The Piasecki X-49A conversion of a Sikorsky YSH-60F with a lifting wing and a ring tail rotor to test Vectored Thrust Ducted Propeller (VTDP) technology. Only one conversion was made.
Piasecki X-49A
The Piasecki X-49A conversion of a Sikorsky YSH-60F with a lifting wing and a ring tail rotor to test Vectored Thrust Ducted Propeller (VTDP) technology. Only one conversion was made.
All Aero 