
1) Aeroplane 2) Chopper 3) Copter 4) Eggbeater 5) Skyhook 6) Whirlybird
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https://www.crosswordclues.com/clue/helicopter

1) Cheer pilot off in chopper 2) Chopper 3) Chopper in the sky 4) Eggbeater 5) Explosive spinner AKA UFO 6) French word used in English 7) Noisy hovering aircraft 8) Police-department hoverer 9) Something seen on a pad 10) Vehicle that hovers in air 11) Vertical flyer 12) Whirlybird
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https://www.crosswordclues.com/clue/helicopter

A helicopter is a type of rotorcraft in which lift and thrust are supplied by rotors. This allows the helicopter to take off and land vertically, to hover, and to fly forward, backward, and laterally. These attributes allow helicopters to be used in congested or isolated areas where fixed-wing aircraft and many forms of vertical takeoff and landin...
Found on
http://en.wikipedia.org/wiki/Helicopter

A wingless aircraft acquiring its lift from revolving blades driven by an engine about a near-vertical axis. A ROTORCRAFT acquiring its primary motion from engine-driven rotors that accelerate the air downward, providing a reactive lift force, or accelerate the air at an angle to the vertical, providing lift and thrust.
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http://www.aerofiles.com/glossary.html

aircraft with one or more power-driven horizontal propellers or rotors that enable it to take off and land vertically, to move in any direction, or ... [20 related articles]
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http://www.britannica.com/eb/a-z/h/33

An aircraft that can take off and land vertically through use of spinning rotors. Also called a rotary aircraft, a helicopter can hover and rotate in the air and can move sideways and backwards while aloft. It can change direction very quickly and can stop moving completely and begin hovering. A h...
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http://www.daviddarling.info/encyclopedia/H/helicopter.html

An aircraft that can rise or descend vertically, by means of large overhead power-driven rotor or rotors,
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http://www.encyclo.co.uk/local/22135

Helicopter is the name given to a flying machine which can raise itself vertically by means of horizontally revolving propellers or air-screws - known as a rotor. The advantages of such a machine for war puposes, enabling it to rise and land on the deck of a warship with ease, hover in the air for scouting purposes, fly low and slow for attacking g...
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http://www.probertencyclopaedia.com/browse/IH.HTM

[
n] - an aircraft without wings that obtains its lift from the rotation of overhead blades
Found on
http://www.webdictionary.co.uk/definition.php?query=helicopter

helicopter 1. Any of a class of heavier-than-air craft that are lifted and sustained in the air horizontally by rotating wings or blades turning on a vertical axes through power supplied by an engine. 2. An aircraft without wings that moves by means of large blade-rotors that spin around above it. It can fly vertically and horizontally; as well as...
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http://www.wordinfo.info/words/index/info/view_unit/962/2

A rotor craft with one or more sets of powered blades.
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https://en.wiktionary.org/wiki/Appendix:Glossary_of_aviation,_aerospace,_an

An aircraft that produces lift using airfoils that are driven and rotate about a vertical axis. See also: Aircraft, Autogyro.
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https://www.encyclo.co.uk/local/20687
chopper 1 whirlybird noun an aircraft without wings that obtains its lift from the rotation of overhead blades
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https://www.encyclo.co.uk/local/20974
Click images to enlargePowered aircraft that achieves both lift and propulsion by means of a rotary wing, or rotor, on top of the fuselage. It can take off and land vertically, move in any direction, or remain stationary in the air. It can be powered by piston or jet engine. The autogiro was a precursor. The rotor of a he...
Found on
https://www.encyclo.co.uk/local/21221

A wingless aircraft acquiring its lift from revolving blades driven by an engine about a near-vertical axis. A ROTORCRAFT acquiring its primary motion from engine-driven rotors that accelerate the air downward, providing a reactive lift force, or accelerate the air at an angle to the vertical, providing lift and thrust.
Found on
https://www.encyclo.co.uk/local/22323

Upright aerial spin of 360 degrees.
Found on
https://www.nbcolympics.com/news/freestyle-skiing-101-glossary
No exact match found.