SABRE is an idea under development by which Oxfordshire-based manufacturer?
SABRE (rocket engine): SABRE (Synergistic Air-Breathing Rocket Engine) is a concept under development by Reaction Engines Limited for a hypersonic precooled hybrid air-breathing rocket engine. Reaction Engines Limited: Reaction Engines Limited (REL) is a British aerospace manufacturer based in Oxfordshire, England.
Reaction Engines Limited