coaxial propellers

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• coaxial propellers — Two propellers mounted on concentric propeller shafts with independent drives and rotating in opposite direction. This arrangement results in zero residual torque …   Aviation dictionary

• Coaxial rotors — Kamov Ka 32A 12 Coaxial rotors are a pair of helicopter rotors mounted one above the other on concentric shafts, with the same axis of rotation, but that turn in opposite directions (contra rotation). This configuration is a feature of… …   Wikipedia

• Contra-rotating propellers — For contra rotating marine propellors, helicopter rotors and turbine fan blades, see Contra rotating. Not to be confused with counter rotating propellers. Contra rotating propellers on a Rolls Royce–Griffon–powered P 51 unlimited racer Aircraft… …   Wikipedia

• Contra-rotating — A Soviet Ka 32 helicopter with coaxial contra rotating rotors, in 1989 Contra rotating, also referred to as coaxial contra rotating, is a technique whereby parts of a mechanism rotate in opposite directions about a common axis, usually to… …   Wikipedia

• Fictional universe of Avatar — In the 2009 science fiction film Avatar, director James Cameron conceived a fictional universe in which humans seek to mine unobtanium on the fictional exoplanetary moon, Pandora. The Earth like moon is inhabited by a sapient indigenous humanoid… …   Wikipedia

• parts — Synonyms and related words: AF amplifier, AFC, AFC mixer, CRT, CW oscillator, FM detector, PCV valve, RF amplifier, TR switch, TR unit, ability, accelerator, adder, adjustable propeller, afterburner, aileron, air controls, air scoop, airscrew,… …   Moby Thesaurus

• Aurel Vlaicu — IPA|/a.u rel vlaj.ku/ (November 19, 1882 – September 13, 1913) was a Romanian engineer, inventor, airplane constructor and early pilot. BiographyAurel Vlaicu was born in Binţinţi (now Aurel Vlaicu), near Orăştie, Transylvania, which was part of… …   Wikipedia

• aeroplane — Synonyms and related words: adjustable propeller, afterburner, aileron, air controls, air scoop, aircraft, airlift, airplane, airscrew, astrodome, avion, balloon, bay, be airborne, beaching gear, blister, body, bomb bay, bonnet, bow, brace wire,… …   Moby Thesaurus

• airplane — Synonyms and related words: Cub, VTOL, adjustable propeller, aeroplane, afterburner, aileron, air ambulance, air controls, air scoop, air scout, aircraft, airfreighter, airlift, airliner, airscrew, all weather fighter, ambulance, amphibian… …   Moby Thesaurus

• airplane — /air playn /, n. 1. a heavier than air aircraft kept aloft by the upward thrust exerted by the passing air on its fixed wings and driven by propellers, jet propulsion, etc. 2. any similar heavier than air aircraft, as a glider or helicopter. Also …   Universalium

• BMP-1 variants — This is a complete list of variants and designations of the BMP 1 infantry fighting vehicle. It is sorted by country of origin. Variants Former USSRInfantry fighting vehicles* BMP (Ob yekt 764) Original main prototype of BMP 1 developed by the… …   Wikipedia