# How much energy is consumed by a aircraft to maintain a speed of sound? [closed]

Let's assume that the aircraft is 1000kg and it is flying in a air density of 1.225kg/m^3 at the speed of sound in air.

Just how much energy does it require per second to maintain flying at this speed.(Please make other necessary assumptions.)

Thank you.

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## closed as off-topic by Chris White, akhmeteli, Nathaniel, Dilaton, Qmechanic♦Jul 10 '13 at 12:40

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Questions that basically come down to "solve this numerical problem for me" usually aren't well received here... did you try to solve this yourself? What did you try? Where did you get stuck? – Kyle Oman Jul 9 '13 at 23:31
Sorry, and thanks for letting me know. – user26863 Jul 10 '13 at 8:44
"Other necessary assumptions?" Okay, the air craft is a long, thin rod about the diameter of a pencil, with tiny wings. No wait, it's a 500 kg jet engine, dragging behind it a large diameter open parachute made of 400 kg of nylon. – Kaz Jul 10 '13 at 22:37