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ROCKET SCIENCE
British hypersonic engine passes key test
by Staff Writers for Launchspace
Bethesda MD (SPX) Nov 01, 2019

file illustration

Reaction Engines, a UK-based company formed in 1989 to design and develop the technologies needed for a new class of innovative hypersonic propulsion system, claims a breakthrough in aerospace engine technology by developing ultra-lightweight heat exchangers. Such heat exchangers prevent engine components from overheating at high flight speeds.

The company's Synergetic Air-Breathing Rocket Engine (SABRE) is intended to enable aircraft to fly over five times the speed of sound in the atmosphere. One of the primary applications is to enable affordable reusable air-breathing first stages for space launch vehicles. Excessive heating at high Mach number is a fundamental problem that has prevented successful hypersonic flight in the atmosphere.

Reaction Engines was founded by three propulsion engineers from Rolls Royce, who had workedon the RB545 engine, originally intended for use on the British Horizontal Take Off and Landing (HOTOL) vehicle, a 1980s contender for a Single Stage to Orbit (SSTO) solution. Earlier this month Reaction Engines announced that its Sabre hypersonic engine passed a DARPA-funded cooling test at the Colorado Air and Space Port.

The announcement stated that the precooler heat exchanger element had run at the equivalent of five times the speed of sound at its test facility. This is a vital component that prevents the engine from overheating at high flight speeds. The Sabre could be a game changer, allowing the development of advanced vehicles such as hypersonic combat jets, Mach 5 civil aircraft and reusable space vehicles.

Reaction Engines' CTO said: "The performance of our proprietary precooler technology was validated at hypersonic flight conditions and takes us closer to realizing our objective of developing the first air-breathing engine capable of accelerating from zero to Mach 5." The next step is a trial of a full Sabre core engine within 18 months.


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Rocket Science News at Space-Travel.Com


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ROCKET SCIENCE
DARPA updates competitor field for flexible, responsive launch to orbit
Washington DC (SPX) Oct 24, 2019
In early 2020, one team will attempt to win a $10 million prize in the DARPA Launch Challenge. The Challenge aims to increase the flexibility and pace of space launch to put assets into low Earth orbit to meet national security priorities. The remaining qualifying competitor is a space startup comprising industry veterans currently operating in stealth mode while the company works toward internal technical milestones. The team will receive notification of the first launch site in January 2020 with ... read more

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