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helicopter
Definição1
A heavier-than-air aircraft supported in flight chiefly by the reactions of the air on one or more power-driven rotors on substantially vertical axes.
Fonte1
INTERNATIONAL CIVIL AVIATION ORGANIZATION. International civil aviation vocabulary. 3rd ed. Montreal, 2007. (Doc. 9713)
Definição2
A helicopter is an aircraft that is lifted and propelled by one or more horizontal rotors, each rotor consisting of two or more rotor blades. Helicopters are classified as rotorcraft or rotary-wing aircraft to distinguish them from fixed-wing aircraft because the helicopter derives its source of lift from the rotor blades rotating around a mast.
Fonte2
FEDERAL AVIATION ADMINISTRATION. Helicopter flying handbook (FAA-H8083-21A). Washington, DC: FAA, 2012.
Nota adicional1
Coordination, control touch, and timing are all used simultaneously when flying a helicopter.
Nota adicional2
The word "helicopter" is adapted from the French hélicoptère, coined by Gustave de Ponton d'Amécourt in 1861. It is linked to the Greek words helix/helikos ("spiral" or "turning") and pteron ("wing").
Subárea1
Rotorcraft
Related Term
helicopter turboshaft
Broader Term
heavier-than-air aircraft
Português
helicóptero
Imagem

 Los Angeles Police Department (LAPD) Bell 206 Jet Ranger helicopter.

Los Angeles Police Department (LAPD) Bell 206 Jet Ranger helicopter.

Fonte: http://en.wikipedia.org/wiki/File:LAPD_Bell_206_Jetranger.jpg