A vessel is equipped with twin propellers, both turning outboard with the engines half ahead. If there is no wind or current and the rudders are amidships, what will happen?

Correct Answer: Option A — The vessel will steer a fairly straight course.

Outboard-turning twin propellers create symmetrical lateral thrust and wake effects when operating at equal ahead speeds with rudders amidships, balancing side forces and allowing the vessel to maintain a straight course without external environmental interference.