Calculate the blade chord at given radius

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Reference no: EM131515282

Question: A four-bladed airscrew is required to propel an aircraft at 125 ms^-1 at sea level, with a rotational speed of 1200 rpm. The blade element at 1.25-m radius has an absolute incidence of 6 degrees, and the thrust grading is 2800 Nm^-1 per blade. Assuming a reasonable value for the sectional lift-curve slope, calculate the blade chord at 1.25-m radius. Neglect rotational interference, sectional drag, and compressibility.

Reference no: EM131515282

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