[rebel-builders] Taking the Landing Gear Thread a Different Direction
Posted: Sun Feb 19, 2012 6:24 pm
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:
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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:A fellow Rebel owner was mentioning to me the fact that there is supposed
to be a doubler (a second square tube) inside the main gear leg. I have
kit #207, purchased originally in 1992. I looked in my 1998 version of
the manual and it lists this part. My kit inventory list doesn't list
it. Does anyone have info on this? Should I be finding a tube to put
inside mine? Sounds like I need to but I haven't seen a "doubler"
mentioned on this site that I can recall. Anyone? Craig
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