Hush House

A jet engine runs at full power in the hush house at Seymour Johnson Air Force Base, N.C., April 7, 2009. The engine, in operation since 1985, can produce 23,770 pounds of thrust at maximum power and can be used in the F-16 Falcon and the F-15 Strike Eagle. (U.S. Air Force photo by Airman 1st Class Whitney S. Lambert)

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Hush House

Staff Sgt. Emily Thompson, 4th Component Maintenance Squadron, inspects the main fuel control feedback shaft in the hush house at Seymour Johnson Air Force Base, N.C., April 6, 2009. Hush house is a term for aircraft power plant testing facilities used to reduce the noise associated with running engines. (U.S. Air Force photo by Airman 1st Class Whitney S. Lambert)

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Hush House

Staff Sgts. Emily Thompson and Robert Stewart, and Tech. Sgt. John Hamrick, 4th Component Maintenance Squadron, transfer a jet engine from a trailer in preparation for testing in the hush house at Seymour Johnson Air Force Base, N.C., April 6, 2009. The trailers are used to lift engines to the proper height for testing. (U.S. Air Force photo by Airman 1st Class Whitney S. Lambert)

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Hush House

Senior Airman Isaiah Smith, 4th Component Maintenance Squadron, aligns an engine during a test in the hush house at Seymour Johnson Air Force Base, N.C., April 6, 2009. Engines are tested in the hush house when brand new and after repairs. (U.S. Air Force photo by Airman 1st Class Whitney S. Lambert)

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Hush House

Staff Sgt. Robert Stewart, 4th Component Maintenance Squadron, fills an oil tank in the hush house at Seymour Johnson Air Force Base, N.C., April 6, 2009. Pumping the oil cart allows Sergeant Stewart to verify there is proper lubrication to run an engine test. (U.S. Air Force photo by Airman 1st Class Whitney S. Lambert)

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Hush House

Staff Sgt. Douglas Rath, 4th Component Maintenance Squadron, tightens a feedback cable in the hush house at Seymour Johnson Air Force Base, N.C., April 6, 2009. A loose feedback cable can cause the engine to run hotter than normal or not perform at its peak. (U.S. Air Force photo by Airman 1st Class Whitney S. Lambert)

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Hush House

Senior Airman Isaiah Smith, 4th Component Maintenance Squadron, sprays water on the hush house floors to remove loose debris at Seymour Johnson Air Force Base, N.C., April 6, 2009. Before running the engine test Airmen must ensure no debris is present that will damage the engine. (U.S. Air Force photo by Airman 1st Class Whitney S. Lambert)

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Hush House

Staff Sgts. Emily Thompson and Douglas Rath, 4th Component Maintenance Squadron, watch engine monitors in the hush house at Seymour Johnson Air Force Base, N.C., April 7, 2009. The monitors provide information on the engine‘s sensors, pressure, and temperature. (U.S. Air Force photo by Airman 1st Class Whitney S. Lambert)

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Hush House

Published April 10, 2009