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helicopter    音标拼音: [h'ɛlɪk,ɑptɚ]
n. 直升飞机
vt. 用直升飞机载送
vi. 乘直升飞机

直升飞机用直升飞机载送乘直升飞机

helicopter
n 1: an aircraft without wings that obtains its lift from the
rotation of overhead blades [synonym: {helicopter}, {chopper},
{whirlybird}, {eggbeater}]

Helicopter \Hel"i*cop`ter\, n. [NL., fr. Gr. "e`lix, "e`likos, a
spiral ptero`n a wing.]
a heavier-than-air aircraft whose lift is provided by the
aerodynamic forces on rotating blades rather than on fixed
wings. Contrasted with {fixed-wing aircraft}.
[PJC]


Helicopter \Hel"i*cop`ter\, v. i.
to travel in a helicopter.
[PJC]


Helicopter \Hel"i*cop`ter\, v. t.
to transport in a helicopter.
[PJC]

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  • Helicopter - Wikipedia
    The Focke-Wulf Fw 61 was the first successful, practical, and fully controllable helicopter in 1936, while in 1942, the Sikorsky R-4 became the first helicopter to reach full-scale production
  • Helicopter | Facts, History, Types | Britannica
    What is a helicopter? A helicopter is an 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 to remain stationary in the air
  • How Helicopters Work - HowStuffWorks
    One thing that has characterized the helicopter since its invention in the 1930s has been the absurdity of the machine The contraption simply looks unable to deliver on its promise, which is to fly up and down, backward and forward, right and left
  • 21 Types of Helicopters Explained (A Full Guide)
    A helicopter is a type of rotorcraft in which lift and thrust are supplied by horizontally-spinning rotors This allows the helicopter to take off and land vertically, hover, and fly forward, backward, and laterally
  • History of Helicopters: From Early Designs to Modern Innovations
    Nearly 100 years after practical rotorcraft first flew, rotary-wing machines now reach remote peaks and congested city rooftops with life-saving speed A helicopter is a rotorcraft that uses spinning rotors for lift and thrust, allowing vertical takeoff, hovering, and multidirectional flying
  • US Army receives first autonomous-capable Black Hawk helicopter | Fox . . .
    The U S Army has received its first autonomous UH-60MX Black Hawk, built with Sikorsky, marking a key milestone in military aviation modernization
  • How does a helicopter work? | Who invented helicopters?
    At the heart of every helicopter is a remarkable feat of engineering – the spinning rotor system that generates the lift to overcome gravity and propel the aircraft through the air
  • DARPA-developed autonomous helicopter technology transitions to U. S . . .
    DARPA’s vision to reimagine the role of human pilots and revolutionize military aviation has culminated in the transition of a DARPA-developed autonomous flight system to the U S Army As part of the technology transition agreement between DARPA and the Army’s Project Manager for Utility Helicopters, an experimental, fly-by-wire H-60Mx Black Hawk, fully equipped with the DARPA-funded
  • Helicopters – Introduction to Aerospace Flight Vehicles
    Helicopters are a type of Vertical Take-Off and Landing (VTOL) aircraft and a class within the broader category of rotorcraft They can take off and land from almost anywhere on the ground or at sea, hover motionless in the air, and then fly in any direction at the pilot’s whim
  • Helicopters - Airbus
    Airbus helicopters are an essential tool for first responders, firefighters, public service operators and military customers flying critical missions across the globe





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