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Question: questions 1 given a helicopter of weight w 2650...

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QUESTIONS: 1- Given a helicopter of weight, W - 2,650 kg, calculate the power required in hover and up to 204 m/min axial rate-of-climb. The radius of the main rotor is 6.9 m and the rotor has a figure of merit of 0.76. Assume sea-conditions. (a) Find power required for hover and at this climb rate. (b) If this helicopter is in forward flight with of Vo 72 kmph, assuming the rotor in horizontal position; but with an angle of incidence - 20° between the free stream velocity and the disk, find the induced velocity, approximate inflow ratio by some iterations and rotor power in forward flight? (40 points)

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