How can fighter jets fly upside-down in regards to the fuel intake

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Me and my brother are at a loss, we understand the basics of how the upside down thing works, but how does the engine get fuel when the tank is turned around, is it a vacoom and how would that work or is the intake from the tank in the back of the it, so the fuel is forced into the engine? Thanks.

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24 Answers

Anonymous 0 Comments

Fighter jets use a pump to keep constant pressure, regardless of orientation. There will be some variation based on the forces felt by the plane, but if the pressure is high enough then those are negligible. 

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