What is the purpose of the transmission shaft in the turbine system?

• A. Stores hydraulic fluid for actuators.
• B. Transmits the Power of the turbine to the main transmission.
• C. Provides electrical power to the main bus.
• D. Receives bleed air for cabin pressurization.

Answer: (B)

The main idea here is how power moves from the turbine to the rest of the drivetrain. The transmission shaft acts as the mechanical link that carries the turbine’s rotating power to the main transmission, transferring torque and speed so the propulsion or powertrain can do its job. It must handle the forces between the turbine and gearbox and keep things aligned for smooth operation. So, the shaft’s job is to transmit the turbine’s power to the main transmission. The other options describe different systems: storing hydraulic fluid happens in a hydraulic reservoir, providing electrical power comes from generators to the main bus, and receiving bleed air is part of the cabin pressurization system.