Oppostie Gybes, leeward Mark

Originally posted by JimC Well, no doubts under 18.2 that green is entitled to Mark room... So we go to the definition... Mark-Room Room for a boat to sail to the mark, and then room to sail her proper course while at the mark. However, mark-room does not include room to tack unless the boat is overlapped to windward and on the inside of the boat required to give mark-room. All the way through green is entitled to mark room by that definition. Whilst green was clear ahead she was right of way boat: R12 I reckon when green gybed onto port an overlap was created, and she ceased to become right of way boat and was required to keep clear of red (R16) but red wasn't required to give green room, (R15) since it was green's actions that gave red ROW. So once the boats were on opposite gybes red was ROW, and thus green was only entitled to room to sail to the mark. She's not yet at the mark - indeed sailing away from it - so I reckon proper course doesn't apply. Thus until red gybes I think green is sailing higher than entitled to. Once red gybes green becomes ROW again. What it would come down to, I suspect was whether the PC found that red could have given green mark room without gybing if green hadn't sailed so high when they were not ROW, but I'm no rules guru.

This is almost the situation I meant: But if green was on STB and red was on port, green overlapped b4 the 3 zone, then can green "sail" by filling her Assymetric and not drifting to the mark in  light winds?

Ie sail the kind of angles in the diagram, just initially ongreen boat STB-Port red ?

In the diagram:

- initially Green was clear ahead and Red was required to keep clear. Green could sail any course (subject to the limitations of rule 16)
- when Green gybes on to port the becomes the keep clear boat, but is entitled to mark room.
- Green does not sail directly to the mark and if Red was obliged to take action to avoid Green then Green broke rule 10 and should take a penalty.
- when Green gybes back, if she is still clear ahead Red must keep clear; If Green is overlapped to windward she is entitled to mark room to sail to the mark.

Gordon

( my point being that the definition of mark room includes the bit about no farther: this means going no further PAST the mark than you need to. If gybing, once AT the mark you can't sail further, and of course you can't leave the three boat zone to gybe.)

here is my escape plan Jim C: probably happens at many RS400 or 200 events.

You come in towards the zone on a assy' gybe angle typical for light winds on STB

You pin out port boats at the zone and then continue on rule 10 with rule 18.1 also in hand, until you gybe BEFORE you are AT the mark or out the zone: you are allowed to gybe under 18.4 which resticts you to doing this in good time, not in angle of attach.

The difference being now that 3 boat legnths is a bigger area to manoevre in than 2, giving you 1.5 boat lengths of radius each side of the mark, and a maximum cord of say 2 boat legnths.

Thinking about it being so tight and r18.4 I don't see that you have to fall off before you gybe

Originally posted by damp_freddie here is my escape plan Jim C: probably happens at many RS400 or 200 events.You come in towards the zone on a assy' gybe angle typical for light winds on STBYou pin out port boats at the zone and then continue on rule 10 with rule 18.1 also in hand, until you gybe BEFORE you are AT the mark or out the zone: you are allowed to gybe under 18.4 which resticts you to doing this in good time, not in angle of attach.The difference being now that 3 boat legnths is a bigger area to manoevre in than 2, giving you 1.5 boat lengths of radius each side of the mark, and a maximum cord of say 2 boat legnths.Thinking about it being so tight and r18.4 I don't see that you have to fall off before you gybe

I think you might have miss read your rule book, its not
3 boat length diameter its a 3 boat length radius from
the mark.... meaning a 6 boat length diameter.