Hush House contains engine roar

A U.S. Air Force Airman inspects an F-22 Raptor engine at Langley Air Force Base, Va., July 22, 2015. Propulsion technicians check engines for faults or leaks prior to performing tests. (U.S. Air Force photo by Senior Airman Kayla Newman/Released)

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Hush House contains engine roar

Virginia Air National Guard Master Sgt. Russell Tilley, 192nd Maintenance Squadron aerospace propulsion technician, conducts a pre-test inspection on a Pratt and Whitney F119 engine at Langley Air Force Base, Va., July 22, 2015. The engine powers the F-22 Raptor and produces more thrust than any other current fighter jet engine. (U.S. Air Force photo by Senior Airman Kayla Newman/Released)

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Hush House contains engine roar

A U.S. Air Force Airman prepares for an engine run at Langley Air Force Base, Va., July 22, 2015. Within the testing cab, Airmen use computer systems linked to the engines to perform automatic or manual tests. (U.S. Air Force photo by Senior Airman Kayla Newman/Released)

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Hush House contains engine roar

Virginia Air National Guard Tech. Sgt. Michael Trahant, 192nd Maintenance Squadron aerospace propulsion technician, uses a computer system to perform an engine test run inside a “hush house” at Langley Air Force Base, Va., July 22, 2015. The system provides readings from the test and submits codes to determine faults within the engine. (U.S. Air Force photo by Senior Airman Kayla Newman/Released)

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Hush House contains engine roar

A U.S. Air Force Airman inspects the test site prior to an engine run at Langley Air Force Base, Va., July 22, 2015. The engine run was held in the 1st Maintenance Group’s “hush house,” a noise suppression system that prevents testing from disturbing the installation or the surrounding community. (U.S. Air Force photo by Senior Airman Kayla Newman/Released)

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Hush House contains engine roar

A U.S. Air Force Airman inspects the test site prior to an engine run at Langley Air Force Base, Va., July 22, 2015. The engine run was held in the 1st Maintenance Group’s “hush house,” a noise suppression system that prevents testing from disturbing the installation or the surrounding community. (U.S. Air Force photo by Senior Airman Kayla Newman/Released)

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Hush House contains engine roar

A Pratt and Whitney F119 engine performs an engine run at the 1st Maintenance Group propulsion flight Hush House at Langley Air Force Base, Va., July 22, 2015. The engine is connected to all electrical and mechanical propulsion systems as if it were installed in an aircraft, and is tested at maximum capability. (U.S. Air Force photo by Senior Airman Kayla Newman/Released)

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Hush House contains engine roar

U.S. Air Force Senior Airman Michael Smith, 1st Maintenance Group aerospace propulsion technician, observes an engine run at Langley Air Force Base, Va., July 22, 2015. During the run, technicians check the engine for any leaks or discrepancies that require repair. (U.S. Air Force photo by Senior Airman Kayla Newman/Released)

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Hush House contains engine roar

The 1st Maintenance Group propulsion flight conducts engine runs at their “hush houses” at Langley Air Force Base, Va., July 22, 2015. The hush house is located in an isolated environment and adheres to regulations that ensure the safety of personnel and equipment. (U.S. Air Force photo by Senior Airman Kayla Newman/Released)

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Hush house contains engine roar

Virginia Air National Guard Master Sgt. Russell Tilley, 192nd Maintenance Squadron aerospace propulsion technician, performs pre-test inspections on a Pratt and Whitney F119 engine at Langley Air Force Base, Va., July 22, 2015. The engine of the F-22 Raptor produces more thrust than any other current fighter jet engine. (U.S Air Force photo by Airman 1st Class Derek Seifert/Released)

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Hush house contains engine roar

Virginia Air National Guard Master Sgt. Russell Tilley, 192nd Maintenance Squadron aerospace propulsion technician, checks wires for possible damage during a pre-test inspection on an F-22 Raptor engine at Langley Air Force Base, Va., July 22, 2015. Propulsion technicians conduct tests to ensure the engine is working properly. (U.S. Air Force photo by Airman 1st Class Derek Seifert/Released)

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Hush house contains engine roar

U.S. Air Force Senior Airman Michael Smith, 1st Maintenance Squadron aerospace propulsion technician, observes an automated test on a Pratt and Whitney F119 engine at Langley Air Force Base, Va., July 22, 2015. The automated tests are used to find faults and identify the specific repairs needed. (U.S. Air Force photo by Airman 1st Class Derek Seifert/Released)

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Hush house contains engine roar

The 1st Maintenance Squadron propulsion flight uses a control panel to lift the side doors that allow air into the “hush house” for the F-22 Raptor engine to breathe at Langley Air Force Base, Va., July 22, 2015. The engine allows the Raptor to reach supersonic speeds without the use of afterburner. (U.S. Air Force photo by Airman 1st Class Derek Seifert/Released)

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Hush house contains engine roar

The 1st Maintenance Squadron propulsion flight’s testing facility, or “hush house,” is used to ensure the Pratt and Whitney F119 engine is working at its full capabilities before installing on a F-22 Raptor at Langley Air Force Base, Va., July 22, 2015. The F119 engine is the only operational fifth-generation fighter engine and the most advanced production engine. (U.S. Air Force photo by Airman 1st Class Derek Seifert/Released)

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Hush house contains engine roar

U.S. Air Force Senior Airman Michael Smith, 1st Maintenance Squadron aerospace propulsion technician, checks an F-22 Raptor engine for leaks during an engine run at Langley Air Force Base, Va., July 22, 2015. Smith inspects the engine after each test to ensure no further repairs are required. (U.S Air Force photo by Airman 1st Class Derek Seifert/Released)

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USAF. (U.S. Air Force Graphic by Rosario "Charo" Gutierrez)

Langley Hush House keeps jets flying

Published July 23, 2015

USAF. (U.S. Air Force Graphic by Rosario "Charo" Gutierrez)

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Hush House contains engine roar

Hush House contains engine roar

Hush House contains engine roar

Hush House contains engine roar

Hush House contains engine roar

Hush House contains engine roar

Hush House contains engine roar

Hush House contains engine roar

Hush House contains engine roar

Hush house contains engine roar

Hush house contains engine roar

Hush house contains engine roar

Hush house contains engine roar

Hush house contains engine roar

Hush house contains engine roar