It is a well-established truism in aerospace that leaps in propulsion technology almost always precede major advances in spacecraft or aircraft design. As the clamor for affordable access to space continues to grow, there is mounting interest in the Synergetic Air-Breathing Rocket Engine (Sabre) concept under development by U.K.-based Reaction Engines. This hybrid powerplant is designed to bridge the infamous power gap between air breathers and rockets, potentially enabling a vehicle to ...


Register now for free access to "Air-breathing Sabre Concept Gains Credibility" and other premium content selected daily by our editors. 


Current magazine subscribers: digital access to articles associated with your subscription are now included at no added charge to you. Simply use your subscriber email to log in to your account (or contact us for assistance in updating your account).
Current Aviation Week Intelligence Network (AWIN) enterprise and individual members: please go to for access.


Already registered? here.