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Bookmark or Share- Helicopter | Facts, History, & Types | BritannicaA 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 - HowStuffWorksA helicopter's main rotor is the most important part of the vehicle. It provides the lift that allows the helicopter to fly, as well as the control that allows the helicopter to move laterally, make turns and change altitude. To handle all of these tasks, the rotor must first be incredibly strong.
- Helicopter - WikipediaA 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.
- 21 Types of Helicopters Explained (A Full Guide) - The Engineering ChoiceA 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.
- Helicopter - Simple English Wikipedia, the free encyclopediaA helicopter (also often used: chopper or heli) is a kind of flying machine or aircraft. A helicopter lifts up off of the ground and moves because of its rotors . A rotor is several small wings, called rotor blades, that spin together around a shaft.
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