What does Gas Turbine Engines cover?
The gas turbine is the powerplant of transport aircraft. This topic covers the working cycle, the main engine sections, the thrust-affecting factors, and the parameters the crew monitor in normal and abnormal operation.
What this subject covers
- The Brayton cycle: intake, compression, combustion, exhaust
- Compressor, combustion chamber and turbine
- Thrust and factors affecting it
- Engine parameters and limitations (EGT, N1/N2)
Study tip
Understand why each parameter matters (e.g. EGT as a health/limit indicator) rather than memorising values — applied questions reward understanding.
Frequently asked questions
What are the four phases of the jet engine cycle?
Intake, compression, combustion and exhaust — the continuous Brayton cycle that produces thrust.
Why is EGT monitored?
Exhaust gas temperature reflects engine condition and has limits; exceeding it risks turbine damage, so it is a key monitored parameter.
