (not an S). It has a type 4 VW that
is 2100cc that will be fuel injected.
Has there been any further studies on this prop?
I emailed Ivoprop and told them I would b
Maybe they've improved them since I last had any contact/thoughts about
them but for whatever reason I've got a deep-seated dislike of the
Ivoprop. Weren't there a series of blade losses with them? I could be
all wet. Still don't like them.
Mike
KSEE
___
Well sounds like I'll not go for the Ivoprop. Now I'll research what pitch and
diameter to use.
Thanks for the replies.
Ralph D.
___
Search the KRnet Archives at https://www.mail-archive.com/krnet@list.krnet.org/.
Please see LIST RULES and KRnet in
Mark Langford said,
> "See http://www.krnet.org/kr-info.html for more info on which props
work
> with which KRs and engines. Sterba props tend to be numbered maybe 2"
> more than most other props, has been my experience, although Ed Sterba
> would disagree."
I've read that one can't, using stri
krnet-boun...@mylist.net
14/12/2005 18:55
Veuillez répondre à KRnet
Remis le : 14/12/2005 18:55
Pour :
cc :(ccc : Serge VIDAL/DNSA/SAGEM)
Objet : KR> Props
Hi, the size of a prop is given as 2 numbers diameter/pitch.
In terms of maximum speed, the pitch is the impor
Anyone out there refinish a prop? I have a mind to strip the finish from an
old wood prop and recoat with epoxy and paint. I hope the paint stripper
does not soften glue joints.
I have just completed a sad task, that is dismantling a KR 2, N8032X. It
was built by W R Faulkender (Hillsdale, Ind
Hi all, does any one have any advise on props, my kr2 has now had its second
test flight on it, The prop is a Tonini gt, its a 56*44 and i am only getting
2800 rpm on climb and 2900 at 140 Kts. (160 mph) Revmaster claims full power is
85 hp. @ 3200 rpm. the climb also appears to be lacking. engi
not as quick as lopping off a half inch at a time, I'll
confess...
Mark Langford, Harvest, AL
ML at N56ML.com
www.N56ML.com
-Original Message-
From: KRnet [mailto:krnet-bounces at list.krnet.org] On Behalf Of robert gill
Sent: Tuesday, February 25, 2014 4:32 AM
To: krnet at list.kr
Wooden props can be de-pitched. I would do this first before shortening. Peter
ll benefit by at least an
inch of diameter reduction also.
Original Message
Subject: KR> kr props
From: robert gill
List-Post: krnet@list.krnet.org
Date: Tue, February 25, 2014 3:32 am
To: "krnet at list.krnet.org"
Hi all, does any one have any advise on props,
52" is not too short for a VW - KR combination and much more simple than
re-pitching.
Dan Heath
> On Feb 25, 2014, at 9:42 AM, peter wrote:
>
> Wooden props can be de-pitched.
That R-2300 sure seems like an ideal engine for a KR - designed to get
it's power at lower RPM. This is ideal for a number of reasons. The
higher the RPM the more heat is generated from friction and heat, besides
being totally wasted energy, is the VW's worst enemy. I have a friend
who went thro
Each inch of diameter you take off will gain you 100 RPM. Minimum static
RPM on the ground, for a VW, is 2900.
On Tue, Feb 25, 2014 at 1:55 PM, Dan Heath wrote:
> 52" is not too short for a VW - KR combination and much more simple than
> re-pitching.
>
> Dan Heath
>
> > On Feb 25, 2014, at 9:4
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