18. 3

Описание: Hi, 18.2b I think. Other question If the port tack boat on port Layline enters zone 1st are they entitled to buoy room?
18MARK-ROOM
18.1When Rule 18 Applies
(a) Rule 18 applies between boats when they are required to leave a mark on the same side and at least one of them is in the zone. However, it does not apply
(1) between boats on opposite tacks on a beat to windward,
(2) between boats on opposite tacks when the proper course at the mark for one but not both of them is to tack.
(3) between a boat approaching a mark and one leaving it, or
(4) if the mark is a continuing obstruction, in which case rule 19 applies.
(b) Rule 18 no longer applies between boats when mark-room has been given.
18.2Giving Mark-Room
(a) When the first of two boats reaches the zone,
(1) if the boats are overlapped, the outside boat at that moment shall give the inside boat mark-room
(2) if the boats are not overlapped, the boat that has not reached the zone at that moment shall give the other boat mark-room
When a boat is required to give mark-room by this rule, she shall continue to do so for as long as this rule applies, even if later an overlap is broken or a new overlap begins.
(b) Rules 18.2(a) no longer applies if the boat entitled to mark-room passes head to wind or leaves the zone.
(c) When rule 18.2(a) does not apply and the boats are overlapped, the outside boat shall give the inside boat mark-room
(d) If a boat obtained an inside overlap from clear astern or by tacking to windward of the other boat and, from the time the overlap began, the outside boat has been unable to give mark-room,rules 18.2(a) and 18.2(c) do not apply between them.
(e) If there is a reasonable doubt that a boat obtained or broke an overlap in time, it shall be presumed that she did not.

18.3Tacking in the Zone
If a boat passes head to wind from port to starboard tack in the zone of a mark to be left to port, rule 18.2 does not apply between her and another boat on starboard tack that is fetching the mark. If the other boat has been on starboard tack since entering the zone, the boat that passed head to wind
(a) shall not cause the other boat to sail above close-hauled to avoid contact, and
(b) shall give mark-room if the other boat becomes overlapped inside her.