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Jet engines

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lovejoy0120 | 15:01 Wed 31st May 2006 | How it Works
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How does a jet engine get 40 tonnes of the ground at 180 mph in 2500 m from a standing start ?


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They give the aircraft enough forward speed to create lift at the wings.

And they do that by producing an enormous amount of thrust measured in pounds. The formula is: Thrust= weight of air in pounds per second X velocity divided by 32.2, which is the normal acceleration due to gravity in feet per second. Thus an unaccelrated turbojet engine can continously produce a large amount of thrust from a relatively small, light weight engine. Large engines such as on the Boeing 777 produce nearly 128,000 pounds of thrust. at sea level...
Only 40 tonnes? What about the heavy aircraft? LOL

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