The General Aviation Propulsion (Gap) Program


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The General Aviation Propulsion (GAP) Program Turbine Engine Element focused on the development of an advanced small turbofan engine. Goals were good fuel consumption and thrust-to-weight ratio, and very low production cost. The resulting FJX-2 turbofan engine showed the potential to meet all of these goals. The development of the engine was carried through to proof of concept testing of a complete engine system. The proof of concept engine was ground tested at sea level and in altitude test chambers. A turboprop derivative was also sea-level tested. Glenn Research Center TURBOFAN ENGINES; TURBINE ENGINES; ENGINE DESIGN; GENERAL AVIATION AIRCRAFT; PROPULSION; THRUST-WEIGHT RATIO; ALTITUDE TESTS; PRODUCTION COSTS; TEST CHAMBERS; FUEL CONSUMPTION







NASA's First A


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The Power for Flight


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The NACA and aircraft propulsion, 1915-1958 -- NASA gets to work, 1958-1975 -- The shift toward commercial aviation, 1966-1975 -- The quest for propulsive efficiency, 1976-1989 -- Propulsion control enters the computer era, 1976-1998 -- Transiting to a new century, 1990-2008 -- Toward the future










A Review of United States Air Force and Department of Defense Aerospace Propulsion Needs


Book Description

Rocket and air-breathing propulsion systems are the foundation on which planning for future aerospace systems rests. A Review of United States Air Force and Department of Defense Aerospace Propulsion Needs assesses the existing technical base in these areas and examines the future Air Force capabilities the base will be expected to support. This report also defines gaps and recommends where future warfighter capabilities not yet fully defined could be met by current science and technology development plans.







Aeronautical Research at NASA


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