The feasibility of a one-passenger VTOL (vertical takeoff and landing) craft is under review. The preliminary design
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The feasibility of a one-passenger VTOL (vertical takeoff and landing) craft is under review. The preliminary design calls for a small engine with a high power-to-weight ratio driving an air pump that draws in air through the 70° ducts with an inlet velocity v = 40 m/s at a static gage pressure of −1.8 kPa across the inlet areas totaling 0.1320 m2. The air is exhausted vertically down with a velocity u = 420 m/s. For a 90-kg passenger, calculate the maximum net mass m of the machine for which it can take off and hover. (See Table D/1 for air density.)
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To calculate the maximum net mass of the machine we need to consider the forces acting on it during ...View the full answer
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Related Book For 
Engineering Mechanics Dynamics
ISBN: 9781118885840
8th Edition
Authors: James L. Meriam, L. G. Kraige, J. N. Bolton
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