Ok, Henk and Alan, DDW Test

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Rick D

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Jun 14, 2008
7,186
Hunter Legend 40.5 Shoreline Marina Long Beach CA
OK, guys: I am doing the Newport to Ensenada race this year. Never did it before since its our anniversary, but I got an excused absence this year. Anyhow, I am in non-spinnaker A (cruising class)rating 133. My experience on the 40.5 is that I have a tough rating to sail to. Regardless, this thing is almost all DDW on the rumb line of 125 nm. I will pole out my 133 genny and put the main on a preventer, but I'm thinking on this race to pretty much do the DDW and only jibe downwind if (when) it gets real light. I'll try to do some VMG measurements on the way and report (assuming we are not to busy making meals with out chef aboard... really!) I do a similar race that I have placed pretty well in with no real feeling for jibing vs. DDW. I have done both, but the race has too many variables to provide a definitive anwer. BTW, any weather-junkies out there who'd care to hazard some projections of the race? Starts April 28th, noonish. Finishes whenever 20-30 hours later. Would love to know projections on wind speed and direction. John turned me on to a weather router, but I am way to cheap. Rick D.
 
Jun 5, 1997
659
Coleman scanoe Irwin (ID)
Have a great race, Rick!

Sorry for the slow response. Nelleke and I are loading the medical containers for Vanuatu and haven't been able to spend much time on the web lately. Although I haven't seen the polars for the 40.5 I assume they are not that different from the Catalina 42. If so, you should have pretty much similar VMG's (to a perfectly DDW mark) on a course anywhere between 160 and 180 at wind speeds around 16 knot true plus fairly flat water. Higher wind speeds and/or following waves will of course start favoring a DDW course and vice versa. Keep in mind, though that if the mark is not perfectly downwind, a DDW course will provide slower VMGs compared to a course straight to the mark. The same is true if the waves are not perfectly aligned with the wind. Squaring off on the waves should help you keep the boat flatter and reduce yawing losses. Haven't been able to look at the forecast. However, you will almost certainly have big swells all the way with confused seas near Point Conception and similar stretches. Consequently, the course you may have to sail may be more defined by wave than by wind direction. Hope you can manage to keep the rolling down..... Fair winds (> 16 knot) and following (flat) seas, Flying Dutchman
 
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