NASA - National Aeronautics and Space Administration

May 17 and 18, 2008
11 a.m. to 7 p.m.

Some of the world's most advanced aircraft noise-reduction ideas are developed and tested in the Aero-Acoustic Propulsion Laboratory.

Image right: One of three test rigs in the Aero-Acoustic Propulsion Lab, the Nozzle Acoustic Test Rig is used to evaluate jet engine nozzle noise at speeds up to 220 miles per hour. Credit: NASA

Unique in size and appearance, this world-class facility stands 65-feet high and 130 feet in diameter. It has 17,000 two-foot-thick fiberglass wedges mounted on its walls and floor. Designed to prevent echoes and reverberations, the wedges give the facility a futuristic, maze-like appearance.

Don't miss your chance to come inside and see how Glenn engineers are reducing ground noise around airports and cabin noise on airplanes.

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