Engineering, 04.03.2020 19:50 jyworthy

An airplane is moving at a constant speed of 600 miles/hr. Each of its four jet engines has an inlet area of 10 ft² and an exit area of 3 ft². The fuel to air ratio is 1 to 40. The exit velocity of the combustion products is 6000 ft/s relative to the plane at a local gage pressure of 4 psi. The plane is at 40,000 ft where the air density is 5.94x10⁴ slugs/ft³. Mass flow rates of the fluids in and out of the engines are 5.23 slugs/s and 5.36 slugs/s respectively.
What is the drag force of the airplane?

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An airplane is moving at a constant speed of 600 miles/hr. Each of its four jet engines has an inlet...

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