How are aircraft gas turbine engines classified?

1. The type of compressor used.
2. Power usage produces by the engine.

How are aircraft gas turbine engines classified according to the type of compressor?

Compressor types are as follows:
1. Centrifugal flow
2. Axial flow
3. Centrifugal-axial flow.

How are aircraft gas turbine engines classified according to the power usage produced by the engine?

Power usages produced are as follows:
1. Turbojet engines
2. Turbofan engines.
3. Turboshaft engines.