I just got this from Jim Faughn, who apparently is in port today. I copied
him on the original email, and this is his feedback.
> The tail wheel spring I had was actually one made from a mold that was Dan
> Diehl's idea for something else to sell. However, it was so labor
> intensive
> and obvi
> > fixed it more than we did on the ramp because I saw it as a "merit badge"
I should imagine that a carbon spring is "quite a bit of work", somewhat more
than taking a length of junk yard spring steel, cutting and drilling a couple
of holes in it.
A piece of steel 12 x 1.5 x .25 will weigh ju
Hi Mark,
Do you have a current email address for Jim? I have had two returns when
sending to the email address on his website.
Thanks
Larry H.
Jim Faughn's plane has a fiberglass tailwheel rod for a spring.
Speaking of Jim, check out his incredible cruise pictures from his latest
sailing adve
I have an engineers report here which tells me a cf tail spring about 6mm
in thickness is 33 per cent less stiff than a steel spring, but if 12mm thick
it is 5 times the stifness of a metal spring and about half the weight, so I
was thinking that about 8 mm in thickness will do the job, an
Chris,
I never heard of anyone doing that. My thought is that it would be brittle.
Please let us know how it works out, as saving weight back there is very
good for getting the CG forward.
See N64KR at http://KRBuilder.org - Then click on the pics
See you at the 2007 - KR Gathering
There is a
I built a carbon fiber tail spring for my KR-2 back in 1985 or so. It
weighed about 1/4 what the steel part weighed. It was 26 layers of
bi-directional
cloth, with epoxy resin, layed up over a two-by-four cut with a bandsaw to
the desired bend. ( I put an "s" bend in the tailspring to ra
Bill,
If you still have the spring it might be worth the effort to reheat it
to 200F. and re compress it in your wooden jig. Just a thought.
Mick
m...@dcn2.net
zorc...@aol.com wrote:
>
>
>I built a carbon fiber tail spring for my KR-2 back in 1985 or so. It
>weighed about 1/4 what the stee
I don't know much about carbon fiber, but I have
routinely installed composite (fiberglass) rear mono
springs on early model Corvette's without problems.
I suppose something similar could be developed for an
airplane.
Scott
--- Dan Heath wrote:
> Chris,
>
> I never heard of anyone doing that
Reply about tailwheel thickness using cf.
I built my tailwheel spring of about 12 inches using 28 layers
of 6 oz. cloth alternating unidirectional and bidirectional cloth,
app. 8mm thick. It has worked great. I land on grass alot and
it has taken the abuse well.
Randy Clark
rrcl...@carrollsweb.
I hope someone hasn't suggested this as I haven't been reading all posts.
If you want the tail spring to be composite, why not make it out of round
fiberglass rod? Those are easily found in aircraft supply catalogs or through
industrial suppliers. It could be set up somewhat like a Quickie
t [mailto:krnet-boun...@mylist.net]On
Behalf Of Randolph R. Clark
Sent: Sunday, February 11, 2007 9:14 PM
To: KRnet
Subject: Re: KR> carbon fibre tail spring
Reply about tailwheel thickness using cf.
I built my tailwheel spring of about 12 inches using 28 layers
of 6 oz. cloth alternating unidirect
A while back we were talking about this on the VP list I think and someone
was talking about a
some small cheap car equipped with composite rear leaf springs. From the
way he talked they would be cheap and easy to come by and had more than
strong enough. I think he cut them at the arch and bol
Jim Faughn's plane has a fiberglass tailwheel rod for a spring. These were
popular back in the early days. They were about 3/4" diameter and made of
unidirectional fiberglass rod from the little flag poles that they use on a
golf course to show you where the hole is (I'm sure there's a name fo
-
From: rsb...@hotmail.com
To: kr...@mylist.net
Sent: Mon, 12 Feb 2007 6:44 AM
Subject: Re: KR> carbon fibre tail spring
A while back we were talking about this on the VP list I think and someone was
talking about a
some small cheap car equipped with composite rear leaf springs. From the way
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