Rotorcraft having coaxial counter-rotating rotors which...
Rough terrain cargo parachute assembly
Round-trip orbital operation of a spacecraft
Roving geosynchronous orbit satellite maintenance system
Rudder assembly with a controlled boundary layer control for an
Rudder bar system with force gradient for a helicopter
Rudder blade mounting arrangement for a missile
Rudder control gust lock
Rudder of a commercial aircraft
Rudder pedal adjustment system
Rudder restraint for grounded aircraft
Runway sander
Runway-independent omni-role modularity enhancement (ROME)...