If a main propulsion shafting arrangement is such that no strut or strut bearing is required, what is an alternative name given to the propeller shaft, which is the section of shafting that the propeller is attached to?

Correct Answer: Option B — Tail shaft

The tail shaft, or propeller shaft, is the final section of the propulsion line that extends through the stern tube to support the propeller. In arrangements without intermediate struts, this shaft carries the propeller's weight and transmits the thrust directly to the main shafting.