PPRuNe Forums - View Single Post - S92 Rotor Tip Speed

10th Aug 2007, 17:26

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GoodGrief

Join Date: Jul 2004

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I don't fly those big bombers

But I'd love to (lacking JAA-IR).
Here's my guess:
Rotor diameter = 17,17 meters
RRPM = 258
Diameter x PI = circumference = 53,941 meters.
at RRPM = 1 Rev per minute that's 3,236 km/h (53,941x60/1000)
x 258 (RRPM ) gives 835 km/h.

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