helicopter

Definition/Scope: An aircraft that derives lift over an approximately vertical axis from revolving engine-driven wings or blades. A helicopter possesses the capability of taking off and landing without a run, and of hovering at a fixed altitude above a given point on the ground or water surface. Helicopters are used for carrying airborne units in landing operations, for submarine search-and-strike purposes, for reconnaissance, for artillery spotting, for liaison, for evacuating the wounded, and as weapons platfo

Acronym:

hel
HELO

Broader Terms:

rotary wing aircraft

Narrower Terms:

attack helicopter
cargo helicopter
Hind
observation helicopter
utility helicopter

Related Terms:

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AntiTank-3 Sagger
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helicopter accident
Hind