The Flettner rotor sailboat in Fig. E8.3 has a water drag coeffi cient of 0.006 based on
Chapter 8, Problem p8.52(choose chapter or problem)
The Flettner rotor sailboat in Fig. E8.3 has a water drag coeffi cient of 0.006 based on a wetted area of 45 ft2 . If the rotor spins at 220 r/min, fi nd the maximum boat velocity that can be achieved in a 15-mi/h wind. What is the optimum angle between the boat and the wind?
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