Wednesday, November 25, 2009

2010 Rule Changes

As you might have seen previously during our discussions on the new rules there were a few cases where the new rules didn't work.  You might recall Rules 18 Scenario 4   It didn't make sense that a boat not entitled to mark room could pass head to wind at the leeward mark and turn off Rule 18.2(b).  ISAF agreed and this rule was modified.  I don't recall this happening in any of our races, but I'm glad they are changing it for next year. See the new wording below.

Rule 18.2(c):

(c) When a boat is required to give mark-room by rule 18.2(b), she shall continue to do so even if later an overlap is broken or a new overlap begins. However, if either boat passes head to wind or if the boat entitled to mark-room passes head to wind or leaves the zone, rule 18.2(b) ceases to apply.
Rule 18.2(c) will be changed to prohibit a newly discovered and potentially dangerous tactic that was an unintended consequence of the current wording of this rule. The revised rule will no longer permit a boat to tack just before she reaches a mark and, as a result of her tack, become entitled to mark-room from boats that had been clear ahead of her when they reached the zone. A parallel change in rule B3.1(c) outlaws a similar tactic in a sailboard race.

Another issue we saw with our review of the rules was that there were problems with both Rule 18 and 19 turned on at a mark.  There seemed to be too many confusing circumstances that occurred.  ISAF decided to take care of this by changing the definition of obstruction.  I'm not completely sure this solves the problem and I'm a bit concerned there might be unintended consequences with changing this definition.  You will recall the post in September Possible Change in Rules for 2010  that presented this proposed change.  We will see how this works out as it takes effect next year..

 Definition Obstruction:

Obstruction An object that a boat could not pass without changing course substantially, if she were sailing directly towards it and one of her hull lengths from it. An object that can be safely passed on only one side and an area so designated by the sailing instructions are also obstructions. However, a boat racing is not an obstruction to other boats unless they are required to keep clear of her, give her room or mark-room or, if rule 22 applies, avoid her. A vessel under way, including a boat racing, is never a continuing obstruction.
The definition "Obstruction" will be changed so that a boat racing will no longer be an obstruction to other boats that are required to give her room or mark-room. This change will simplify the analysis of some situations near a mark in which both rules 18 and 19 apply, and it will not otherwise change the ‘game’.

 Here are a few other rules that are changing in 2010, but they will not effect our racing as far as I can tell:

Definition Party:

Party A party to a hearing: a protestor; a protestee; a boat requesting redress or for which redress is requested by the race committee or considered by the protest committee under rule 60.3(b); a race committee acting under rule 60.2(b); a boat or competitor that may be penalized under rule 69.1; a race committee or an organizing authority in a hearing under rule 62.1(a).
Additions will be made to the definition Party to correct unintended omissions. The revised definition will mean that, whenever redress is requested for a boat by the race committee or considered for a boat by the protest committee, that boat will be a party to the resulting hearing. Also, a race committee that requests redress for a boat will also become a party when its request is heard.

Appendix B, Rule B3.1(c):

Rule 18.2(c) is changed to:
When a board is required to give mark-room by rule 18.2(b), she shall continue to do so even if later an overlap is broken or a new overlap begins. However, if either board the board entitled to mark-room passes head to wind, rule 18.2(b) ceases to apply.

Appendix C, Rule C2.12 (a new rule):

C2.12 Rule 18.2(e) is changed to ‘If a boat obtained an inside overlap and from the time the overlap began, the outside boat has been unable to give mark-room, she is not required to give it.’

The more things change the more they stay the same.

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