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The installed net propulsive force is defined as _________

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in Aircraft Design by (701k points)
The installed net propulsive force is defined as _________

(a) installed engine thrust minus the drag due to inlet, nozzle and throttle dependent trim drag

(b) uninstalled thrust plus drag due to inlet and nozzle

(c) installed lift by drag

(d) installer wing loading

I have been asked this question in exam.

This interesting question is from Propulsion topic in portion Propulsion of Aircraft Design

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Correct answer is (a) installed engine thrust minus the drag due to inlet, nozzle and throttle dependent trim drag

Explanation: The installed net propulsive force is defined as installed engine thrust minus the drag due to inlet, nozzle and throttle dependent trim drag. This thrust value can be used to determine aircrew performance. Wing loading is defined as the ratio of weight of the aircraft to the reference area.

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