In this category there are dwg useful design files: helicopters, 2d helicopters, 3d helicopters, civil helicopter, military helicopter, drawings.
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The helicopter (from the Greek: ἕλιξ [helix], spira, spirale, and πτερόν [pterón], ala) is a type of aircraft used to transport people and things for civil and military use. It is generally equipped with one or more piston or turbine engines that operate a complex of blades that allow it to rise and fall vertically, remain stationary in flight, move laterally, backwards or forwards and perform flights similar to an airplane , but with greater flexibility and maneuverability. Source: Wikipedia
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