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Streffpilot

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Jul 12, 2011
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318
Location
Mukwonago, WI
Hi, i am looking for pictures of landing gear. Specifically someone who has adapted cessna style gear to a steel tube frame.

Thank you.
 

bmcj

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Apr 10, 2007
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Fresno, California
I'll see if I can get some shots of the gear attach on my Avid Flyer, but that may take awhile. In the meantime, there are some excellent shots here of a Super Baby Great Lakes: https://www.homebuiltairplanes.com/forums/tube-fabric/24032-correct-landing-gear-super-baby-great-lakes.html#post305064


Basically, if it is a one piece gear, the gear is flush mounted against the bottom of the frame (usually with a pad for wear and cushioning) and clamped in place with some retaining brackets. Of course, you have to have some fixtures welded in to accept the clamp bolts, and you want it in a cluster area where the fuselage has the needed strength. You might also try searching for Cassutt construction photos... same type of attachment.

If your gear legs are two separate pieces like some of the Cessna's have, then you need to build a receptacle box for each leg. The best example of that might be a disassembles Cessna, then just work out a way to bolt the receptacle box to the tube frame.
 

Dan Thomas

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Sep 17, 2008
Messages
5,657
Find someone with a newer Citabria, the ones with spring-steel legs, and see if you can get a look when the airplane is in for inspection and the forward belly panel is off. There are two legs and the truss to support them is pretty stout. They also use NAS bolts, not AN bolts, since the loads are concentrated and fairly high.

American Champion stopped using steel legs a few years ago and you can't even buy them now. They are replaced with aluminum legs, thicker but still lighter, and not so crack-prone as the steel. We had a steel leg fail and bust a wing. Cessna has also recently come out with extra inspection demands on their legs, as they're getting reports of serious corrosion pitting and probably some failures. If you're going to use Cessna legs, find good ones.
 

don january

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Feb 10, 2015
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Midwest
Wow no steel cage to mount the gear on a Cessna 172, guess thats where the spam can came from:)
 

Dan Thomas

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Sep 17, 2008
Messages
5,657
Wow no steel cage to mount the gear on a Cessna 172, guess thats where the spam can came from:)
Four big heavy aluminum castings mounted between two bulkheads made of heavy aluminum sheet. I'd bet that the assembly weighs more than the steel tube truss.
 

Birchair

Member
Joined
Dec 14, 2014
Messages
14
Location
Massey Ont. Canada
The Christavia MK1V has a 2 pc cessna gear (150).attached to steel tube fuseledge.I'm presently building that type of aircraft and have installed a Grove 1 piece aluminum spring gear. Does this setup interest you?
 

Streffpilot

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Joined
Jul 12, 2011
Messages
318
Location
Mukwonago, WI
Thank you. I see how they mount the gear on the outside. I am also curious about how they connect the inside of the landing gear that is tapered down and has a bolt hole in it?
 
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