Gybing at the Mark
An inside overlapped boat that must gybe at the mark may sail no farther from it than needed — no swinging wide to set up the gybe.
When an inside overlapped right-of-way boat must gybe to sail her proper course at a mark, rule 18.4 says that until she gybes she shall sail no farther from the mark than needed to sail that course. So she can't swing out wide to set up a smooth gybe and push the outside boat around — she stays tight to her proper-course track and gybes at the mark. (Rule 18.4 does not apply at a gate mark.)
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How it interacts with other rules
- Rule 18 — Mark-Room · see also
The base mark-room rule the inside boat is using.
Related guide
- What is mark-room? Rule 18 explained simply
Mark-room is the room an inside boat is owed to sail to and round a mark under rule 18. Learn the zone, who owes it, and the common reversals.