Pre-war autogiros (autogiro was a Cierva trade name) were massive aircraft that were expensive to purchase and operate, but they had considerable success in specialized roles such as mail delivery to central cities, news reporting, and the air-show circuit. Juan Gomez-Spencer made a flight in the world's first practical rotary-wing aircraft - the Cierva C.4. Also, the gyro is less affected by high wind than typical fixed-wing aircraft and is not subject to stall. A major safety feature of the gyro is that if the engine fails, the craft can glide to a safe landing. Unlike a helicopter, the gyro's rotor blades are unpowered, necessitating a short roll for take-off. The gyroplane (or "gyrocopter" or simply "gyro") is a helicopter-airplane hybrid, offering many of the benefits of both and several of its own.
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