How Turbojet Engines Work

A turbojet is a type of jet engine that uses a spinning turbine to compress air and mix it with fuel, producing a high-speed exhaust gas that propels the aircraft forward. The turbine is driven by a gas turbine, which is fueled by aviation fuel or other combustible fluids.

The basic operation of a turbojet engine is as follows:

1. Air enters the inlet and is compressed by the compressor blades.
2. The compressed air is mixed with fuel in the combustion chamber and ignited, producing a high-temperature and high-pressure gas flow.
3. The hot gas flow then expands through the turbine, which is connected to the compressor via a shaft. As the gas flows through the turbine, it transfers its energy to the turbine blades, causing them to spin.
4. The spinning turbine drives the compressor, which compresses more air and continues the cycle.
5. The exhaust gases are expelled out of the back of the engine, producing a high-speed exhaust that propels the aircraft forward.

Turbojet engines are commonly used in high-speed aircraft such as fighter jets, business jets, and some commercial airliners. They are known for their high power-to-weight ratio and their ability to produce a large amount of thrust relative to their size. However, they are not as efficient as other types of jet engines, such as turbofans, which use a larger fan to provide more thrust at lower speeds.