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How A Jet Works
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How A Jet Works

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  • 1. How a Jet Works By: Devin Crilly and Maxwell Bryant
  • 2. How a Jet Works By: Devin Crilly and Maxwell Bryant
  • 3. Questions we had
    • How does a jet stay airborne?
    • What does a jet have that a car doesn’t have that makes it go so fast?
    • Where do they get the parts they need?
    • What are all the parts and what does each part do?
  • 4. How a jet stays airborne the wing
    • The wing is a curved airfoil. On most jets, the bottom is flat and the top is curved. Wind flows over the top more quickly which causes the it to thin out. Because the air is thinner because of the curved top it sucks in kind of like a vacuum. It sucks up on the wing, making it raise and stay airborne. The flow of air off the wing angles downward off the wing, shooting down behind it. for every action, there is an equal and opposite reaction. For example, if you put a glass on the table, the weight of the glass pushes down on the table and the table pushes back up on the glass with equal and opposite force, supporting it. as the airfoil pushes air downwards, that air pushes the airfoil upwards. This, along with the Bernoulli Effect, keeps the jet airborne.
  • 5. What makes a jet different from a car. That makes the jet go so much faster
    • Jets have a different type of engine called a turbo-engine. Air is taken in from an opening in the front of the engine the air is compressed to 3 to 12 times its original pressure in a compressor. Fuel is added to the air and burned in a combustion chamber to raise the temperature of the fluids to about 1,100°F to 1,300° F. The resulting hot air is passed through a turbine, which drives the compressor. If the turbine and compressor are efficient, the pressure at the turbine discharge will be nearly twice the atmospheric pressure, and this excess pressure is sent to the nozzle to produce a high-power stream of gas which produces a boost.
  • 6. Where to get the parts for a jet
    • www.ILSmart.com
    • www.Trade-A-plane.com
    • www.PartsLogistics.com
  • 7. Jet Parts Engine-Turbofan
    • A turbofan engine is a turbojet engine in which additional thrust is gained by extending a portion of the compressor or turbine blades outside the inner engine casing. These extended blades propel air around the engine core, between the inner and outer engine casings. This air is not combusted but does provide additional thrust since it is compressed by the blades.
  • 8. Jet Parts Engine-Turboprop
    • A turboprop engine is a turbojet engine in which a portion of the exhaust energy is used to drive a propeller. The engine's thrust is therefore generated by a combination of the propeller's thrust and the jet engine
  • 9. Jet Parts Engine-Ramjet
    • A ramjet engine is the simplest type of jet engine since it has no moving parts. The engine is basically a specially-shaped duct open at both ends, with the air necessary for combustion being compressed by the forward motion of the engine. Fuel is sprayed into the air stream and the mixture is ignited. The high-pressure air coming into the combustion chamber keeps the it from going out the wrong way
    Exhaust nozzle                                                                                                                                                                                                      Air Intake   Combustion Chamber  
  • 10. Jet Parts Engine-Scramjet
    • A scramjet or (supersonic combustion ramjet), engine is similar to a ramjet, but is designed to operate at well over five times the speed of sound or at hypersonic velocities. As with ramjets, aircraft powered by scramjets must first be brought up to required speed by some other means of propulsion. Unlike ramjets, which slow the supersonic air stream entering the inlet to subsonic speeds before combustion, a scramjet combusts the supersonic air stream without slowing it.