Originally Posted by
tdracer
Good explanation of the needs for the Greyhound and CMV-22B here:
https://www.airspacemag.com/airspace...rey-180973131/
BTW, a bit confused by this little tidbit in Sandiego's post:
Why would a vertical takeoff aircraft require that? Surely if it's capable of a vertical takeoff, it can land at the same weight, or am I missing something?
Safe landing weight is often well less than takeoff weight. Also important if one of the two engines is lost (Osprey has emergency cross shafting where one engine can turn both prop-rotors) where dumping fuel quickly would be desired. You always want a good power/weight margin especially at sea for waive offs etc.