Question 4171 Deck General

The correct answer is A) tactical diameter. The tactical diameter is the distance a vessel moves at right angles to the original course, when a turn of 180 degrees has been completed. This is a key concept in ship maneuvering and is an important part of the knowledge required for obtaining a U.S. Coast Guard Captain's License. The other options are incorrect because: B) pivoting point refers to the point around which a vessel turns, C) advance refers to the distance traveled along the original course during a turn, and D) kick refers to the sideways movement of a vessel during a turn, but not specifically the distance moved at right angles after a 180 degree turn.