What is the primary function of the Reduction Gearbox in the engine system?

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Multiple Choice

What is the primary function of the Reduction Gearbox in the engine system?

Explanation:
The reduction gearbox serves to match speeds between the turbine and the drive system. Turbines turn at very high RPM, but the transmission shaft and downstream components require a slower, torque-rich output. The gearbox uses gears to reduce the power turbine speed while increasing torque, and it transfers that power forward to the transmission shaft. This arrangement enables efficient, controlled propulsion without needing to drive the transmission at turbine-speed. It does not house fuel control components, which are separate.

The reduction gearbox serves to match speeds between the turbine and the drive system. Turbines turn at very high RPM, but the transmission shaft and downstream components require a slower, torque-rich output. The gearbox uses gears to reduce the power turbine speed while increasing torque, and it transfers that power forward to the transmission shaft. This arrangement enables efficient, controlled propulsion without needing to drive the transmission at turbine-speed. It does not house fuel control components, which are separate.

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