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helicopter in action
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Helicopter In Action

Hovering is the most challenging part of flying a helicopter. This is because a helicopter generates its own gusty air while in a hover, which acts against the fuselage and flight control surfaces. The end result is constant control inputs and corrections by the pilot to keep the helicopter where it is required to be. Despite the complexity of the task, the control inputs in a hover are simple. The cyclic is used to eliminate drift in the horizontal plane, that is to control forward and back, right and left. The collective is used to maintain altitude. The pedals are used to control nose direction or heading. It is the interaction of these controls that makes hovering so difficult, since an adjustment in any one control requires an adjustment of the other two, creating a cycle of constant correction.
• Transition from hover to forward flights
As a helicopter moves from hover to forward flight it enters a state called Translational lift which provides extra lift without increasing power. This state, most typically, occurs when the airspeed reaches approximately 16-24 knots, and may be necessary for a helicopter to obtain flight.

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Album name:Transport
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Keywords:#helicopter #action
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Date added:Nov 20, 2013
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