Case #68 answer
..

----- Original Message -----

From: Al Schonborn

To: Ian Farquharson

Sent: Saturday, July 05, 2003 10:24 AM

Subject: two questions about buoy room

 

Hi, Ian:

 

Glad you're finding the site useful. Will give you my best answer in red below.

 

Best regards,

 

Uncle Al (W3854)

 1) at a windward mark boat 'a' (me) is ahead to windward at the zone. Boat 'b' is overlapped inside. Boat 'a' however is close-hauled making the mark and boat 'b' (inside but a bit behind) has to pinch above close-hauled to make it around the mark. Does boat 'a' have to give boat 'b' "mark-room" even if it means going above close hauled to do so?  I thought I had to give them room otherwise they would hit the mark. one of my crew thinks they cannot take us above close-hauled.

It depends on how Boat B got there: If Boat B has not just completed a tack to leeward of you and in the zone, Boat B is entitled to mark-room and boat A must give that room, even if that means having to go above close-hauled, i.e. A has to give mark-room any (seamanlike!) way she can.
What your crew may be thinking of is the situation where B completes a tack inside the zone. In that case, rule 18.3 applies - more specifically 18.3(a) which is what your crew may well be thinking of:


18.3 Tacking in the Zone
If a boat in the zone passes head to wind and is then on the same tack as a boat that is fetching the mark, rule 18.2 does not thereafter apply between them.
The boat that changed tack
(a) shall not cause the other boat to sail above close-hauled to avoid her or prevent the other boat from passing the mark on the required side, and
(b) shall give mark-room if the other boat becomes overlapped inside her.  

 
In that case, B would be fouling you if you had to go above close-hauled.

 

2) at a reach mark boat 'a' (me) approaches on starboard in a dying breeze and gybes for the mark around 2 - 3 boat lengths away. By the time she is about 1 boat length or less from it (moving very slowly in the dying breeze) other boats now come in on starboard tack with good pressure in fresh breeze and claiming "room" and overlap (from miles away). Should they get it?

The Overlap definition states: 
Clear Astern and Clear Ahead; Overlap  One boat is clear astern of another when her hull and equipment in normal position are behind a line abeam from the aftermost point of the other boat's hull and equipment in normal position. The other boat is clear ahead. They overlap when neither is clear astern. However, they also overlap when a boat between them overlaps both. These terms always apply to boats on the same tack. They do not apply to boats on opposite tacks unless rule 18 applies or both boats are sailing more than ninety degrees from the true wind.


You'll notice that there is no distance limitation on this. Strategically, what this means is that you want to make every effort to be in the Zone before bearing away and giving everyone and his brother an overlap, especially if you will be very slow after the gybe (very light winds, going up-current).

 

On the second issue, I gave them room although I wasn't sure they were entitled because they had been so far away when I gybed.

Smart move. Better to err on the side of being more sportsmanlike than the minimum when you're not sure.

 

Afterwards in the bar, someone explained that in that situation the overlap is sighted from their transom to ours and even though the boats are physically a long way apart and on different tacks that that is how the overlap gets judged.  It must be difficult to prove either way in the protest room.  Any thoughts?

Actually, the overlap is sighted from the boat further ahead, i.e. at right angles to your transom in this case. When you make a right angle gybe near the mark, pretty well everyone on the previous leg now has an overlap on you, which usually doesn't matter since very few can get there in time to claim room. But this shows you why it can be crucial not to begin your turn until you have reached the sanctuary of the Zone, when it is too late for anyone to claim room from establishing an overlap at that point.

 

Thanks in advance for any help you can give.

Hey, these things are really fun. Glad to be able to help. Keeps my Rules knowledge reasonably sharp. BTW, where do you sail? I sail out of Oakville, just west of Toronto, and we're just off to sail our annual Around Toronto Island Race out of TS&CC. May be our last one since a bridge across the Western Gap to the Island Airport has been approved by the money-hungry!

Uncle Al (Wayfarer 3854)

....
Case 70
return to Quiz Index
...
If you have any Rules questions or scenarios that you'd like me to clarify,
I'd love to hear them and add them to this quiz!
Just contact Uncle Al at uncle-al3854@cogeco.ca