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?

Answers: 3

Show answers

Other questions on the subject: Engineering

Engineering, 03.07.2019 14:10, aliceohern

The y form of iron is known as: a) ferrite b) cementite c) perlite d) austenite

Answers: 3

continue

Engineering, 04.07.2019 18:10, dval1146

You are making beer. the first step is filling the glass carboy with the liquid wort. the internal diameter of the carboy is 15 in., and you wish to fill it up to a depth of 2 ft. if your wort is drawn from the kettle using a siphon process that flows at 3 gpm, how long will it take to fill?

Answers: 1

continue

Engineering, 04.07.2019 18:20, hayleymckee

Steam enters a converging nozzle at 3.0 mpa and 500°c with a at 1.8 mpa. for a nozzle exit area of 32 cm2, determine the exit velocity, mass flow rate, and exit mach number if the nozzle: negligible velocity, and it exits (a) is isentropic (b) has an efficiency of 94 percent

Answers: 2

continue

Engineering, 04.07.2019 18:20, cdyshaylia55

Water vapor initially at 10 bar and 400 °c is contained within a piston-cylinder assembly. the water lost heat to the surrounding according to isochoric (iso-volumetric) process until its temperature is 150 °c. the water is then condensed isothermally to saturated liquid. for the water as a system, calculate the work in kj/kg

Answers: 2

continue

You know the right answer?

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