PART 2 Rule 19 ROOM TO PASS AN OBSTRUCTION


The differences between rules 18 and 19 can be summarised as follows: Rule 18, MARK-ROOM


Applies when the mark is an obstruction, unless it is a continuing obstruction


The mark must be required to be passed on the boats’ same sides


It is mark-room, as defined, that must be given


Does not apply between opposite-tack boats at a windward mark


The rule starts to apply at zone entry, three of the nearer boat’s hull lengths from the mark


The rule deals with clear-ahead and overlapped situations


There may be exoneration for a mark-room-entitled boat that breaks a rule of Section A, rule 15 or rule 16


Marks have a fixed location (except for a boat displaying flag M)


Marks are identified in the sailing instructions


RULE 19, ROOM TO PASS AN OBSTRUCTION


Does not apply when an obstruction is also a mark, unless it is continuing obstruction


There is no required side, and the obstruction can be passed on either side when it is possible to do so, as the right-of-way boat chooses, except if the obstruction is a continuing obstruction that is also a mark


It is room, as defined, that must be given


Does not apply between opposite-tack boats unless both are sailing more than ninety degrees from the wind


There is no zone. The rule applies at the obstruction


Rights at the mark are often determined at zone entry Rights at the obstruction are not finally decided until the obstruction is being passed


The rule deals only with overlapped situations at ‘ordinary’ obstructions, and only with clear-ahead situations at continuing obstructions


There may be exoneration for a room-entitled boat that breaks a rule of Section A, rule 15 or rule 16


A boat racing or a vessel under way may be an obstruction


Obstructions are self-evident, except in the case of an area defined in the sailing instructions as an obstruction


RYA The Racing Rules Explained 87


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