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What is engine thrust?
Engine thrust is a forward moving force that is created when gases made of air and burnt fuel are accelerated out the back or exhaust end of a jet engine. The act of taking a liquid
(air is a liquid) and speeding it up faster and faster (that
is accelerating it) creates thrust. A jet engineer will tell
you that jet power is measure in terms of " pounds of thrust".
The amount of thrust (or Force) is equal to the amount
of air (usually measured in pounds of air) going into the engine,
multiplied by the change in the speed of the air as it passes
through the engine. [ >> ?'s]
In math this means Force = Mass x Acceleration (see Newton's second law)
How does a jet engine make thrust? Thrust has two ingrediants: air (lots of it!) and accelerating that air to super high speeds.
Air is sucked into the front of the engine and then is squeezed and squeezed until the large amount of air is compressed into a small area. This compressed air next moves into a part of the engine where the compressed air (with lots of oxygen) is mixed with fuel and burned into a exploding fire ball of hot gasses. This is the bang! This very fast moving (accelerated) stream of jet gasses then blows out of the engine as exhaust gas. [ >> ?'s] |
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