Jet
engines move the aircraft forward with a great force that is produced by
a tremendous thrust and causes the plane to fly very fast. Aircrafts
are propelled by accelerating a fluid in the opposite direction
to motion. Generally a propeller-driven engine accomplishes this by
slightly accelerating a large mass of fluid, but jet engines
accomplishes this by greatly accelerating a small mass of fluid.
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http://www.wonderwhizkids.com/index.php/aircrafts
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