Team Race - CALL G 06  

Rule 11 On the Same Tack, Overlapped
Rule 17.1 On the Same Tack; Proper Course, Leeward Boat
Rule 18.1 Rounding and Passing Marks and Obstructions: When this Rule Applies
Rule 18.2(a) Rounding and Passing Marks and Obstructions: Giving Room; Keeping Clear. Overlapped – Basic Rule

Question
A and X are overlapped on port tack on a downwind leg. X is subject to rule 17.1. Both boats are on collision course with B on starboard tack. A hails for room to gybe but X luffs to pass astern of B, which is a proper course for X. A keeps clear and protests. What should the call be?

Answer
Rule 18 only applies when boats are about to round an obstruction on the same side. Until such time, A must keep clear of X, and X must not sail above her proper course. A keeps clear of X and gives her room while she does so. No penalty.
If X chooses to gybe to keep clear of B, she must give A room to pass on the same side of B as she passes.