You wouldn't expect crushing. If the wood is crushed, you've over tightened the
bolts.
I'd like to point out that the metrinch is a particularly useless unit of
measurement. Inches and fractions is archiac but manageable. Metric is robust
and intuitive. Inches with decimal places is just asking
Damn spell check...snugging...the standard torque is around 20 inch
pounds...if you go that high you will have some deformation...plus you will
probably need to retorque after a little time.
https://sites.google.com/site/mykr2stretch/
https://sites.google.com/site/mykr2stretch/parts-for-sale
On No
At 01:47 PM 11/13/2013, you wrote:
>I have one been using 4 inch wrenches and snugglingit happens.
+++
Jon,
Just who were you snuggling with using a 4 inch wrench and what
really happened? Second thought, lets not go there.
Rulle # 3 in
Are you sure about that? Three blade wooden props are a very rare item.
John Martindale
29 Jane Circuit
Toormina NSW 2452
Australia
ph:61 2 6658 4767
m:0403 432179
email:john_martindale at bigpond.com
web site: http://john-martindale-kr2.zxq.net
-Original Message-
From: KRnet [mailto:krn
I agree with Larry, or add some thin spruce instead of ply.
BUT
I outer spars on my KR2SS I picked up have ply attached to the outer spar
caps to make the difference, I am till thinking of a better idea
Phil Matheson
--
Rather than add the softer ply under the
I have one been using 4 inch wrenches and snugglingit happens.
https://sites.google.com/site/mykr2stretch/
https://sites.google.com/site/mykr2stretch/parts-for-sale
On Nov 13, 2013 1:45 PM, "jon kimmel" wrote:
> After thinking a little more about it I have a theory...crushing was taken
> int
After thinking a little more about it I have a theory...crushing was taken
into account because the original kr didn't have a web on outboard...then
the kr2 had a 12" web...then the kr2s had a full web. 2 webs would crush
more than 1 so a little interference was built in...it just wasn't
corrected
The as5048 section shows 2.16 for in board. Add two 3/32 webs and you get
2.3475. I measured mine and they came up to closer to 2.39...but the
distance between the wafs was closer to 2.30...I had a little crushing.
With the inboard and outboard thickness per plans the interference would be
just 1
I get blank emails regularly too.
Marc's email from 2 hours ago came through blank, apart from the standard
"KRnet" footer.
On Wed, Nov 13, 2013 at 11:44 AM, Larry&Sallie Flesner wrote:
> At 01:52 PM 11/12/2013, you wrote:
>
>> I'm leaving this one blank intentionally. (But bolding the text a
Worked for me.
Sent from my HTC One XL on the Telstra 4G network
- Reply message -
From: "Mark Langford"
To: "KRnet"
Subject: KR> Fw: waf
List-Post: krnet@list.krnet.org
Date: Wed, Nov 13, 2013 11:11 AM
See below from Rob Schmitt. I'm fooling around with list settings. If this
mak
Where I'm getting my measurements from are from the AS5045 drawings. Not from
the plans. The fwd center spar caps are 2.16". Add the web material you come
up with 2.253". This would be the same for the outboard spar also. The AS5045
outboard spar is .22" wider. So I think it would be best
Don't assume that the nominal pitches of each builder are equivalent! 52 from
"A" could be 48 from "B". Also, Sterba can only repitch downward, never up.
Bias high. Prop pitch is a compromise between takeoff /climb performace, and
cruise speed/economy. Peter
Correct, I think I put in one that went from the spar from top to bottom and
plus 1 inch longer than the wafs.
> On Nov 12, 2013, at 8:49 PM, PPaulVsk at aol.com wrote:
>
> Just add the plywood under the fittings, Right?
>
> Paul Visk
> Belleville Il
> 618-406-4705
>
>
> In a message dated
Ken had one and it did not work out. He had it mounted
as a Plaque and gave it away as a Prize, Virg
( See pic sent to Larry )
On 11/13/2013 2:57 AM, John Martindale wrote:
> Are you sure about that? Three blade wooden props are a very rare item.
>
> John Martindale
> 29 Jan
That is interesting idea, In Australia the CASA (Civil Aviation Safety
Authority) never liked the one bolt per each WAF( four bolts at side) I only
have two 3/8 bolts a side with a thick walled 4130 spacer and the lot is
locked up together. They also stopped us using the last two inches of the
KR Newsletter #50 Aug. 1979 Talked about 3 blade update & Ken Rand
production of 100 3 blade props to be realeased june that year
On Nov 13, 2013 9:14 AM, "Virgil N.Salisbury"
wrote:
>
> Ken had one and it did not work out. He had it mounted
> as a Plaque and gave it away as
Thin spruce is NOT the way to go. Plywood is stronger. 2-3 mm spruce would
be too easy to compress and only slightly better than paper or cardboard
and as equally moisture.absorbent.
Subject: Re: KR> Fw: waf
, or add some thin spruce instead of ply.
__
I don't know that we really need to shim anything, although shimming out
the center WAFs would be one way to do it. The spars built per plans leave
a .21875" gap, and you still need to accommodate a pair of 1/8" wing attach
fittings, for a total of .25", so we are short .031". So either the C
Also VW's don't like 3 blades. It has to do with the vibration harmonics on
the crankshaft and causing broken crankshafts.
John Melvin
5504 Fairbanks Dr.
El Paso, TX 79924
In a message dated 11/13/2013 12:57:51 A.M. Mountain Standard Time,
john_martindale at bigpond.com writes:
Are you
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