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joe_windsurfer · 11th December 2011, 05:16 PM

do NOT know the Atom - from what i found it is only 99 litres ??
and for light winds they speak of it handling 9m sails ??

what is your definition of light wind
with a bum knee, will you only do waterstarts or ??
the difference between 7-oh and 7.5 is minimal
based on james douglass' sail calculator there is a difference of one knot
7.5 should be good to go around 15 knots for your weight
if you are in steady solid winds - even less wind is required
i use an MS-2 8-oh cammed sail in winds 20 to 40 kph on a 160 liter 79 cm board
under that i use a CAT longboard with the same sail
i weigh a bit more than you though - 100 kilos ...

sounds to me you may need more sail than 7.5 if Atom is a sinker !!

btw the MS Pursuit is okay with constant curve or hard top masts ONLY - no NP !!

lotsa luck !!

11th December 2011, 05:16 PM	#2
joe_windsurfer Member Join Date: Apr 2009 Location: Montréal (PQ) CANADA Posts: 196	do NOT know the Atom - from what i found it is only 99 litres ?? and for light winds they speak of it handling 9m sails ?? what is your definition of light wind with a bum knee, will you only do waterstarts or ?? the difference between 7-oh and 7.5 is minimal based on james douglass' sail calculator there is a difference of one knot 7.5 should be good to go around 15 knots for your weight if you are in steady solid winds - even less wind is required i use an MS-2 8-oh cammed sail in winds 20 to 40 kph on a 160 liter 79 cm board under that i use a CAT longboard with the same sail i weigh a bit more than you though - 100 kilos ... sounds to me you may need more sail than 7.5 if Atom is a sinker !! btw the MS Pursuit is okay with constant curve or hard top masts ONLY - no NP !! lotsa luck !! __________________ joe windsurfer @ 100 kg 2006 AHD type-F FF 160/79cm, 2002 BIC Techno Formula + 2000 Fanatic BEE 124 LTD Gaastra Flow 3x 7.0, MS MS-2 8.0, TR4 10.0 To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. Last edited by joe_windsurfer; 11th December 2011 at 07:54 PM.