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 62° ducts with an inlet velocity v = 45 m/s at a static gage pressure of -1.246 kPa across the inlet areas totaling 0.1355 m². The air is exhausted vertically down with a velocity u = 408 m/s. For a 82-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.)

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 62° ducts with an inlet velocity v = 45 m/s at a static gage pressure of -1.246 kPa across the inlet areas totaling 0.1355 m². The air is exhausted vertically down with a velocity u = 408 m/s. For a 82-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.)

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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