May 31, 20241 yr I’m looking for clarification for my own education. Unfortunately, I cannot find all the supporting images. Therefore, I will do my best to describe. As per the picture, blue boat is overlapping yellow inside 4 boat lengths to the mark. They round the mark together, but yellow boat finishes by being to windward of blue boat, who is clear ahead of yellow at the start of the beat. (Understand the image is not accurate, but the boat positioning is relevant). Whilst still inside the 4 boat length zone from the leeward mark, the blue boat tacks onto port. The tack is complete with blue boat underway, but a collision with yellow happens still inside the 4 boat zone to the leeward mark. Who is in the wrong and what rule supports this scenario. Regards JT Edited May 31, 20241 yr by John Taylor
May 31, 20241 yr Blues knackered. Simple P and S, overlap finished once you leave buoy. Edited May 31, 20241 yr by Graham Elliott A
May 31, 20241 yr Perhaps this diagram better shows the incident. Blue's mark room ended once she no longer needed it (about P4). Remember that mark room is about being given room to sail to the mark, not away from it. As Graham says, Blue breaks R 13 by not staying clear while tacking or once the tack is complete, as ROW changes, breaks R15 once on stbd, if Yellow is unable to stay clear.. John Edited June 1, 20241 yr by John Ball added comment and rule change
May 31, 20241 yr Author Graham and John Thanks for your comments, this will serve as education to our members when club sailing. Regards JT
May 31, 20241 yr Hi John, I would explain it this way. The zone exists to show where mark room begins and to establish which boat gets mark room. Mark room is about room to sail TO the mark (not away from it). A boat with mark room gains special privileges - while she is sailing within what mark room allows, she is exonerated if she breaks various rules (see R 43), Mark Room ends once it no longer applies. Once mark room no longer applies, the mark and the zone no longer have significance, and the rules apply just the same as in open water. John
June 1, 20241 yr Author John I always try and find the appropriate images to support the question. A picture saves many words but I did struggle this time. Anyway thanks for your expertise because this will serve as an education piece for our club members. Regards JT
October 17, 20241 yr As of 1st January, the new rule book comes into force. The definition of mark-room has been tweaked: Mark -Room Room for a boat (a) to sail to the mark when her proper course is to sail close to it, (b) to round or pass the mark on the required side, and (c) to leave it astern. The paragraph on room to tack has been deleted. A subtle point: mark-room includes a),b) and c). However, they do not necessarily apply in chronological order. In some conditions, particularly when sailing in current, a boat may have left the mark astern but is still rounding or passing it.
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