Proper Course

No, actually. The direction of the next mark would only be important if rule 17.1 was an issue. In the Tss the infringement occurs when Blue (RoW, leeward) luffs without giving Yellow room to keep clear. Rule 16.1

Gordon

Originally posted by gordon Judging from TSS (wish I could figure how to stop it moving), which I will take as the "facts found" Gordon

Gordon:
Here's a static picture of the TSS-diagram.

Originally posted by Stefan Lloyd Originally posted by gordon at 5 The mark rounding is complete. Rule 18 no longer applies. Blue  establishes an overlap from clear astern, partly, at least, because Yellow bears away to hoist her kite. Rule 15 does not apply. However Blue alters course, and, as right of way boat, is required to give room for Yellow to keep clear (rule 16.1). Contact is almost immediate. If Blue had not changed course, Yellow would have had an opportunity to keep clear. In the verbal description at the top of this thread, my reading is that Blue does not alter course. The animation does seem to show Blue luffing following the rounding but I'm uncertain if that is accurate. Why would Blue want to luff at this point?

The TSS diagram is a representation of how I thought the facts were. However the only one who can accuratly draw this is Redback
I don't know where the next mark was situated, I don't know if Blue luffed.....or not

Judging from TSS (wish I could figure how to stop it moving), which I will take as the "facts found"

at 1 Blue is clear astern. Rule 18.2c applies and Blue must keep clear.

at 4 : Blue has yet to finsh rounding the mark. 18.2c still applies and Blue must keep clear. At this point Blue is still clear astern

at 5 The mark rounding is complete. Rule 18 no longer applies. Blue  establishes an overlap from clear astern, partly, at least, because Yellow bears away to hoist her kite. Rule 15 does not apply. However Blue alters course, and, as right of way boat, is required to give room for Yellow to keep clear (rule 16.1). Contact is almost immediate. If Blue had not changed course, Yellow would have had an opportunity to keep clear.

Blue has infringed rule 16.1 and should take a penalty.

It would be interesting to know if the boats courses at 6 are in fact their proper course. If this is so then Blue would also have infringed rule 17.1 by sailing above her proper course at 5

Many competitors, especially in match racing, feel that rule 16.1 gives the keep clear boat an advantage as she effetively prevents the right of way boat from changing course. But that is the way the rules are written

Gordon

Originally posted by iansmithofotley ................   It does not state whether or not the boats were clear ahead/astern on approaching the two length zone of the mark.  It does not state whether or not the boats were within the two length zone of each other, or, if they were, at what stage in relation to the mark (before, alongside or past the mark). It does not state where the boats were in relation to the mark when the leading boat started to hoist a kite (before, alongside or after the mark).  It does not state whether or not both boats had completely rounded the mark and were then on the downwind leg.  My point is that unless these facts are known then it is difficult to assess which rules apply and when.

Perhaps a picture-diagram of the situation would help?



Edited by Spyderman