helicopter
Sign in to savethumb|VH-SUF, a McDermott Aviation Bell 214 taking off after refuelling. thumb|Cabin view looking out from a helicopter in flight thumb|Bell 412|Bell 412CF looking forward from the tail, showing its twin turbine engine exhausts thumb|1956 Hiller YROE-1 one-man "Rotorcycle" being tested at NASA Ames Research Center 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, to hover, and to fly forward, backward and laterally. These attributes allow helicopters to be used in congested or
AI overview
A helicopter is a type of aircraft with horizontally spinning rotors that generate the lift and thrust needed for flight, allowing it to take off and land vertically, hover in place, and fly in any direction. Because of these unique capabilities, helicopters can operate in congested areas and situations where traditional aircraft cannot, making them valuable for various specialized purposes.
AI-generated from the Wikipedia summary — may contain errors.
Article
40 sectionsContents
- Etymology
- Design
- Rotor system
- Anti-torque
- Engines
- Transmission
- Flight controls
- Compound helicopter
- Flight
- Hover
- Transition from hover to forward flight
- Forward flight
- Autorotation
- Uses
- Market
- History
- Early design
- First flights
- Early development
- First practical rotorcraft
- Single lift-rotor success
- American single-rotor beginnings
- Birth of an industry
- Turbine age
- Safety
- Maximum speed limit
- Noise
- Vibration
- Loss of tail-rotor effectiveness
- Critical wind azimuth
- Transmission
- Hazards
- List of fatal crashes
- World records
- See also
- References
- Notes
- Footnotes
- Bibliography
- External links
thumb|VH-SUF, a McDermott Aviation Bell 214 taking off after refuelling. thumb|Cabin view looking out from a helicopter in flight thumb|Bell 412|Bell 412CF looking forward from the tail, showing its twin turbine engine exhausts thumb|1956 Hiller YROE-1 one-man "Rotorcycle" being tested at NASA Ames Research Center 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, 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 short take-off and landing (STOL) or short take-off and vertical landing (STOVL) aircraft cannot perform without a runway.
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. Starting in 1939 and through 1943, Igor Sikorsky worked on the development of the VS-300, which over four iterations, became the basis for modern helicopters with a single main rotor and a single tail rotor.