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propeller drag

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См. также в других словарях:

  • Drag — Drag, v. i. 1. To be drawn along, as a rope or dress, on the ground; to trail; to be moved onward along the ground, or along the bottom of the sea, as an anchor that does not hold. [1913 Webster] 2. To move onward heavily, laboriously, or slowly; …   The Collaborative International Dictionary of English

  • 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

  • windmilling drag — Drag caused by a windmilling propeller consequent to an engine shutoff. A propeller must be feathered to reduce the windmilling drag to the minimum. Drag of a windmilling propeller …   Aviation dictionary

  • Scimitar propeller — A scimitar propeller is shaped like a scimitar sword, with increasing sweep along the leading edge. Typically scimitar propellers are constructed of lightweight or composite materials. The combination of light weight and efficient aerodynamics… …   Wikipedia

  • Constant speed propeller — Cutaway constant speed propeller hub …   Wikipedia

  • Supercavitation propeller — The supercavitation propeller is a variant of a propeller for propulsion in water, where cavitation (formation of water vapour) is actively employed to gain increased speed by reduced friction. This article distinguishes a supercavitation… …   Wikipedia

  • Ducted propeller — Kort nozzle A ducted propeller is a propeller fitted with a non rotating nozzle. It is used to improve the efficiency of the propeller and are especially used on heavily loaded propellers or propellers with limited diameter. It was developed by… …   Wikipedia

  • Folding propeller — is a type of propeller where the propeller blades folds in when the propeller is not in use, and out when the propeller is in use.The propeller is often used on sailing yachts to reduce drag while under sail. It is also used on microfilm model… …   Wikipedia

  • effective propeller thrust — The net thrust produced by the propeller. It is equal to the propeller thrust minus the increase in drag resulting from the slipstream …   Aviation dictionary

  • feathered propeller — A propeller whose blades have been rotated so that the leading and trailing edges are nearly parallel with the aircraft flight path to stop or minimize drag and engine rotation. Normally used to indicate the shutdown of a reciprocating or… …   Aviation dictionary

  • profile-drag power loss — That portion of power expended in overcoming the total profile drag of propeller blades …   Aviation dictionary

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