In the described turbine engine, what portion of the turbine's power is dedicated to producing thrust?

In the described turbine engine, what portion of the turbine's power is dedicated to producing thrust?

• A. 75%
• B. 25%
• C. 50%
• D. 0%

Answer: (B)

The important idea is that turbine power is mainly used to drive the engine’s moving parts, not to create thrust directly. The turbine extracts energy from the hot gases to turn the compressor and other accessories, keeping the engine running. Only a portion of that energy ends up contributing to pushing the aircraft forward by increasing the exhaust’s momentum. In this described engine, that thrust-related portion is a minority, while most of the turbine power goes into powering the compressor and other drivetrain tasks.

The important idea is that turbine power is mainly used to drive the engine’s moving parts, not to create thrust directly. The turbine extracts energy from the hot gases to turn the compressor and other accessories, keeping the engine running. Only a portion of that energy ends up contributing to pushing the aircraft forward by increasing the exhaust’s momentum. In this described engine, that thrust-related portion is a minority, while most of the turbine power goes into powering the compressor and other drivetrain tasks.