What type of engines do high speed airplanes use?

High speed airplanes typically use jet engines. Jet engines are a type of internal combustion engine that uses the expansion of hot gases to create thrust. Jet engines are more powerful and efficient than piston engines, and they can produce much higher speeds.

There are two main types of jet engines: turbojets and turbofans. Turbojets are the simplest type of jet engine, and they consist of a compressor, a combustor, and a turbine. The compressor compresses air, which is then mixed with fuel in the combustor. The combustor burns the fuel, which creates hot gases. The hot gases expand through the turbine, which drives the compressor and also creates thrust.

Turbofans are a more advanced type of jet engine, and they consist of a fan, a compressor, a combustor, and a turbine. The fan is located at the front of the engine, and it draws air in. The air is then compressed by the compressor, and it is then mixed with fuel in the combustor. The combustor burns the fuel, which creates hot gases. The hot gases expand through the turbine, which drives the fan and the compressor. The fan also helps to produce thrust by accelerating the air that flows through it.

Turbofans are more efficient than turbojets, and they can produce higher thrust. This makes them the ideal engine for high speed airplanes.