Originally Posted by
SLXOwft
Over a third of the fatalities mentioned in The Times article were due to the tragic loss of 19 US Marines on 8 April 2000 when the starboard rotor of MV-22B 165436 of MX-04 stalled at 245 ft when conducting a simulated rescue.
The technical term is 'vortex ring state' (VRS). The subsequent, exhaustive, investigative test flights earned the Chief Test Pilot (Tom MacDonald) the SETP
Kincheloe Award.