Figure 1:
Overlap established from clear astern - X does not acquire luffing rights.
A completes her tack at position 3, when she is clear ahead of X. Shortly
thereafter X establishes an overlap from clear astern and will break rule
17 if she sails above her proper course during this overlap, and while
the boats remain within two lengths of each other, unless in doing so
she promptly sails astern of A. |
Figure 2:
Overlap established from clear astern - X acquires luffing rights. The
moment A passes head to wind in position 2 the boats are on the same tack,
but not overlapped. The overlap is established before A reaches a close-hauled
course - i.e. while A is subject to rule 13 Therefore rule 17 does not
apply and X may sail above her proper course. |
Figure 3:
Overlap established 'instantaneously'. At position 2, when X passes through
head to wind, both boats are on the same tack and overlapped. As neither
boat established this overlap from clear astern, the overlap is said to
be 'instantaneous'. Rule 17 does not apply and X may sail above her proper
course. |