JayW Posted November 16, 2022 Author Share Posted November 16, 2022 (edited) 38 minutes ago, Oldbaldguy said: I would expect that off-center or less than optimal arrested landings would put some pretty violent torquey side loads on the 288 bulkhead at the tailwheel attach points. Same with a wonky landing that ends up in a ground loop or something similar. So the truss would help transfer those loads past the gap in the structure left by the wheel well opening, taking the place of the fuselage structure that isn’t there. Did I get that right or miss it entirely? Ya missed it entirely big guy! Any side loads from the tail hook would transfer into the gear itself, which is what the hook attaches directly to, and from there transfer into the Sta 288 bulkhead and forward where the inertia of the aircraft would try to react (not aft). Any fuselage structure aft of the 288 bulkhead wouldn't see it at all. BTW - the gear attach fittings have some very stout back-up structure going forward for those big arresting hook loads, off center or no. If the hook attached to the fuselage itself, aft of the cutout (like the Hellcat), then what you say would be true. It's gotta be fin/rud side loads, and the torque generated by same (since the total load center would be well above the fuselage centerline, imparting a twisting moment). The Corsair aft fuselage has a long opening on the bottom where the tail gear doors are. Push hard sideways on the fin (which is directly above the cutout) at its mid span, and an unreinforced fuselage is going to probably we a bit wimpy, and twist a bit if not alot. That truss would stiffen it up nicely. However - we are not privy to the stress notes from the Vought analysts back in the 1940's! Edited November 16, 2022 by JayW daHeld 1 Link to comment Share on other sites More sharing options...
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