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Old 10-12-2008, 11:25 PM   #9 (permalink)
Big Dave
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Join Date: Jan 2008
Location: Steppes of Central Indiana
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The Red Baron - '00 Ford F-350 XLT
90 day: 27.99 mpg (US)

Impala Phase Zero - '96 Chevrolet Impala SS
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If you have relative motion in the air you have a bird-mincing machine. Actually, you don't even need relative motion. Radio and TV towers, with their guy wires, are murder on birds.

Even a big,slow-moving prop will have tip speeds nearing the Mach. That's where the sound comes from.

You go resigning the wind turbune in a futile effort to save a few birds and you poison the whole idea
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