reaction engine


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reaction engine

[rē′ak·shən ‚en·jən]
(aerospace engineering)
An engine that develops thrust by its reaction to a substance ejected from it; specifically, such an engine that ejects a jet or stream of gases created by the addition of energy to the gases in the engine. Also known as reaction motor.

reaction engine

reaction engineclick for a larger image
Principle of reaction engine.
An engine that works on the principle of Newton's third law of motion: To every action, there is an equal and opposite reaction. All aerospace propulsions are based on this principle.
References in periodicals archive ?
6 [pounds sterling] million in Reaction Engines to acquire 20% of its share capital, and agreed to provide industrial, technology development and project management expertise to support Reaction Engines during its development phase.
SOUNDBITE) (English) MARK THOMAS, MANAGING DIRECTOR OF REACTION ENGINES, SAYING:
Reaction Engines described the invention as "the biggest breakthrough in propulsion technology since the jet engine.
Our work shows that it is possible technically; now it's up to the world to decide if it wants it," said Alan Bond, managing director of Reaction Engines, in a statement.
Alan Bond, managing director of Reaction Engines, said: "The A2 is designed to leave Brussels, fly quietly and subsonically out into the north Atlantic at mach 0.
Reaction Engines is a privately owned company in the United Kingdom.
Currently REL is developing a single-stage orbital spaceplane called Skyton, and other advanced vehicles, including the Reaction Engines A2 hypersonic airliner concept, as part of the European LAPCAT programme.
The 60 million [pounds sterling] invested by the government will buy Reaction Engines time as it tries to raise the estimated 360 million [pounds sterling] capital needed for full engine development.
According to Reaction Engines Limited, delivering payloads into orbit could drop from 15,000 dollars per kilo to less than 1,000 dollars-vastly reducing the price of delivering payloads, such as telecommunications satellites, into orbit.
Alan Bond of Reaction Engines Ltd and Mark Hempsell of Bristol University led the research on the tablet, which was found in the remains of the royal palace at Nineveh, modern Iraq, in 1851, and is in the British Museum.
Contract Awarded to Conduct high-temperature airflow testing in the United States of a Reaction Engines precooler test article called HTX.
Reaction Engines is developing a synergetic air-breathing rocket engine (Sabre) that could allow an aircraft to travel directly into Earth orbit.