A high pressure ratio is desirable for jet engines because it results in higher engine efficiency and higher thrust. However, a high pressure ratio also increases the engine's weight and complexity.
The pressure ratio of a jet engine is typically between 10:1 and 40:1. The pressure ratio of a turbofan engine is typically lower than that of a turbojet engine, because the fan bypasses some of the air around the compressor.
The pressure ratio of a jet engine is an important parameter that affects the engine's performance. It is a key consideration when designing and selecting a jet engine for a particular application.
