Question: One of the largest wind generators in operation today is the ERDA/NASA two blade propellers HAWT in Sandusky, Ohio. The blades are 125 ft in

One of the largest wind generators in operation today is the ERDA/NASA two blade propellers HAWT in Sandusky, Ohio. The blades are 125 ft in diameter and reach maximum power in 19 mi/h winds. For this condition estimate
(a) The power generated in kW,
(b) The rotor speed in r/min, and
(c) The velocity V2 behind the rotor.

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