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Aviation History
1959
1959 - 1343.PDF
17,OOO-lb THRUST without reheat High-thrust version of the Bristol Siddeley Olympus in productionfor AvroVulcan Mark2 During its two years in service with the Vulcan, the Olympus has earned high praise from pilots and ground crews. According to an official report, "the Olympus sets a standard of handling at altitude which has never been equalled by any other turbine engine." Pilots have fre- quently carried out "slam" accelerations and decelerations at the highest altitudes at which the aircraft has flown— the exact height cannot be revealed, but is well over 50,000 ft. In reliability, too, the Olympus has achieved an unsur- passed standard. Only routine attention is required between installation and removal for overhaul—snags have been held to an all-time low. Unscheduled removal of engines has been remarkably low, too, and overhaul life already compares favourably with other military powerplants. Vulcans have made extensive overseas flights to many countries, including East Africa and Rhodesia, South America, Canada and the United States of America. Such was the confidence in the Olympus that on the great major- ity of these flights no provision was considered necessary for any engine spares whatsoever away from the aircraft's home base. Continuing development, increasing thrust First Vulcans went into service with the Olympus 101, rated at 11,000 lb. Later, in improved versions, thrust increased from 12,000 lb of the Mark 102 to an official type-test rating of 17,000 1b without reheat for the Olympus 201 in production for the Vulcan Mark 2. This engine, with Bristol Solar fully variable reheat, is running on the test bench at 24,000-lb thrust. Further Bristol Siddeley Olympus versions are already under development which enhance still further the engine's qualities of light weight, high power, and low fuel con- sumption. Bristol Siddeley ENGINES LIMITED JiT
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