You have determined the maneuvering characteristics of your vessel by taking radar ranges and bearings of an isolated light while making a turn. The results are as shown. Based on this data what is the advance for a turn of 90°? See Illustration D035DG

Correct Answer: Option B — 790 yards

Analyzing radar plot data from illustration D035DG for a 90-degree turn requires measuring the perpendicular distance traveled along the original course line from initial rudder execution, which calculates to 790 yards of advance.