Quote:
Originally Posted by Loneshark
From the videos I have seen of wind turbines there is no threat to wildlife being sliced up. They spin very slow.
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They appear to be spinning slow, but I forget the terminal velocity at the tips of those blades, but it was really fast. Looked it up last year, see if I can find it
edit to add:
Tip speeds of 200 mph
Turbines used in
for commercial production of electric power are usually three-bladed and pointed into the wind by computer-controlled motors. These have high tip speeds of over 320 km/h
(200 mph), high efficiency, and low torque ripple, which contribute to good reliability. The blades are usually colored white for daytime visibility by aircraft and range in length from 20 to 40 metres (66 to 130 ft) or more. The tubular steel towers range from 60 to 90 metres (200 to 300 ft) tall. The blades rotate at 10 to 22 revolutions per minute. At 22 rotations per minute the tip speed exceeds 90 metres per second
(300 ft/s)