This article is about a propulsion engine. For the British aerospace company, see Reaction Engines Limited.
"Reaction motor" redirects here. For the American aerospace company, see Reaction Motors.
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A reaction engine is an engine or motor that produces thrust by expelling reaction mass (reaction propulsion),[1] in accordance with Newton's third law of motion. This law of motion is commonly paraphrased as: "For every action force there is an equal, but opposite, reaction force."
Examples include jet engines, rocket engines, pump-jets, and more uncommon variations such as Hall effect thrusters, ion drives, mass drivers, and nuclear pulse propulsion.
^Wragg, David W. (1973). A Dictionary of Aviation (first ed.). Osprey. p. 221. ISBN 9780850451634.
A reactionengine is an engine or motor that produces thrust by expelling reaction mass (reaction propulsion), in accordance with Newton's third law of...
ReactionEngines Limited is a British aerospace manufacturer based in Oxfordshire, England. In 1989 (35 years ago) (1989), ReactionEngines was founded...
crankshaft. Unlike internal combustion engines, a reactionengine (such as a jet engine) produces thrust by expelling reaction mass, in accordance with Newton's...
A jet engine is a type of reactionengine, discharging a fast-moving jet of heated gas (usually air) that generates thrust by jet propulsion. While this...
The ReactionEngines Scimitar is a derivative of the SABRE engine technology, but intended for jet airliners (the ReactionEngines LAPCAT A2 concept),...
the opposite direction to the jet. Reactionengines operating on the principle of jet propulsion include the jet engine used for aircraft propulsion, the...
The ReactionEngines Limited LAPCAT Configuration A2 (called the LAPCAT A2) is a design study for a hypersonic speed jet airliner intended to provide long...
A rocket engine uses stored rocket propellants as the reaction mass for forming a high-speed propulsive jet of fluid, usually high-temperature gas. Rocket...
functions of primary propulsion, reaction control, station keeping, precision pointing, and orbital maneuvering. The main engines used in space provide the primary...
In vehicles, the engine that expels the propellant is called a reactionengine. Although technically a propellant is the reaction mass used to create...
fusion reaction cannot be produced, it might be possible to use fusion to boost the efficiency of another propulsion system, such as a VASIMR engine.[citation...
The Reaction Motors LR99 engine was the first large, throttleable, restartable liquid-propellant rocket engine. Development began in the 1950s by the Reaction...
chamber. The ReactionEngines Scimitar was proposed for the LAPCAT hypersonic airliner, and the ReactionEngines SABRE for the ReactionEngines Skylon spaceplane...
insertion in place of traditional chemical rocket engines. These types of rocket-like reactionengines use electric energy to obtain thrust from propellant...
Working mass, also referred to as reaction mass, is a mass against which a system operates in order to produce acceleration. In the case of a chemical...
propulsion engine is a type of electric propulsion that generates thrust from a quasi-neutral plasma. This is in contrast with ion thruster engines, which...
FFSC engines belong to a broader class of rocket engines called gas-gas engines. Full gasification of components leads to faster chemical reactions in the...
efficiency is explained by the Oberth effect, wherein the use of a reactionengine at higher speeds generates a greater change in mechanical energy than...
company that includes Avalanche Studios, Expansive Worlds, and Systemic Reaction. Founded by Linus Blomberg and Christofer Sundberg in March 2003, Avalanche...
researchers in 1940. They developed engines powered by aniline and red fuming nitric acid (RFNA). Robert Goddard, Reaction Motors, and Curtiss-Wright worked...
Rocket (RAIR). The RAIR carries its nuclear fuel supply and exhausts the reaction products to produce some of its thrust. However it greatly enhances its...
Isp) is a measure of how efficiently a reaction mass engine, such as a rocket using propellant or a jet engine using fuel, generates thrust. A propulsion...
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