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A Jet transport aircraft is flying with crew load of 175kg, payload of 1400kg and fuel weight of 500kg. Find out Fuel to empty weight fraction, if design take-off gross weight of the aircraft is 5600lb.

A Jet transport aircraft is flying with crew load of 175kg, payload of 1400kg and fuel weight of 500kg. Find out Fuel to empty weight fraction, if design take-off gross weight of the aircraft is 5600lb. Correct Answer 1.076

Given, Design take-off gross weight, W0 = 5600lb = 2539.6825kg Crew load = 175kg Payload weight = 1400kg, fuel weight = 500kg Now the design take – off gross weight is given by, W0 = Wcrew + Wpayload + Wfuel + Wempty 2539.682 = 175+ 1400 + 500 + Wempty So, Wempty = 464.682kg Fuel weight fraction = Wfuel / W0 Empty weight fraction = Wempty / W0 Now fuel to empty weight fraction = Wfuel / Wempty = 500/464.682 = 1.076.

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