Originally Posted by
PNWFlyer
you left out “in the level attitude” in addition to no side loading and at the Max lading weight. It is 6 fps at design takeoff weight. Part 25 sub part C. 25.473 “Landing load conditions and assumptions.”
600 FPM is at designed landing weight. The 6 fps(360 FPM) is at max takeoff weight. Your certainly correct that landing with the wings other than level imposes additional loads.