What factor primarily affects the thrust produced by a gas turbine?

The thrust produced by a gas turbine is influenced by several interrelated factors, making the choice of "all of the above" the most comprehensive response.

Compressor efficiency is important because it determines how effectively the incoming air is compressed. A highly efficient compressor increases the pressure and temperature of the air, which in turn allows for more efficient combustion of fuel, ultimately enhancing thrust output.

Fuel flow rate is another critical factor because it directly impacts the amount of energy produced in the combustion chamber. An optimal flow rate ensures that the right amount of fuel is mixed with air for combustion, leading to the production of high-energy exhaust gases that create thrust.

Exhaust gas temperature is vital as it provides information on the energy contained in the exhaust stream that is released through the turbine. Higher temperatures generally indicate more energy available for conversion into thrust. The efficiency of the turbine in harnessing that energy for propulsion also plays a role.

Since all these factors are interconnected and contribute to the overall thrust generation in a gas turbine, recognizing their collective impact is essential for understanding turbine performance.