The distance a vessel moves at right angles to the original course, when a turn of 180° has been completed, is called the __________.
Official USCG Answer & Rule Citation
Correct Answer: Option A — tactical diameter
Tactical diameter is the perpendicular distance between the original course line and the course line after completing a 180-degree turn. It is a critical turning characteristic defined in ship maneuvering data trials.
100% Free & Open Access — No daily limits, paywalls, or gated answers on BrightMariner.