Old 28th August 2011, 04:51 PM   #1
MarcoM
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Join Date: Dec 2010
Location: Netherlands
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Default fin size Ultrasonic

Could anyone recommend me the fin size for the ultrasonic with:

North s-type 9,5
North RAM 8,5
North S-type 7,8

I have a C3 sting 48 will this do for the S-type 7,8?
and the standard drake R13 58 for the 9,5 and the 8,5?

(my weight is 95kg and lenght 1,95m)


thnx in advance
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Marco

F111, F93 ('11)
North RAM F11 8,5
North RAM F12 7,8/ 7,0 / 6,3 / 5,7 / 5,2
North S-type 9,5('11)
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Old 28th August 2011, 07:34 PM   #2
mark h
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Some good reading here:

http://www.windsurfing33.com/forum/v...p?f=15&t=59113

http://www.windsurfing33.com/forum/v...p?f=15&t=57860

Do you find your S-Type 9.5m has a lot more power than your Ram F10 9m? I been thinking of getting a S-type 9.5m just for super light days
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The toys:
iSW44 - - iSW49 - iSW53 - iSW58 - iS107 - iS137 - F161.
North Warps: F2012 5.2m, 5.7m, 6.3m, 7m, 8m, 8.6m, 9.5m F2006 11m.

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Old 30th August 2011, 06:02 PM   #3
MarcoM
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Mark, thanks for your reply.

And yes there is much difference in lowend power. The Ram is more stable in the high-end and the S-type has a massive power in the low-end. You can see the difference when you rig the sails. The s-type has much more a belly. The RAM is more flat

I like both the sails very much. Easy rigging and both stable sails.
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Marco

F111, F93 ('11)
North RAM F11 8,5
North RAM F12 7,8/ 7,0 / 6,3 / 5,7 / 5,2
North S-type 9,5('11)
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Old 30th August 2011, 09:41 PM   #4
mark h
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Excellent news because I bought the S-type 9.5m this morning I love my Warp 9m/iS137, but at 100kg, it is best in 12k to 20k warm winds, lower winds feel slow and underpowered. Hopefully the S-Type 9.5m will solve this problem out. My Warp 10m is high wind Formula, so it is no more powerfull than my 9m Warp.
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Cheers - Mark H

The toys:
iSW44 - - iSW49 - iSW53 - iSW58 - iS107 - iS137 - F161.
North Warps: F2012 5.2m, 5.7m, 6.3m, 7m, 8m, 8.6m, 9.5m F2006 11m.

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