jet propulsion

A form of propulsion where a mass of air is accelerated through a large change in velocity, and the body is propelled forward as a result of the action-reaction phenomenon, or Newton’s third law of motion. The propulsion unit obtains its oxygen from the air for imparting a higher velocity to the incoming gases by combusting fuel. The thrust is obtained by expelling a mass air flow at a higher velocity than its incoming velocity.
In the above case, velocity of exhaust gases (Vje) is much greater than those of gases at the inlet (Va). The accelerated gases push the aircraft forward by reaction in accordance with Newton’s third law of motion.

Aviation dictionary. 2014.

Look at other dictionaries:

  • jet propulsion — n. a method of propelling airplanes, boats, etc. that uses the reaction force created when compressed outside air and hot exhaust gases are forced through a jet nozzle …   English World dictionary

  • jet propulsion — Synonyms and related words: action and reaction, aeromotor, charge, diesel propulsion, exhaust, fuel, gas propulsion, gasoline propulsion, jet power, liquid oxygen, plasma jet propulsion, power plant, propellant, propulsion charge, ram jet… …   Moby Thesaurus

  • jet propulsion — noun a) Propulsion that is caused by the expulsion of a jet of fluid, especially by a jet engine b) The study of devices propelled by jet propulsion …   Wiktionary

  • jet propulsion — reaktyvinė trauka statusas T sritis Gynyba apibrėžtis Dujų (ar kt. darbinės medžiagos) srovės reakcijos (atatrankos) jėga, kuri atsiranda dujų srovei labai greitai veržiantis pro reaktyvinio variklio tūtą; reaktyvinės traukos kryptis priešinga… …   Artilerijos terminų žodynas

  • jet propulsion — propulsion in one direction by a jet of air or gas in the opposite direction …   English contemporary dictionary

  • jet propulsion — jet′ propul′sion n. phs the propulsion of a body by its reaction to a force ejecting a gas or a liquid from it • Etymology: 1865–70 …   From formal English to slang

  • jet propulsion — jet pro pulsion n [U] the use of a jet engine for power …   Dictionary of contemporary English

  • jet propulsion — Reaction propulsion in which the propulsion unit obtains oxygen from the air, as distinguished from rocket propulsion, in which the unit carries its own oxygen producing material. In connection with aircraft propulsion, the term refers to a… …   Military dictionary

  • jet propulsion — noun Date: 1867 propulsion of a body produced by the forwardly directed forces of the reaction resulting from the rearward discharge of a jet of fluid; especially propulsion of an airplane by jet engines …   New Collegiate Dictionary

  • jet propulsion — noun propulsion by means of the discharge of a jet of fluid toward the rear • Hypernyms: ↑reaction propulsion …   Useful english dictionary

  • jet propulsion — /dʒɛt prəˈpʌlʃən/ (say jet pruh pulshuhn) noun a method of producing a propelling force upon an air or water craft through the reaction of a high velocity jet, usually of heated gases, discharged towards the rear. Also, reaction propulsion …   Australian English dictionary

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