| Re: Upwind targets
[Re: Mookie]
#282259 03/24/16 05:42 PM 03/24/16 05:42 PM |
Joined: Jun 2015 Posts: 4 Mookie OP
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Posts: 4 | | | | Re: Upwind targets
[Re: Mookie]
#282260 03/24/16 05:59 PM 03/24/16 05:59 PM |
Joined: Nov 2011 Posts: 382 SE MI / NE IN rehmbo
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Posts: 382 SE MI / NE IN | No such thing as polars I'm afraid - at least none I've found.
Only comment I can offer is in the 2nd question.
Its faster to ease in the puffs. However you have to consider you and your crew's ability to do that for a full day of sailing. Truth is some combination of easing/feathering which is very dependent on a whole host of variables. However, as a general rule, assuming you're overpowered, the more you ease the faster. However, don't ease so much that you're footing too much.
Also, don't forget the cunningham. It's an incredibly effective de-powering tool. I've been told the goal is to adjust the cunningham such that your sheet adjustments are only inches (not feet) at a time. If there are lots of variations in wind strength, it might require 3-4 cunningham adjustments on an upwind leg.
Last edited by rehmbo; 03/25/16 05:13 AM.
| | | Re: Upwind targets
[Re: Mookie]
#283022 07/08/16 06:11 AM 07/08/16 06:11 AM |
Joined: May 2006 Posts: 1,383 Kingston SE South Australia JeffS
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Posts: 1,383 Kingston SE South Australia | The fast 4.9 sailors here don't have a cleat for the main and constantly work it,the downhaul is worked hard as well, heading up is not really fast IMO, do ou have the latest big head sail
Jeff Southall Current boats Nacra 5.8 1703 Animal Scanning Services Nacra 5.8 1667 Ram Raider Nacra 18 Square Arrow 1576
| | | Re: Upwind targets
[Re: Schnoogie84]
#283151 07/22/16 09:33 AM 07/22/16 09:33 AM |
Joined: Mar 2009 Posts: 932 Solomon's Island, MD samc99us
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Posts: 932 Solomon's Island, MD | Just thinking out loud, wouldn't heading up in a puff be 'faster' in the upwind leg, as in each puff you are gaining some height? Nope, its all about VMG. Most monohulls don't plane upwind, so this can be true for them, but those that do (505's, 49er's, I14's, big canting keel monsters) often have two modes, a point high mode and a faster VMG, couple degree lower mode but in full tilt plane. Often, and this is especially true for high performance beachcats equipped with the latest high-tech foils, it is faster to ease, come down a few degrees, accelerate, then you can climb on the foils back up to the previous height but with more speed. Key is not to come down too much and go reaching around the course instead of upwind. In big breeze if you run out of downhaul and diamond wire and are still easing main, dropping the traveler a few inches may help, allowing you to keep leech tension on with less pressure in the main.
Scorpion F18
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