Answer to Dave Perry’s 100 best Rules Quizzes
Boats S (on Starboard tack) and P (on Port tack), both close hauled, are converging on a beat. P will safely cross S. However, when they are less than two lengths apart, the wind veers (shifts to the right) ten degrees. S luffs (changes her course) in response to the windshift, such that P is unable to keep Clear. There is minor contact with no damage or injury, and both boats protest. You are on the Protest Committee; how would you decide this?
Boat S is penalized under rule 16.1, Changing Course. Rule 16.1 states, "When a right-of-way boat changes course, she shall give the other boat room to keep clear." S changes course when so close to P that P is unable to keep clear and there is contact. Therefore, S failed to give P room to keep clear, thereby breaking rule 16.1. S also broke rule 14, Avoiding Contact; but as the right-of-way boat, she can only be penalized under rule 14 if the contact results in damage or injury [see rule 14(b)]. P did not break rule 14, because S changed course so close to P that is was not possible for P to avoid the contact.