Reaction Engines Limited is a British aerospace manufacturer based in Oxfordshire, England. In 1989 (35 years ago) (1989), Reaction Engines was founded...

action force there is an equal, but opposite, reaction force." Examples include jet engines, rocket engines, pump-jets, and more uncommon variations such...

The Reaction Engines Limited LAPCAT Configuration A2 (called the LAPCAT A2) is a design study for a hypersonic speed jet airliner intended to provide long...

Rocket Engine) is a concept under development by Reaction Engines Limited for a hypersonic precooled hybrid air-breathing rocket engine. The engine is being...

The Reaction Engines Scimitar is a derivative of the SABRE engine technology, but intended for jet airliners (the Reaction Engines LAPCAT A2 concept),...

crankshaft. Unlike internal combustion engines, a reaction engine (such as a jet engine) produces thrust by expelling reaction mass, in accordance with Newton's...

reusable single-stage-to-orbit spaceplane by the British company Reaction Engines Limited (Reaction), using SABRE, a combined-cycle, air-breathing rocket propulsion...

the opposite direction to the jet. Reaction engines operating on the principle of jet propulsion include the jet engine used for aircraft propulsion, the...

pulse jet, or scramjet. In general, jet engines are internal combustion engines. Air-breathing jet engines typically feature a rotating air compressor...

components are referred to as powered flight. Most aircraft engines are either piston engines or gas turbines, although a few have been rocket powered and...

Director of Reaction Engines Ltd and associated with Project Daedalus, Blue Streak missile, HOTOL, Reaction Engines Skylon and the Reaction Engines A2 hypersonic...

Most rocket engines use light-weight fuels (liquid hydrogen, oxygen, or kerosene) accelerated to supersonic speeds. However, ion engines often use heavier...

Reaction Engines Limited (REL) to develop and produce Skylon, a proposed spacecraft based on HOTOL technologies, including its air-breathing engine....

Rocket engines are reaction engines, producing thrust by ejecting mass rearward, in accordance with Newton's third law. Most rocket engines use the combustion...

of Reaction Motors XLR11s. North American X-15 XLR99-RM-1 prototype engines for initial testing and flight trials. YLR99-RM-1 Service test engines fitted...

(planned) WZ-8 Hypersonic surveillance UAV (In Service) Engines Rocket engine Ramjet Scramjet Reaction Engines SABRE, LAPCAT (design studies) Missiles 3M22 Zircon...

rocket engine for HOTOL. He co-founded Reaction Engines in 1989. At Reaction Engines, he is working on the successor to the RB545, SABRE (rocket engine). On...

internal combustion heat engines (although non-combusting forms exist). Rocket engines generally produce a high-temperature reaction mass, as a hot gas, which...

DARPA Falcon Project Northrop Grumman RQ-180 Prompt Global Strike Reaction Engines Scimitar Top Gun: Maverick – 2022 film in which a "Darkstar" aircraft...

pump the fuel to the engine. The result is the thrust/weight ratio of hydrogen-fueled engines is 30–50% lower than comparable engines using denser fuels...

by burning its entire fuel load. Delta-v is produced by reaction engines, such as rocket engines, and is proportional to the thrust per unit mass and the...

DM-2 engines on a modified Polikarpov I-15. Merkulov designed a ramjet fighter "Samolet D" in 1941, which was never completed. Two of his DM-4 engines were...

first liquid-propellant rocket engine developed in the United States for use in aircraft. It was designed and built by Reaction Motors Inc., and used ethyl...

included an increase in the number of engines to four to allow for smaller less technically challenging engines and to allow takeoff at derated levels...

useful for high-thrust rocket engines like liquid-propellant rockets, and less useful for low-thrust reaction engines such as ion drives, which take...

the engines, and permits combustors to inject more fuel without overheating the engine. This idea leads to plausible designs like Reaction Engines SABRE...

using any surrounding air. A rocket engine produces thrust by reaction to exhaust expelled at high speed. Rocket engines work entirely from propellant carried...

bipropellant low-thrust, auxiliary or reaction control rocket engines, as well as in some in large rocket engines for first and second stages of ballistic...

company claims to have designed, built, and successfully tested a Mach 5 engine prototype in the span of 9 months. In August 2020, Hermeus received a $1...

exothermic reactions not involving combustion; they are not then strictly classed as external combustion engines, but as external thermal engines. The working...