Rolls-Royce Olympus (originally the Bristol B.E.10 Olympus) was the world's first two-spool axial-flow turbojet aircraft engine, originally developed and produced by Bristol Aero Engines. First running in 1950, its initial use was as the power plant of the Avro Vulcan V bomber. The design was further developed for supersonic performance as part of the BAC TSR-2 program. Later it saw production as the Rolls-Royce/Snecma Olympus 593, the powerplant for Concorde SST. Versions of the engine were licensed to Curtiss-Wright in the USA as the TJ-32 or J67 (military designation) and the TJ-38 'Zephyr'. The Olympus was also developed with success as a marine and industrial gas turbine.