Concerning main propulsion reduction gears, what statement is true?
The reduction gear allows the prime mover to rotate efficiently at relatively high speed and low torque and allows the propeller to rotate efficiently at relatively low speed and high torque.
The reduction gear allows the prime mover to rotate efficiently at relatively high speed and high torque and allows the propeller to rotate efficiently at relatively low speed and low torque.
The reduction gear allows the prime mover to rotate efficiently at relatively low speed and low torque and allows the propeller to rotate efficiently at relatively high speed and high torque.
The reduction gear allows the prime mover to rotate efficiently at relatively low speed and high torque and allows the propeller to rotate efficiently at relatively high speed and low torque.
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