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Registered
Join Date: May 2000
Location: Los Alamos, NM, USA
Posts: 6,044
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Turbine sound? Do you know what a gas turbine sounds like? I've heard the "whine" of aircraft turbines, stationary power gas turbines and truck mounted high pressure frac pump turbines. None of them sound like a 911 engine. For one they're a hell of a lot louder plus the frequency is higher. Having said that, I would guess the characteristic 911 sound is actually a mixture of the fan noise, the exhaust note and timing gear drive train with additional interesting effects from the sound bouncing off the ground or close adjacent vertical surfaces. Cheers, Jim
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