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Re: Short Tri-gear legs

Subject: Re: Short Tri-gear legs
From: Rob Housman <ROBHOUSMAN@worldnet.att.net>
Date: Thu, 7 Jun 2001 21:51:40
If the legs are snug in the sockets (and they are) the lever arm length that
affects the load on the leg sockets and therefore the plywood ribs, is the
gear leg that is external to the fuselage.  A shorter length inside of the
fuselage, within reason, will not change the load that the ribs must absorb.


Best regards,

Rob Housman
A070


----- Original Message -----
From: "Fred Fillinger" <fillinger@ameritech.net>
Subject: Re: Short Tri-gear legs


> I recall something like that, and it was about a 1/2".  I just lowered
> the fuselage in its cradle by 1/2", to preserve the other dimensions.
> I figured there was little magic to the fuse height (except to result
> in a little more nose up), but gear position fore/aft is important,
> along with caster, toe-in, etc.  Bonding the gear leg sockets as you
> describe I think will increase stresses on wood ribs and fuselage.  Of
> course, you can always mitigate that with a panel placard, "Hard
> Landings Prohibited." :)
>
> Regards,
> Fred F., A063
>
> > My trigear gear legs are too short to reach FS 70 and 36.75" off
midline.
> >
> > I've been told some trigear builders have ameliorated this problem by
> > glassing the bottom flanges of the gear sockets below the belly of the
> > plane thereby extending the reach of the gear legs towards FS 70.
> >
> > I'd like advice from someone who's done that or something similar.
> >
> > Also has anyone lowered the gear legs in the sockets a half inch or so
to
> > get a longer reach?
> >
> > Rob
> > A162



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