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	<title>J24 Blog &#187; Rules</title>
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	<link>http://www.j24blog.com</link>
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		<title>Winter Work for J/24 Class</title>
		<link>http://www.j24blog.com/2010/01/09/winter-work-for-the-seattle-j24-class/</link>
		<comments>http://www.j24blog.com/2010/01/09/winter-work-for-the-seattle-j24-class/#comments</comments>
		<pubDate>Sun, 10 Jan 2010 06:15:39 +0000</pubDate>
		<dc:creator>peter</dc:creator>
				<category><![CDATA[Rules]]></category>
		<category><![CDATA[Tuning]]></category>

		<guid isPermaLink="false">http://www.j24blog.com/?p=340</guid>
		<description><![CDATA[[source: CYC Seattle] In a cavernous construction space at Kvichak Marine Industries in Seattle&#8217;s Ballard neighborhood, measurers from J/24 Fleet 26 are hard at work. It is Thanksgiving weekend, and three boats are lined up on trailers inside the big shed, where they have been packed with heaters and fans for a couple of days [...]]]></description>
			<content:encoded><![CDATA[<div id="attachment_342" class="wp-caption alignnone" style="width: 460px"><a href="http://www.j24blog.com/wp-content/uploads/2010/01/J24measuring.jpg"><img class="size-full wp-image-342 " title="J24measuring" src="http://www.j24blog.com/wp-content/uploads/2010/01/J24measuring.jpg" alt="" width="450" height="311" /></a><p class="wp-caption-text">Shown at a recent measurement session at Kvichak Marine Industries are, from left, Scott Milne, Measurer Noel Morgan, Richard Demmler, Measurer Mike Johnson and Keith Whittemore. Milne&#39;s and Demmler&#39;s boats were being measured, and Whittemore, also a J/24 owner, is a partner at Kvichak and provided the space for the boats.</p></div>
<p>[source: <a href="http://www.cycseattle.org/2009_specific/j24measuring.html">CYC Seattle</a>]</p>
<p>In a cavernous construction space at Kvichak Marine Industries in Seattle&#8217;s Ballard neighborhood, measurers from J/24 Fleet 26 are hard at work.</p>
<p>It is Thanksgiving weekend, and three boats are lined up on trailers inside the big shed, where they have been packed with heaters and fans for a couple of days to suck out the moisture before they are weighed. A fourth boat, already measured, is parked on the street.</p>
<p>Mike Johnson and Noel Morgan, armed with tape measures, templates and weighing scales, are climbing all over the boats, inspecting for measurement integrity and taking both notes and photos which they will later add to a database to track each of the about 30 active boats in the Seattle fleet. Measuring all of them will take several more weekends and countless hours of work, all in preparation for the <a title="J/24 North American Championships" href="http://www.j24northamericans.com/">J/24 North American Championships</a>, to be held on Puget Sound in May.</p>
<p>Full article <a href="http://www.cycseattle.org/2009_specific/j24measuring.html">here</a>.</p>
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		<title>Downwind Start</title>
		<link>http://www.j24blog.com/2008/07/30/downwind-start/</link>
		<comments>http://www.j24blog.com/2008/07/30/downwind-start/#comments</comments>
		<pubDate>Wed, 30 Jul 2008 17:30:42 +0000</pubDate>
		<dc:creator>peter</dc:creator>
				<category><![CDATA[Race Report]]></category>
		<category><![CDATA[Rules]]></category>
		<category><![CDATA[Starts]]></category>
		<category><![CDATA[Tuesday]]></category>
		<category><![CDATA[Uncategorized]]></category>
		<category><![CDATA[race-reports]]></category>
		<category><![CDATA[tuesdays]]></category>

		<guid isPermaLink="false">http://www.j24blog.com/?p=270</guid>
		<description><![CDATA[So Bob, our mast guy, says do you ever do downwind starts. I say I haven&#8217;t in the three years I&#8217;ve been racing.  And so after a douse where the spinnaker ended up in the lake, and I&#8217;m madly re-running the sheets, and we are going to be late to the start, I look up [...]]]></description>
			<content:encoded><![CDATA[<p>So Bob, our mast guy, says do you ever do downwind starts. I say I haven&#8217;t in the three years I&#8217;ve been racing.  And so after a douse where the spinnaker ended up in the lake, and I&#8217;m madly re-running the sheets, and we are going to be late to the start, I look up and the entire fleet has spinnaker set, charging to the line. Too funny. Sort of.</p>
<p>We were caught off guard, didn&#8217;t get the spinnaker set before we had to reach to the leeward gate under genoa. That is sort of our night. Many highs and lows, wrapped spinnakers, a torn leach cord, a crash gybe that nearly dumped the crew.</p>
<p>On the high side we were dialed into the puffs and made nice work of the beats. It makes it a bit more painful to see the spinnaker in a un-recoverable figure eight when you actually have a fighting chance in a race. But the breeze was up and mistakes get magnified. A character and experience building exercise for sure.</p>
<p>One lesson was learned on the downwind start. When we made it to the windward mark all boats were leaving it to starboard, which we have never done before. Here is the relevant section of the <a href="http://www.cycseattle.org/racebook2008/lakegsi.html">Lake Washington GSIs</a>:</p>
<blockquote><p>9.3   Start between the starting buoy and the orange flag on the race committee boat.<strong> Pass each rounding mark in the order displayed and on the same side as the starting mark</strong>. Finish between the finishing buoy and the orange flag on the race committee boat. When a number, such as &#8220;2&#8243; or &#8220;3&#8243;, follows the course letters, it signals a multiple-lap course. Sail the course as many times as is indicated by that number, crossing the finishing line at the completion of each lap.</p></blockquote>
<p>Since we started downwind with the pin to starboard, all other marks must now be left to starboard. The leeward mark was a gate so this rule didn&#8217;t change anything there. Lesson learned.</p>
<p>When we got back to the dock we did some practicing with the spinnaker pole to sort out some of the issues we are having with douses. I wish we had more time for practicing, I know it would make all of the difference. But it&#8217;s hard enough to field a crew one night a week as it is. This is really the biggest challenge for us right now.</p>
<p>All in all, it was a great night on the lake, our crew is getting deeper, and everybody lived to sail another day. </p>
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		<title>Mark Roundings &#8211; Not &#8220;Shutting the Door&#8221;</title>
		<link>http://www.j24blog.com/2007/06/09/mark-roundings-not-closing-the-door/</link>
		<comments>http://www.j24blog.com/2007/06/09/mark-roundings-not-closing-the-door/#comments</comments>
		<pubDate>Sun, 10 Jun 2007 06:54:43 +0000</pubDate>
		<dc:creator>peter</dc:creator>
				<category><![CDATA[Race Report]]></category>
		<category><![CDATA[Rules]]></category>
		<category><![CDATA[Startegy and Tactics]]></category>

		<guid isPermaLink="false">http://www.j24blog.com/?p=97</guid>
		<description><![CDATA[During the second race last Tuesday we had another incident rounding a mark where a boat called foul on us. Approaching the leeward mark we noticed that two boats rounding ahead were stalled at the mark and there was enough room to pass between them and the mark. I called for room, although I&#8217;m now [...]]]></description>
			<content:encoded><![CDATA[<p>During the second race last Tuesday we had another incident rounding a mark where a boat called foul on us. Approaching the leeward mark we noticed that two boats rounding ahead were stalled at the mark and there was enough room to pass between them and the mark. I called for room, although I&#8217;m now sure we weren&#8217;t entitled to room. It was not an attempt at deception, just a lack of real experience with the rules during mark roundings. Significantly, neither of the other boats contested or refused my request.</p>
<p>We came through the gap between the leeward mark and the two boats and drifted a bit due to the course being above close hauled. As soon as we could we tacked and completed our rounding. We neither hit the mark nor the other boats, but one of them did call a foul on us.</p>
<p>Again we had the benefit of hindsight in the form of gps tracks. In the following animation we are the blue boat and the boat that called foul on us is the green boat. I&#8217;ve left another (yellow) boat in the animation to help indicate the leeward mark location, which is an educated guess. The red circle is roughly the two boat length circle (16 meters). What this animation shows is that we were not entitled to room:</p>
<p>[kml_flashembed movie="wp-content/uploads/2007/06/rounding.swf" height="460" width="460" play="false" /]</p>
<p><span id="more-97"></span></p>
<p>In this situation rule 18.2 applies:</p>
<blockquote><p><strong>18.2 Giving Room; Keeping Clear<br />
(c) NOT OVERLAPPED AT THE ZONE</strong><br />
If a boat was clear ahead at the time she reached the two-length zone, the boat clear astern shall thereafter keep clear. If the boat clear astern becomes overlapped outside the other boat, she shall also give the inside boat room. If the boat clear astern becomes overlapped inside the other boat, she is not entitled to room. If the<br />
boat that was clear ahead passes head to wind, rule 18.2(c) no longer applies and remains inapplicable.</p></blockquote>
<p>So it&#8217;s pretty obvious that we rounded inside of the other boats but were not entitled to room. Here is what Dave Perry has to say about inside rounding when not entitled to room, taken from <a href="http://www.amazon.com/gp/redirect.html?ie=UTF8&amp;location=http%3A%2F%2Fwww.amazon.com%2FUnderstanding-Racing-Rules-Sailing-Through%2Fdp%2F0974105872%3Fie%3DUTF8%26s%3Dbooks%26qid%3D1181457779%26sr%3D8-1&amp;tag=j2bl-20&amp;linkCode=ur2&amp;camp=1789&amp;creative=9325">Understanding the Racing Rules of Sailing</a><img src="http://www.assoc-amazon.com/e/ir?t=j2bl-20&amp;l=ur2&amp;o=1" style="border: medium none #000000; margin: 0px" border="0" height="1" width="1" /> (p.174). He first poses the question and then follows with his answer:</p>
<blockquote><p>&#8220;<em>Now I understand when I can and cannot be entitled to &#8216;room,&#8217; but what if an outside boat leaves enough space between her and the mark; is it a foul to sneak in there?&#8221;</em></p>
<p>Absolutely not, as long as you don&#8217;t hit the mark or the outside boat or force the outside boat to change course to avoid hitting you. US SAILING Appeal 5 is clear: &#8220;When a boat voluntarily or unintentionally makes room available to another boat that, under the rules, has no right to that room and makes no claim to it, that other boat may take advantage, at her own risk, of the room so given. In that case, she breaks no rule.&#8221;</p></blockquote>
<p>From the other drivers comments it seems that the room was left to us voluntarily:</p>
<blockquote><p>We were inside of irrational, and they owed us room, we were about to turn into the mark and round, thus effectively shutting the door on you, but your hail and the speed you were carrying into the mark prevented me from turning, in other words, I didn&#8217;t turn in order to avoid hitting you, or having you hit me.</p>
<p>Kevin should have hailed you, &#8220;You have no rights, don&#8217;t go in there&#8221;and then I should have turned as I was planning on doing.</p>
<p>I was pretty close to the mark, and we probably would have collided had I turned.</p></blockquote>
<p>If the other driver had wanted to shut the door on us, not only was he entitled to, but he wouldn&#8217;t have had to give us room to keep clear.</p>
<blockquote><p><strong>18.2 Giving Room; Keeping Clear<br />
(d) CHANGING COURSE TO ROUND OR PASS</strong><br />
When after the starting signal rule 18 applies between two boats<br />
and the right-of-way boat is changing course to round or pass a<br />
mark, rule 16 does not apply between her and the other boat.</p></blockquote>
<p>Rule 16 states:</p>
<blockquote><p><strong>16 CHANGING COURSE<br />
16.1</strong> When a right-of-way boat changes course, she shall give the other boat room to keep clear.</p></blockquote>
<p>According to Dave Dellenbaugh in <a href="http://www.speedandsmarts.com/" title="Speed and Smarts Home Page">Speed and Smarts</a> (No. 92, p.16), rule 18.2(d) is the only exception to rule 16 (Changing Course):</p>
<blockquote><p><strong>Shutting the door </strong><br />
Two boats on port tack approach a leeward mark. When Boat A enters the two-length zone, she is clear ahead of Boat B, so B must keep clear during the rounding. However, if A swings wide, B may try to sneak between A and the mark. A&#8217;s typical response is to  turn sharply to &#8216;close the door.&#8217; But if rule 16 applied, A would be very limited in her ability to do this. Rule 18.2d makes it clear that A is not limited in this way.</p></blockquote>
<p>So in this leeward mark rounding, the outside boat had rights to steer any course she desired, and we needed to keep clear. She didn&#8217;t even need to give us room to keep clear. The burden was on us to get out of the way. Under rule 14, the other boat needed to avoid contact with us, but only to a point:</p>
<blockquote><p><strong>14 AVOIDING CONTACT</strong><br />
A boat shall avoid contact with another boat if reasonably possible. However, a right-of-way boat or one entitled to room<br />
<strong>(a)</strong> need not act to avoid contact until it is clear that the other boat is not keeping clear or giving room, and<br />
<strong>(b)</strong> shall not be penalized under this rule unless there is contact that causes damage or injury.</p></blockquote>
<p>Under rule 14(b), the other boat would not have been penalized unless there was damage or injury. A question remains. Can there have been a foul if there was no contact? This should be obvious but I wanted to track down the rule that applied specifically to this question.  The answer is yes, of course. The burdened boat is required to &#8220;keep clear&#8221;, which is distinct from &#8220;avoid contact.&#8221; <a href="http://www.sailing.org/newrules/casebook/2case88.asp" title="ISAF Case 88">ISAF case 88</a> states that &#8220;A boat may avoid contact and yet fail to keep clear.&#8221; Case 88 involves a rule 10 protest but applies in this case as well:</p>
<blockquote><p>Rule 10 required P to &#8216;keep clear&#8217; of S. &#8216;Keep clear&#8217; means something more than &#8216;avoid contact&#8217;; otherwise the rule would contain those or similar words. Therefore, the fact that the boats did not collide does not necessarily establish that P kept clear.</p></blockquote>
<p>So there you have it. A collision and subsequent protest were avoided due to the good graces of the other boat. If the stakes had been higher we most certainly would have been protested, and in the end we had no right to stick our nose in there. We can chalk it up to a learning experience, motivation to hit the books and study up on rule 18, and in the end, another installment of &#8220;time on the water.&#8221;</p>
<blockquote></blockquote>
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		<title>The Importance of Starting Sequence Flags</title>
		<link>http://www.j24blog.com/2007/05/18/starting-sequence/</link>
		<comments>http://www.j24blog.com/2007/05/18/starting-sequence/#comments</comments>
		<pubDate>Sat, 19 May 2007 06:49:58 +0000</pubDate>
		<dc:creator>peter</dc:creator>
				<category><![CDATA[Boathandling]]></category>
		<category><![CDATA[Rules]]></category>
		<category><![CDATA[Starts]]></category>

		<guid isPermaLink="false">http://www.j24blog.com/?p=59</guid>
		<description><![CDATA[Last Tuesday we had some confusion at the start. We miss judged the horn and timed our start about a minute too early. We later realized that when the postponement flag which had been flying was taken down a signal was fired off, and it was this that we took for the 5 minute warning [...]]]></description>
			<content:encoded><![CDATA[<p>Last Tuesday we had some confusion at the start. We miss judged the horn and timed our start about a minute too early. We later realized that when the postponement flag which had been flying was taken down a signal was fired off, and it was this that we took for the 5 minute warning signal. One issue was not knowing the start flag sequence well enough.</p>
<p>The starting flag sequence is given in <a href="http://www.cycseattle.org/racebook2007/lakegsi.html" title="Lake Washington Racing Program General Sailing Instructions">Lake Washington Racing Program General Sailing Instructions</a>:</p>
<blockquote><p>10. THE START</p>
<p>Races will be started by using RRS rule 26 <strong>except a blue shape will replace flag P</strong>. [Note for web version of racebook: This link to RRS rule 26 is to the 2001 rules. Rule 26 is unchanged in the 2005 rules, but US Sailing does not have the 2005 rules available individually.] The race committee may give a hail to the next class whose warning signal is about to be made.</p></blockquote>
<p>Which refers to the RRS:</p>
<blockquote><p>26 <a href="http://sailing.org/rrs2001/part3.html#26" title="Sailing.org Starting Races">STARTING RACES</a></p>
<p>Races shall be started by using the following signals. Times shall be taken from the visual signals; the absence of a sound signal shall be disregarded.</p></blockquote>
<p></p>
<h2>Start Flags</h2>
<table class="wptable rowstyle-alt" id="wptable-4"  cellspacing="1">
	<thead>
	<tr>
		<th class="sortable" style="width:30px" align="left">Signal</th>
		<th class="sortable" style="width:px" align="left">Flag and Sound.</th>
		<th class="sortable" style="width:30px" align="left">Minutes</th>
	</tr>
	</thead>
	<tr>
		<td style="width:30px" align="left">Warning</td>
		<td style="width:px" align="left">Class flag; 1 sound</td>
		<td style="width:30px" align="left">5</td>
	</tr>
	<tr class="alt">
		<td style="width:30px" align="left">Preperatory</td>
		<td style="width:px" align="left">P, I, Z, Z with I, or black flag; 1 sound</td>
		<td style="width:30px" align="left">4</td>
	</tr>
	<tr>
		<td style="width:30px" align="left">One-minute</td>
		<td style="width:px" align="left">Preparatory flag removed; 1 long sound</td>
		<td style="width:30px" align="left">1</td>
	</tr>
	<tr class="alt">
		<td style="width:30px" align="left">Starting</td>
		<td style="width:px" align="left">Class flag removed; 1 sound</td>
		<td style="width:30px" align="left">0</td>
	</tr>
</table><p>
</p>
<p>So this is what the sequence should normally look like (with a &#8220;blue shape&#8221; replacing the P flag):</p>
<p>At 5 minutes:</p>
<p><a href="http://www.j24blog.com/wp-content/uploads/2007/05/j24class.gif" title="Flag J24 Class"><img src="http://www.j24blog.com/wp-content/uploads/2007/05/j24class.gif" alt="Flag J24 Class" /></a></p>
<p>At 4 minutes:</p>
<p><a href="http://www.j24blog.com/wp-content/uploads/2007/05/j24class.gif" title="Flag J24 Class"><img src="http://www.j24blog.com/wp-content/uploads/2007/05/j24class.gif" alt="Flag J24 Class" /></a><a href="http://www.j24blog.com/wp-content/uploads/2007/05/p-flag1.gif" title="Flag P"><img src="http://www.j24blog.com/wp-content/uploads/2007/05/p-flag1.gif" alt="Flag P" /></a></p>
<p>At 1 minute:</p>
<p><a href="http://www.j24blog.com/wp-content/uploads/2007/05/j24class.gif" title="Flag J24 Class"><img src="http://www.j24blog.com/wp-content/uploads/2007/05/j24class.gif" alt="Flag J24 Class" /></a></p>
<p>Recognizing these flags will give a more consistent pre-start countdown.</p>
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		<title>Rules 101</title>
		<link>http://www.j24blog.com/2007/05/14/rules-101/</link>
		<comments>http://www.j24blog.com/2007/05/14/rules-101/#comments</comments>
		<pubDate>Mon, 14 May 2007 21:25:32 +0000</pubDate>
		<dc:creator>peter</dc:creator>
				<category><![CDATA[Rules]]></category>
		<category><![CDATA[Video]]></category>

		<guid isPermaLink="false">http://www.j24.pnwlink.com/?p=43</guid>
		<description><![CDATA[Who&#8217;s fault is it? [youtube]http://www.youtube.com/watch?v=b10dCyIPTZw[/youtube]]]></description>
			<content:encoded><![CDATA[<p>Who&#8217;s fault is it?</p>
<p>[youtube]http://www.youtube.com/watch?v=b10dCyIPTZw[/youtube]</p>
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