Freewing Su-35 (Vendor-independent; please read 1st post before contributing)
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Jan 07, 2013
, 07:59 PM
United States, CA, Fairfield
Joined Jul 2004
I've been flying exclusively off a grass field and have been having the retract's cases cracking often. I suspect it's from the trunion slamming against the case's back from the stresses involved.
I'm running low on replacement pieces and came up with the idea to add aluminum plates to take the brunt of the slamming forces. The plates are handmade from 1/16" thick aluminum stock. See the photos for more.
I haven't had any problems with the plastic trunions cracking/breaking yet, but I'll be ordering some with metal trunions when the time comes.
Does anyone have some other ideas for beefing up their retract systems?
My main gear oleos are still tending to bend with a twist to the, "toe out," angle. I still haven't determined what part is actually twisting.
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1/16" thick aluminum plate. 3mm diameter screw holes.
Still room for the screw threads to dig into the mounting area. Hopefully most of the trunion's forces will transfer to the plate versus the plastic casing.
Main gear installed with plate.