> I'm wondering about the 10.5 VMG myself...the VMG's are very light in the upper
> panels (lighter than the NP sail)...for weight, I think it's the way to
> go...also, as a higher aspect sail, the boom throw is less extreme (shorter
> boom length).
> Sailquick Roger may have some notes on the Revo in this size.
To both Michael's et all.....
In my experience, if you want really good lite air performance, you
need something with a little lower aspect ratio and alot more static
If you want to sail a 10.5 in 13-18 knots, and have marginal low end
power (i.e. under 10-12 knots, then higher aspect is the way to go.
I don't think you can have it both ways.
Lower aspect ratio, lots of overall draft, will create lots of low end
grunt (i.e. the sail will pull you right up onto a plane in 7-8 knots
Retro here, the largest they make) but these sails are far more
with an adjustable outhaul as the clew tension in a "perimeter loaded"
sail like the Retro actually bends the mast, pulls the draft forward and
loosens up the leech up at the top of the sail. So, slack the adj.
for "locomotive like" low end power, and then tighten the outhaul once
you get up to say 12-14 knots, and you get less draft, and a flatter
(even negative if you really use both the downhaul and the outhaul)
upper profile for good top end speed and stability.
A race sail, like the VMG, needs to be tuned pretty flat, which
the overall draft (especially in the top of the sail where the static
may actually be negative). So, less draft equals less low end "grunt"
flatter profile can be pumped (alot) to get the apparent wind moving
the sail, and then, once you get the apparent wind up in the 12 knot
"Race" sail will make good power and have lots of range.
So, I guess the obvious question is, are you buying these sails for low
power (the ability to simply pull you and your board up onto a plane
little or no pumping in 7-9 knots depending on the board, the sailor
and the sail size), or do you want to pump alot, to create the apparent
required to get a taller, higher aspect ratio but overall significantly
drafty sail going, but have more top end stability and speed designed
If you sail in conditions that are 8 g20 all the time, the VMG may be
choice, but a properly tuned Retro or one of the less drafty camless
will do essentially the same thing if tuned for the conditions.
It's your choice, but put very simply, draft= low end power, which is
characteristic of slightly lower aspect ratio sails.
If they make a 10.5 VMG raceboard sail (i.e. for longboard racing) I
it to have a lower aspect ratio, and more static draft, therefore better
sailquik (Roger Jackson) US 7011