OrbitalDriverさんのイラストまとめ

Convair F2Y Sea Dart, a single prototype was built. To date it is the only seaplane to exceed the speed of sound.

McDonell XV-1 compound gyroplane. Two were built but it never entered production.

Really interesting mix of NATO and Warsaw pact equipment.

Bell X-22, 1967. These kind of ducted fans would not be used again until the F-35B.