Appendix B
WINDSURFING COMPETITION RULES
17
ON THE SAME TACK; PROPER COURSE Rule 17 is deleted.
18
MARK-ROOM Rule 18 is changed as follows: The first sentence of rule 18.1 is changed to: Rule 18 begins to apply between boards when they are required to leave a mark on the same side and at least one of them is about to round or pass it. The rule no longer applies after the board entitled to mark-room has passed the mark. Rule 18.2(b) is changed to: (b) If boards are overlapped when the first of them is about to round or pass the mark, the outside board at that moment shall thereafter give the inside board markroom. If a board is clear ahead when she is about to round or pass the mark, the board clear astern at that moment shall thereafter give her mark-room.
Rule 18.2(c) is changed to: (c) When a board is required to give mark-room by rule 18.2(b), she shall continue to do so even if later an overlap is broken or a new overlap begins. However, if the board entitled to mark-room passes head to wind, rule 18.2(b) ceases to apply.
18.3 Tacking in the Zone Rule 18.3 is deleted. 18.4 Gybing or Bearing Away Rule 18.4 is changed to: When an inside overlapped right-of-way board must gybe or bear away at a mark to sail her proper course, until she gybes or bears away she shall sail no farther from the mark than needed to sail that course. Rule 18.4 does not apply at a gate mark.
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