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chophop
Joined: 16 Apr 1996 Posts: 230
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Posted: Fri Jul 12, 2019 3:05 pm Post subject: Wave Sailing--Planing out--Board Volume ;Sail Size |
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I like to plane, not slog and I am not great at slogging. I am working on my slogging skills.
I got a big (105 l) Goya thruster for those really light wave sailing days.
It works well with a 5.3 to allow planning in a certain wind speed-- maybe 13-16 mph where I might not be able to plane with a smaller board, even a 94 l.
I can also water start it in lighter winds-- at the very edge of water startable conditions; maybe like 10 mph. Of course, at a certain low wind speed it is not going to plane and at 10 -11 mph it is all i can do to slog and stay up wind I have no maneuverability to move around and catch and ride waves, or get back up wind if I do get a wave.
My question is whether you need to scale up the sail size too to help account for the very obvious greater drag of a huge board? The bigger fins and greater wetted surface seem to actually take a good of power to move.
Also in those super low wind conditions where water starting can be difficult to impossible will drastically lowering the boom help you to get the sail more upright and get you up on to the board?
Thanks
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dllee
Joined: 03 Jul 2009 Posts: 5329 Location: East Bay
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Posted: Fri Jul 12, 2019 3:50 pm Post subject: |
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Depends.
Can you afford a 6.5 wave sail breaking the mast when you fall?
When does size offset turning?
How much gear can you carry and willingly rig?
Lots of top pros use 6.2's on their biggest boards.
Less down and out can make up .5 when underpowered.
Bigger sailors go as big as 7.0, but breakage is a problem. |
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dllee
Joined: 03 Jul 2009 Posts: 5329 Location: East Bay
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Posted: Fri Jul 12, 2019 5:17 pm Post subject: |
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In Florida, guys ride waves with 150 SUP's rigged with 7 meter sails.
On a long ago trip to Punta Abreojos, one of the guys rode his 205 liter board with his 7.4 fully cammed slalom sail, and rode DTL from outside point to the Fed Marine Base and kicked out just before the closeout shorebreak, at least 10 frontside bottom turns and cutbacks off the top.
Where should the line be drawn? |
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dllee
Joined: 03 Jul 2009 Posts: 5329 Location: East Bay
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Posted: Fri Jul 12, 2019 5:51 pm Post subject: |
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To get upwind against current and sideshore winds, dedicate half your wave count to strictly upwind going backside and toss in a few shove-its when bored.
Adjust as needed.
As for boomheight...you set your boom height for the best combination of all factors, sailing ease, comfort, and performance. Should u lower your boom to compromise all of the above?
Or maybe grab the mast halfway down your boomhead and go for the foot of the sail with the other hand. |
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d0uglass
Joined: 28 May 2004 Posts: 1286 Location: Bonita Springs, Florida
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Posted: Fri Jul 12, 2019 6:49 pm Post subject: |
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I live in a light wind, crummy-wave area and I do most of my wave and bump and jump style sailing with a 6.8 aerotech phantom on my 106 liter fsw board. The extra horsepower is really helpful. I went a long time where I used a 6.4 as my go-to sail, and that was fine, too. Better to be planing than COMplaining. If the wind gets too light to plane consistently with the 6.8 but the waves are still OK, I'll put it on a WindSUP board. _________________ James' Blog: Windsurfing Equipment Size Calculator
http://jimbodouglass.blogspot.com/2010/11/updated-windsurf-calculator-online.html |
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jingebritsen
Joined: 21 Aug 2002 Posts: 3371
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manuel
Joined: 08 Oct 2007 Posts: 1158
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Posted: Sat Jul 13, 2019 12:02 pm Post subject: |
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You must sail around other riders, how do they manage? Do you have sideon conditions? 5.8 power sail will be much stronger than a 5.3 wave sail. 105 is perfect. As for the waterstart, so long as the sail catches the wind when you throw it up, 8 knots is enough for 5.0. Next waterstart video coming soon! _________________ *NEW* - Manu's Windsurfing Blog, The STORE! |
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jingebritsen
Joined: 21 Aug 2002 Posts: 3371
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capetonian
Joined: 11 Aug 2006 Posts: 1197 Location: Florida
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Posted: Sun Jul 14, 2019 3:23 pm Post subject: |
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It depends on the location you are sailing. If there’s a channel so you don’t need to go over broken waves, then slogging with a 5.3 is easy. But if you have to get over white water then sail power helps. Not necessarily enough power to plane, but definitely enough to pop over the white water. And if it’s cross onshore then you pretty much have to be planing to have a chance of getting out. Currents also impact the amount of sail power you need.
I spent a lot of time in Hawaii and other good wavesailing spots before moving to Florida. It took me 4 years of frustration to learn that I was better off with a 7.0 and a 116 L FSW (I’m 180 lbs) and just be grateful for the semi wave riding wiggles I do on the waves here, and keep my wave board and smaller sails for trips to Hawaii or Pistol River. |
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capetonian
Joined: 11 Aug 2006 Posts: 1197 Location: Florida
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Posted: Sun Jul 14, 2019 4:06 pm Post subject: |
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If your board floats you, get an up haul. I’ve had amazing slog and ride sailing in spots with a channel where the only way to get going again was to uphaul. |
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