Paddle wheel rotorcraft
Parachute support and stabilization for helicopter recovery...
Parachute supported aircraft with controlled wing collapse...
Parafoil
Parafoil vertical lift mechanism
Parawing with an automatic canopy withdrawing mechanism
Partial piloting, lift propelling and propelling system
Passenger vehicle employing a circumferentially disposed...
Permanently rotating free aerostat mobile in radial...
Personal air transport
Personal hoverplane with four tiltmotors
Personal propulsion device
Personal propulsion device
Personal propulsion device
Phasing control for convertiplane
Pivotable cable guard for retaining a swingable-movable cable
Pivoting power transmission unit with load transfer via the...
Pivoting power transmission unit with peripheral face...
Pivoting spanwise-flow redirector for tiltrotor aircraft
Pivoting wire deflection and severing system