After the first instance of powered flight, a large number of jet engine designs were suggested. René Lorin, Morize, … See more

Most people use the term 'jet aircraft' to denote gas turbine based airbreathing jet engines, but rockets and scramjets are both also propelled by jet propulsion.
Cruise missiles are single-use unmanned jet aircraft, po… See more

Because of the way they work, the typical exhaust speed of jet engines is transonic or faster, therefore most jet aircraft need to fly at high speeds, either supersonic or speeds just below the speed of sound ("transonic") so as to ac… See more

There are several types of engine which operate by expelling hot gas:
• turbojet
• turbofan (which come in two main forms low bypass turbofan and high bypass turbofan)… See more

Jet aircraft fly considerably differently than propeller aircraft.
One difference is that jet engines respond relatively slowly. This complicates takeoff and landing maneuvers. In particular, during take… See more

For a long range jet operating in the stratosphere, the speed of sound is constant, hence flying at fixed angle of attack and constant Mach number causes the aircraft to climb, without changing the value of th… See more