Date: 01 Mar 97 18:42:14 From: "Brian A. Reynolds" <email@example.com> Organization: Rockwell Avionics - Collins References: 1 2 Followups: 1
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Kim Hackett wrote: > > >Can somebody please tell me what is the vertical landing speed > >limit for a B737 or B757 at MaxLandWeight (prior to any structural > damage)? > > For certification to FAR Part 25, I think the landing gear must pass a > limit drop test at 10 ft/second at its maximum landing weight and > 6 ft/sec at the maximum takeoff weight. Reserve energy gear drop testing > is required at a higher sink rate, but I don't remember what it is. FAR 25.723(b) The landing gear may not fail in a test, demonstrating its reserve engergy absorption capacity, simulated a descent velocity of 12 fps at design landing weight, assuming airplane life not greater then the airplane weight acting during the landing impact. I didn't see any reference to max takeoff weight.