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Williams Research began developing small gas turbine engines in the 1950s. Its first turbofan, the WR19 (F107 US military designation), was developed in the early-1960s. The uprated F107-WR-103 began in 1980, with a contract for full-scale development received in March 1982, and later redesignated the F112-WR-100.

These engines were designed to propel long-range missiles, for either decoy or attack purposes. In April 1983, the Convair Division of General Dynamics was selected to develop and manufacture the AGM-129A Advanced Cruise Missile (ACM), powered by the F112-WR-100 engine, to arm Boeing B-52H and Northrop B-1B bombers. The ACM was the successor to the AGM-86B air-launched cruise missile, which used the F107-WR-101. The AGM-129A had improved range, accuracy, survivability, and targeting flexibility as compared with the AGM-86B. It also embodied low-observability (stealth) technology. The first production F112 engine was delivered in 1986, and delivery of production AGM-129A missiles began in June 1990.

 Display Status

This object is not on display at the National Air and Space Museum. It is either on loan or in storage.
Object Details
Date Circa 1991 Country of Origin United States of America Type PROPULSION-Turbines (Jet) Manufacturer Williams-Rolls, Inc., Ogden, Utah
 Physical Description Type: Turbofan, two shaft Thrust: 3,740 N (840 lb st) class Fan: Approximate bypass ratio 1:1, 2-stage Compressor: 2 stage axial low-pressure, single stage centrifugal high-pressure Combustor: Folded annular Turbine: Single stage axial high-pressure, 2 stage low pressure Weight: 66 kg (145 lb) Dimensions Length 54.1 cm (21.3 in.) (core), Width 45.7 cm (18.0 in.), Height 40.6 cm (16.0 in.)
 Materials Aluminum, Stainless Steel, Plastic, Rubber, Paint, Inconel, Copper, Cadmium plating, Asbestos
 Inventory Number A19970621000 Credit Line Transferred from the U.S. Air Force Museum. Restricted transfer subject to the U.S. Air Force/Smithsonian Interagency Transfer. Agreement. Data Source National Air and Space Museum Restrictions & Rights Usage conditions apply
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