The Murphy Builders Site

Hi Ken & Craig I am Brian with Rebel No.274R in England I really do agree
with "not strengthening"the U.C. legs I have just rebuilt mine after being
ripped off completely in a corn field with no damage to fuselage fittings
at all so no expensive hanger rebuild just made new U/C in garden shed at
home, if that is a design feature then well done Darryl



________________________________
From: Ken <klehman@albedo.net>
To: rebel-builders@dcsol.com
Sent: Wed, 30 June, 2010 13:27:48
Subject: Re: [rebel-builders] Taking the Landing Gear Thread a Different
Direction

Craig
That sounds correct. The Mohr fittings replaced the short top inner tube
insert. I think somebody did insert tubes part way up at the bottom but
that is not common AFAIK. The bent legs that I've seen bend in the
bottom half. A bend is no big deal compared to a stronger part causing
damage to the fuselage instead of bending the leg but I do not know
where the optimum point is. A partial tube at the bottom will usually
increase stresses at the point that the tube ends which may not be a
good thing. Inserting a tube also risks that it will gall and get
permanently stuck part way in. A round full length tube insert might be
better if you decide to do this. A larger strut might be a better choice
if someone is determined to strengthen this part, but I have doubts
whether strengthening it is a good idea...
Ken

craig wrote:

Hmm...my legs are 1.25". My inventory lists the upgrade. I could have
missed the short tubes, I guess. The Gordon Mohr fittings I used are 1"
and
they extend down the top of the leg about 4". The lower part is without
reinforcement. After I hear from some of the "SME's" here on the list I
may
have to retrofit the lower ends with some tubing, not a big job. though.
Thanks Ken


----- Original Message -----
From: "Ken" <klehman@albedo.net>
To: <rebel-builders@dcsol.com>
Sent: Tuesday, June 29, 2010 3:36 PM
Subject: Re: [rebel-builders] Taking the Landing Gear Thread a Different
Direction

Never heard of that Craig??

However the upgrade to 1650 lb did involve increasing the main gear leg
to 1.25" square tube and inserting short 1" square tube pieces in the
top end to match the width of the fuselage brackets.

craig wrote:

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