What type of engine accelerates and compresses air with rotor and stator blades before combustion?

The correct answer describes a turbojet engine, which is specifically designed to accelerate and compress incoming air using a combination of rotor and stator blades. In a turbojet, the air enters the engine and passes through the compressor section, which consists of multiple rotor blades that spin at high speeds to draw in and compress the air. This compressed air is then mixed with fuel and ignited in the combustion chamber, where the rapid expansion of gases produces thrust.

Turbojets are characterized by their ability to generate a high-speed jet of exhaust that propels the engine forward, making them particularly efficient at high speeds and altitudes. The process of using rotor and stator blades for air compression is critical in achieving the high pressure needed for efficient combustion and thrust generation in turbojets.

In contrast, other engine types such as piston engines and turboprops operate on different principles. Piston engines use reciprocating motion and are typically found in smaller aircraft, while turboprops leverage a gas turbine engine to turn a propeller for thrust, combining both jet engine and propeller technology. Jet engines can refer generically to designs that include turbojets, turbofans, and others, but the specificity of the question pertains primarily to the turbojet design.