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If a Maneuver requires specific power of 1200 unit then, find the approximate value of fuel specific energy. Given thrust as 1000 unit and tsfc of 0.00042 unit.

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If a Maneuver requires specific power of 1200 unit then, find the approximate value of fuel specific energy. Given thrust as 1000 unit and tsfc of 0.00042 unit.

(a) 2857.14 unit

(b) 1568.45 unit

(c) 4500 unit

(d) 6789 unit

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This question is from Flight Mechanics topic in division Performance and Flight Mechanics of Aircraft Design

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The correct choice is (a) 2857.14 unit

For explanation I would say: Fuel specific energy = specific power / (thrust*tsfc)

= 1200/1000*0.00042 = 2857.14 unit.

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