A ship is equipped with the illustrated turbine gear set and a right hand turning propeller. When steam is admitted to the astern element, with sternway on, the high-speed gear on the high pressure side is__________. Illustration SE-0016

Correct Answer: Option D — rotating the same direction as the low-speed pinion on the low pressure side.

Kinematic analysis of reversing gear trains (SE-0016) shows that during astern operation with sternway, internal gear reversals dictate that the high-speed gear on the high-pressure side rotates identically to the low-speed pinion on the low-pressure side.