The X-22A was a plane used to test many things for all three branches with aircraft power. Flaws like too much noise and a bit unreliable made the aircraft go unused for many years until the Navy tried to revive it. That attempt failed as wepl and the only remaining model resides in a naval museum in florida (i think its florida). It was developed as a military transport and proposed attacker/anti submarine versions were also drafted for the air force. Overall, cool aircraft. Use AG1 for a speed boost when in fans forward mode (mode seen in thumbnail). Be careful when tilting into forward flight as the plane likes to do front flips if you dont ease into forward flight. Have a great flight and i hope you enjoy my latest concoction!