Originally Posted by PostalAV8B

FWIW the AV8B was not powerlift until the Osprey came along. The FAA put it in the powerlift category and the AV8B was somehow dragged in with it. Right or wrong initially, both aircraft are getting relief by the FAA with a % of time to be counted as FW now.

AV8B pilots are selected out of the jet pipeline from flight school. Osprey pilots were initially sourced from all airframes, both rotor and jets from the fleet. Next CH-46 squadrons were transitioned to Ospreys along with slots being awarded from flight school.