Because of that (sound) advice - long ago, LTW will start a new series:
"The (pillow)Case of the Week"
I'll go through the ISAF Casebook 2009-2012 (including changes effective 1 January 2010) starting not at the beginning but at the end and work my way forward. I'll try to publish on Monday or Tuesday, so you'll have a whole week to keep it under you pillow and read it before the Sandman comes.
CASE 113
Rule 20.1, Room to Tack at an Obstruction: Hailing and RespondingWhen a boat hails under rule 20.1 for room to tack, all boats that hear her hail and that will have to respond to give her that room must do so.
Assumed Facts
L, M and W are sailing close-hauled on starboard tack. They are approaching an obstruction and safety requires them to make a substantial course change to avoid it. The obstruction is not a mark. When the boats are in the positions shown in the diagram, L hails ‘Room to tack’ loudly
enough to be heard by both M and W. When L hails, it is clear that M and W must both tack in order to give room to L, and M does not have room to tack and avoid W.
Question 1
Does rule 20.1 require W to respond to L’s hail?
Answer 1
Yes. When a boat that is not adjacent to the hailing boat has heard the hail, and will have to respond before the hailing boat is able to tack, she is a ‘hailed boat’ in the context of rule 20.1 and she shall respond accordingly.
Question 2
Is M required to hail W for room to tack immediately after she hears L’s hail?
Answer 2
Yes, if W is not already responding to L’s hail. Because replying ‘You tack’ is not an option for M in this case, M is required by rule 20.1(b) to respond to L's hail by tacking as soon as possible. Therefore, if M cannot tack because of the presence of W, she must immediately hail W for room
to tack. If she fails to do this, and as a result is unable to tack as soon as possible, she breaks rule 20.1(b).
(ISAF 2009)
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