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propulsion




The means by which a body's motion can be changed. Jet propulsion works by ejecting matter from a vehicle. Two special cases of this are rocket propulsion and duct propulsion. In the former, thrust is produced by ejecting stored matter called the propellant. Duct propulsion involves air-breathing engines that use mostly the surrounding medium together with some stored fuel.


Related category

   • AERODYNAMICS AND AERONAUTICS