INSUBCONTINENT EXCLUSIVE:
Image copyrightRELImage caption
Sabre would work like a jet engine in the lower atmosphere and like a rocket motor in
the high atmosphere
Reaction Engines Limited (REL), the UK company developing a revolutionary aerospace engine, has
announced investments from both Boeing and Rolls-Royce
REL, based at Culham in Oxfordshire, is working on a propulsion system that is part jet engine, part rocket engine
The company believes it will transform the space launch market and usher in hypersonic travel around the Earth
Included in this sum are contributions from Baillie Gifford Asset Management and Woodford Investment Management
"Rolls-Royce and Boeing - these are really big names, and it's fantastic to be in this position," said REL CEO Mark Thomas
"Rolls are super-positive about the technology
They want us to be independent and innovative, and to push our technology as hard as possible
And Boeing - that's amazing
They are the world's biggest aerospace company, have decades of expertise and future plans that, for us I'm sure, will be really exciting,"
Image copyrightRELImage caption
Pre-cooler development was subject to an independent technical audit from the European
Space Agency
REL is developing what it calls the Sabre engine
This power plant is designed to push a vehicle from a standing start all the way to orbit in a single step
It would work like a conventional jet engine up to about Mach 5.5 (5.5 times the speed of sound) before then transitioning to a rocket mode
for the rest of the ascent
Key technologies include a compact pre-cooler heat-exchanger that can take an incoming airstream of over 1,000C and cool it to -150C in less
This would permit Sabre to use oxygen direct from the atmosphere for combustion instead of carrying it in a tank with the weight penalty
Although Sabre is usually talked about in the context of an orbiting spaceplane, it could also be fitted to a vehicle that flies at very
high speed from point to point on the Earth's surface
This is an application that clearly interests Boeing, whose investment arm, HorizonX Ventures, is driving the tie-up in what is its first
investment in a UK-based company
"As Reaction Engines unlocks advanced propulsion that could change the future of air and space travel, we expect to leverage their
revolutionary technology to support Boeing's pursuit of hypersonic flight," said HorizonX vice president, Steve Nordlund
Image caption
REL should get the keys to its future test facility at Westcott in the summer
Those who
have followed the REL story over the years will be aware that Rolls-Royce is not really a newcomer to the project
The aero-engine giant was involved in Sabre's precursor years - a spaceplane concept back in the 1980s known as Hotol
When that hit technical difficulties, Rolls-Royce let its interest go, as did British Aerospace
Both are now back, the latter in its current guise as BAE Systems
"We are delighted to become a strategic investor in Reaction Engines Limited, an innovative UK company that is helping push the boundaries
of aviation technology," Rolls' CTO Paul Stein said in a statement
"We look forward to working with REL and assisting with the development of their technology, and we plan to incorporate this technology into
our own future products." REL is approaching important demonstration milestones
In Colorado this summer, it will begin further testing of the pre-cooler technology, confronting it with conditions that simulate the very
hot airstreams encountered when vehicles move at hypersonic speeds
This will be done under contract with the US Defense Advanced Research Projects Agency (DARPA)
Image copyrightRELImage caption
Sabre engines could be fitted to reusable flight vehicles in the next decade
Also this summer, REL should take control of its new test facility in the UK at Westcott in Buckinghamshire
It is here that the company will mount a demonstration in 2020 of the full Sabre cycle
Assuming this goes well, REL would then look to put the technology on some kind of flight vehicle
The company is expanding fast with more than 160 staff at its Culham HQ
The new investments will allow it to continue the recruitment."The team here is outstanding
We have some of the most talented engineers I've ever worked with, a high percentage of whom are women engineers; and we have a great
It feels like we're a good-news story and I want to keep it that way," said Mark Thomas.Jonathan.Amos-INTERNET@bbc.co.uk and follow me on
