Howdy, I have a 91ltr slalom, I weigh 75kgs, what's the biggest sail you would pair up with this board?

sick_em_rex said..

7.5 / 7.8

interesting you say that - i was out today with a 7.7 and a 121ltr board, no way I think i cold manage the 7.7 on the 91lt

mathew said..

Port Philip Bay this arvo... I am 74kg... iSonic 74 + 27cm fin.... Koncept 7.5m

I really does depend on what you are used to.

ok - fair enough. sounds like i need to get used to a bigger sail on the 91ltr

Sputnik11 said..

mathew said..

Port Philip Bay this arvo... I am 74kg... iSonic 74 + 27cm fin.... Koncept 7.5m

I really does depend on what you are used to.

where were you out, out of interest?

St Kilda / Port Melbourne

I tend to think it gets the best seabreeze-effect... not gusty at all - most folks on 5.8/6.2

joe windsurf said..

guess it would depend on board width, sailor skills, weight, etc ...

the 2013 Isonic 90 is marked as having a sail range of 5.1 to 7.0
2 square meters is a realistic range ...

would REALLY like to see a clip of someone on a 90 liter board using a sail approaching 8-oh !!!!

I have used my 10.7m RS Racing, on my 95'ish slalom board... pretty silly really, but did get me planing in about 10-11kn. Could gybe it, but not planing... more of a flip'n'waterstart.

joe windsurf said..

guess it would depend on board width, sailor skills, weight, etc ...

the 2013 Isonic 90 is marked as having a sail range of 5.1 to 7.0
2 square meters is a realistic range ...

would REALLY like to see a clip of someone on a 90 liter board using a sail approaching 8-oh !!!!

Here is some proof. reflex3 7.8m with a 2012 Isonic90 and a 36cm carbon pointer. This was my bread and butter combo for the last 12months. It works in 15-25knts no worries. Pretty quick too.
EDIT: I weigh 80kgs

I've used a friends 8.4 Koyote on my 95L AHD SL1 w/ a 37 fin and found it to be "acceptable"

Mark _australia said..

Modern 91L that is fat.... or 1990 speed needle 91L?

modern

I reckon you have to consider water state and wind steadiness. A big sail on a small board can be awesome fun in steady winds and flat water. It can be an exhausting painful affair in choppy, gusty conditions.

I'd much prefer a big sail on a small board over a small sail on a big board. Your 'engine' (sail) moves your board. Yes, if you're interested in only practising some basic freestyle moves in light winds & not planing - but that's not what most are trying to achieve. A large sail can work well on a small board when blasting on flatwater & chop-hopping, providing it's rigged right & you use a fin that matches the sail size.

There's nothing worse IMO than putting a small sail on a big board in a strong wind - my body hurts just thinking about it.

Yuppy said..

I ride in port Phillip. Am 75 kg. I tried my 7.8 on my 100 l freestyle wave. Felt stupid! Awkward.

I recommend a bigger board for the light winds.

It s more fun using your 6 m on a 150l board and practicing your helitacks.

Give the SUP with a plug for your rig a go. It's more fun than you think

Freestyle waves are not suitable for big sails. 100L freestyle wave would be at it limit with a 6m sail. Slalom and Freeride boards are built for larger sails. Same volume (100L) slalom board can handle nearly 8m.

I'll add that a lot has to do with rail shape too.
Example was using a 6.6 KA Koncept on a S-Type 93 (close to 100l) with a Choco Fireblade 36 fin.
Was ok, but anything smaller than 34 fin with that and it gets harder to sail and slips a lot.
But then just for fun on a few last runs, i put the same sail on on old Windtech 8'10" (about 80l) with a Choco FB 30 fin and it was great. Rock solid and i was under powered. I could also point upwind more.
The S-Type has soft rails right back to the straps, Windtech hard rails all the way.

I used my rs slalom 7.8m with 90l - 62cm slalom board in the pic below. I used to love this combo in rough water in lighter days when a big board gets knocked about. When I upgraded to a later model rs slalom which had more grunt the board wasn't as happy!