Mike,
I bought and tested some astro van legs a couple of years back, and found them
too flexible to hold the weight of a Kr2 and a safety factor of 1.5.
Being shy of prop strike, I shelved the astro van legs and went another
direction. A couple of questions- how long are your gear legs, and (your
message implies it has not yet flown) how did you test them?
Bob Polgreen
Nowthen MN
-----Original Message-----
From: M&C <aviato...@phreego.com>
To: KRnet <kr...@mylist.net>
Sent: Thu, Sep 17, 2009 11:47 am
Subject: Re: KR> Astrovan main gear legs
Marlyn,
I used the spring bar from the old retract system, cut it into and attached
them
to the landing gear brackets which I also built out of 4130, 1/8" . I put two
small webs, just to add a little strength and made some holes to save weight.
I epoxyed foam on the front and back of the legs and shaped them to an airfoil,
then put one layer of cloth. I built the upper gear bracket with an 8 degree
incidence. Don't know if I will get any lift out of them, but the main reason I
did this was to take the (toe in) out of the wheel alignment. (tail dragger)
The other thing is they look cool, and reduced the weight of the landing gear
quite a bit over those heavy aluminum brackets.
I also painted both the steel brackets and the aluminum bar so as to not have
any direct contact between two dissimilar metals, so no corrosion can set in.
The lower brackets, I made of 1/4" 4130, same width as the alum bar about 8"
long, I cut most of the way through on an angle to make it plumb with the
aircraft in level position. I then bent it and filled the opening with weld.
Before I cut anything I made cardboard (highly recommend) templates of bracket
and gear legs and used small spring clamps to put them in place and check
everything for alignment. After putting all this together and checking with all
the gear and wheels on, I am now sitting at -0- toe in/toe out. I don't have
all
the weight on the gear yet so that may change.
I doubt if I have a hundred dollars in the whole setup.
Your results may vary.
Mike Turner
Edgewood NM, USA
<http://www.maddyhome.com/krsrch/thread?tt=d&on=2&hit=65>
Marlyn Taylor
541-344-6709
Eugene, OR 97405
marly...@efn.org
_______________________________________
Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
please see other KRnet info at http://www.krnet.org/info.html
