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feathering angle

См. также в других словарях:

  • feathering angle — The angular setting that gives a zero windmilling torque and, hence, minimum drag for a stopped propeller. Also called feathering pitch …   Aviation dictionary

  • feathering pitch — The same as a feathering angle …   Aviation dictionary

  • feathering axis — The axis about which the pitch angle of a helicopter rotor blade is varied. The feathering axis is the same as a spanwise axis …   Aviation dictionary

  • feathering — i. The process of changing the pitch of a propeller’s blades to produce zero torque and to reduce drag to the minimum so as to prevent further damage to an engine that has been shut down either automatically or manually after a malfunction. In… …   Aviation dictionary

  • feathering hinge — A pivot of a rotorcraft blade that allows the blade angle to be varied …   Aviation dictionary

  • full-feathering — ˈ ̷ ̷| ̷ ̷( ̷ ̷) ̷ ̷ adjective of an airplane propeller : capable of being feathered in flight to a pitch angle of approximately 90 degrees so that the drag is a minimum and there is no tendency to rotate …   Useful english dictionary

  • Helicopter flight controls — Location of flight controls in a helicopter A helicopter pilot manipulates the helicopter flight controls in order to achieve controlled aerodynamic flight.[1] The changes made to …   Wikipedia

  • high pitch — The pitch of a propeller blade set at a high angle other than the feathering angle. A propeller blade at a high pitch angle takes a greater bite of air than one at a low pitch. Consequently, a high pitch produces more thrust at a given RPM than a …   Aviation dictionary

  • feather — i. The rotation of a helicopter rotor blade about its pitch change axis. ii. Turning propeller blades to a feathering angle to minimize drag and prevent further damage that could lead to engine failure. Position of propeller at various stages of… …   Aviation dictionary

  • Propeller — A propeller is essentially a type of fan which transmits power by converting rotational motion into thrust for propulsion of a vehicle such as an aircraft, ship, or submarine through a mass such as water or air, by rotating two or more twisted… …   Wikipedia

  • feather — I. noun Etymology: Middle English fether, from Old English; akin to Old High German federa wing, Latin petere to go to, seek, Greek petesthai to fly, piptein to fall, pteron wing Date: before 12th century 1. a. any of the light horny epidermal… …   New Collegiate Dictionary

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