Rotary-wing aircraft propelled by a propellor and lifted by a freely running autorotating rotor; aka gyroplane
A heavier-than-air flying machine which derives its lift from a rotor system mounted above the machine, with the blades rotating more or less horizontally.
An aircraft equipped with a rotating wing, or rotor, to sustain itself in the air, and a propeller to move forward.
a rotorcraft that does not power the rotor directly by the engine
An aeroplane that flies by virtue of the lift generated by freewheeling rotating wings set 'windmill'' fashion above the fuselage. The forward motion of the autogiro provides the force to keep the rotors turning so unlike a helicopter the autogiro cannot hover.
A rotor-craft with unpowered blades - it requires a separate engine to provide forward motion before lift is developed.
A propeller driven aircraft which depends upon a free rotating rotor head assembly in order to ascend and descend.
A rotorcraft propelled by a horizontal thrust system such as a propeller and lifted by an unpowered rotor free to spin under the action of the air flowing through its disc from below
An autogyro is a type of rotorcraft supported in flight by lift provided by a rotor. Unlike a helicopter, the rotor of an autogyro is driven by aerodynamic forces alone once it is in flight, and thrust is provided by an engine-powered propeller similar to that of a fixed-wing aircraft. The autogyro is a distinct type of aircraft and not a hybrid between fixed-wing aircraft and helicopters.