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A jet fighter has take-off gross weight of 10000 units. Find the appropriate length of the fuselage.

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A jet fighter has take-off gross weight of 10000 units. Find the appropriate length of the fuselage.

(a) 34 unit

(b) 34.5

(c) 35 unit

(d) 35.65

The question was posed to me in semester exam.

My enquiry is from Geometry Sizing topic in division Initial Sizing of Aircraft Design

1 Answer

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Best answer
The correct choice is (a) 34 unit

The best I can explain: Given, take-off gross weight is W0 = 10000 unit.

Now, length is given by,

L = a*W0^c

Now, for jet fighter aircraft a=0.93, c=0.39

Hence, length of fuselage is,

L = 0.93*10000^0.39 = 33.76 = 34unit.

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