You have determined the maneuvering characteristics of your vessel by taking the radar ranges and bearings of an isolated light while making a turn. The results are listed in illustration D035DG. Based on this data what is the tactical diameter of the turning circle?

Correct Answer: Option D — 880 yards

Tactical diameter is defined as the distance gained to the right or left of the original course when the vessel has turned 180 degrees. Analyzing the provided radar plot in illustration D035DG, the maximum perpendicular distance from the original track line to the 180-degree turn point measures 880 yards.