OK, not an expert, although I sail Asso skiffs.
The luff is usually longer because (1) that edge slopes well forward and the leech is often vertical (more or less in line with the mast) or only a little aft and (2) the leech - and thus the clew - is often high cut.

I didn't see any diagram. How does your look by comparison.

Way to go B.B.! An Aso on a little Sonata, wahoo!
What is your intended wind angle and speed, ie: is it a reaching kite or deep VMG kite, or more of an all rounder?

Bananabender said..
It is done on the CAD system. See below. I advised that I did not intend to race and would be using in not more than 10 apparent . They have just delivered a new main and jib recently and had all measurements on file as well IPS and TPS . Could it be because it is masthead rig?
Ha gets a bit boring without a kite downwind Shaggy and the old sym has more patches than original so decided an assy was the way to go.
Hell what's the worse that could happen.
Ideally I wanted reach -VMG mode.

Hi BB,
I'm no sailmaker, but I'm scratching my head over the fact the leach is longer than the luff. This makes sense on a Code 0 maybe, where the luff is tensioned on really hard (like a headsail) with the leach more rounded, and the clew is a long way behind the mast, but on a deep running kite?
I keep thinking that when you're running deep, you ease the tackline to have as much of the kite on the windward side of the forestay as you can, so this would shorten the luff more, exaggerating the difference, Thinking simplistically, your clew will be lower than the tack.

Sorry mate, I don't have the knowledge to understand this. I'd be interested if anyone explains this, it seems odd to me. My aso's certainly aren't.
Regards,
SB

Will do

In your diagram, tack, clew, head, and luff, leech, foot are not labeled, are you only assuming the leech is longer?

Something really wrong here, none of those measurements make sense, even the area.
Might be symmetrical but just buy a few etchell kites.
luffs are 8.0m

I don't get the idea behind a huge assy which is limited in use and huge in costs.
My code 0 or reacher's foot is 20'4" and the J is 11'10" which is about 172%
As a single handed cruiser I would not bother with a spinnaker most of the time.

That looks MUCH better!!
Good result BB.

shaggybaxter said..

sirgallivant said..

I don't get the idea behind a huge assy which is limited in use and huge in costs.
My code 0 or reacher's foot is 20'4" and the J is 11'10" which is about 172%
As a single handed cruiser I would not bother with a spinnaker most of the time.

Horses for courses SG, the little Sonata's do need a bit of sail to go DDW and they're not very hard to manage.
I do know what you are saying though, I have a medium aso kite in a sock that is easy to single hand, just furl away the headsail and stand in the middle of the foredeck to launch/retrieve (need autopilot though), but my go-to kite for single handing is my gennaker, as it has a wire luff and a furler. You can set it and leave it there all day long, gybing is simply a case of furl/unfurl.
Sucks for running VMG numbers though, unless its blowing like stink.

Thanks SB. I know exactly what you mean SG .
I bought her to do pleasant day sails and do a bit of navel gazing.
Unfortunately the racing bug was still lurking deep down.
I am only relieved she's small as the go fast $$ are mounting up and I'm only racing against myself!