Space

December 7, 2012

Breakthrough jet/rocket engine announced

Tags:
Raphael Jaffe
Staff writer


Reaction Engines Ltd. of Great Britain has announced successful tests of its light weight heat exchanger, a critical component of its Synergetic Air-Breathing Rocket Engine.

The engine functions as both an air breathing jet, and then switches to use stored liquid oxygen, as does a rocket engine. Their studies show that single stage to orbit rocketry is possible with that engine. Also, an aircraft with such rockets can reach Mach 5, so that a journey halfway around the world would only require 4 or 5 hours.

The SABRE engine incorporated in a new aircraft, known as Skylon, could potentially be used to deliver satellites to orbit, and would then return to earth. The engines are designed to operate much like a conventional jet engine at up to around Mach†5.5 at 26 km altitude. Then, air inlet closes and the engine operates as a highly efficient rocket to orbital speed. The proposed SABRE engine is not a scramjet, but a jet engine running combined cycles of a precooled jet engine, rocket engine and ramjet. The key technology for this type of precooled jet engine is a light weight heat exchanger.

In a Nov. 28 press release, Reaction Engines announced successful tests of such a heat exchanger. More than 100 test runs have been completed. The tests were funded and overseen by the European Space Agency. The heat exchanger uses liquid helium to cool air from 1,000 degrees Celsius to about minus 150 degrees Celsius. And there is no frost problem with the exchanger.




All of this week's top headlines to your email every Friday.


 
 

 

Headlines May 20, 2015

News: Top secret X-37B space plane blasts off on fourth mission - One of the most mysterious craft ever to go into orbit blasted off on a top secret mission this morning.   Business: R&D budget request rises for U.S. Special Operations - The leadership of U.S. Special Operations Command said the force and its acquisitions –...
 
 

News Briefs May 20, 2015

North Korea ‘many years’ from developing submarine missile A top U.S. military officer says North Korea is many years away from being able to launch ballistic missiles from a submarine. But vice chairman of the U.S. Joint Chiefs of Staff, Adm. James Winnefeld, said May 19 such missiles could eventually present a hard-to-detect danger to...
 
 
Boeing photograph

Boeing-upgraded French AWACS take flight

Boeing photograph A French AWACS aircraft patrols the skies as part of a routine mission. The French AWACS fleet is in the midst of the Mid-Life Upgrade that modernizes the capabilities on board. Initial operating capability of...
 

 
CAE photograph

MH-60R FMS team supports Royal Australian Navy

CAE photograph A military representative ìfliesî the MH-60R Seahawk tactical operational flight trainer over Sydney, Australia, during a recent simulation event. In February, the Royal Australian Navy procured a trainer, simi...
 
 
boeing-E4B

Boeing returns Air Force E-4B aircraft to service ahead of schedule

Boeing recently completed maintenance on a U.S. Air Force E-4B advanced airborne command post earlier than planned, enabling the Air Force to quickly return the vital aircraft to operational service. It was the first E-4B servi...
 
 
Photograph by Linda KC Reynolds

Olympic Athletes make it special for everyone

A Special Olympics athlete is presented a medal by TSgt. Roger Rouse, assistant NCOIC at F-35 Avionics. More than 300 athletes and 80 military personnel participated in the event at Palmdale High School. Sincerely appreciated, ...
 




0 Comments


Be the first to comment!


Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>