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Aero-Acoustic Propulsion Laboratory (AAPL)
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SHJAR is one of three rigs installed inside the anechoic dome of the AAPL. It can be used to test single stream nozzles up to 2 inches in diameter, Mach 2.0 and 1300°F.

The AAPL dome at night C-1994-586: NATR Noise Acoustic Test Rig in the APPL
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Description
This facility is an acoustically treated geodesic dome. The 130-ft-diameter dome is 65-ft high and acts as a noise barrier, protecting adjacent Glenn buildings and surrounding residential communities from the high levels of noise. The dome's two-foot thick fiberglass wedges located on the walls and floor provide an anechoic environment for acoustic measurement of aeropropulsion components.

Name: Aero-Acoustic Propulsion Laboratory
Aero Test Rigs: Nozzle Acoustic Test Rig (NATR)
Small Hot Jet Acoustic Rig (SHJAR)
Advanced Noise Control Fan (ANCF)
Dimensions: 130 ft in diameter, 65 ft high
Facility Manager (Acting): Stephen.P.Wnuk@nasa.gov

Rendering of the AAPL

Aero-Acoustic Propulsion Laboratory Rendering

 
Further Information
AAPL Fact Sheet
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Last Updated: January 2, 2008