Jet Aircraft - Jet Engines

Jet Engines

Jet engines come in several main types:

  • turbojet
  • turbofan (which come in two main forms low bypass turbofan and high bypass turbofan)
  • rocket

The types are used for different aircraft. Turbojets are seldom used, but was used on Concorde; it has a high exhaust speed and low frontal cross-section, and so is best suited to high-speed flight. Low bypass turbofans have a lower exhaust speed than turbojets and are used for transonic and low supersonic speeds. High bypass turbofans are used for subsonic aircraft and are quite efficient and are widely used for airliners.

Rockets have extremely fast exhaust speeds and are mainly used when high speeds or extremely high altitudes are needed.

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