Acoustics

Dec 8, 2006 - 7:33 AM
AgustaWestland and Eurocopter might be competitors in the helicopter market, but they seem to be decidedly good friends when it comes to defining rotorcraf
Sep 25, 2006 - 6:50 AM
New amendments to Part 36 require a minimum 3 dB–noise reduction for small single-engine propeller aircraft– including turboprops–weighing more than 3,307
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