it's possible to indicate an approximate value of camber for the two cases?

Thanks

Flat - 11 to 12%
Full - 13 to 15%

(% of chord length)

I expected lower numbers ......

Agreed

Full:



Flat

Hey Scoobie, what is that line on your sidestay (or trapwire) for?

Dont forget to include the mast when looking at the draft. A sail designed for 10% draft will probably be 12% when put on a rotating mast.
10-12% is in the ballpark in my experience.

The wonders of PhotoShop:





The sail looks seriously screwed up in the second photo. The leech is very loose up top. Draft is too far forward.

Top of the sail is too twisted away, I have fixed that with some work on the sail battens.

Sail now stands up better when loads of DH is applied. Did some work on it with different top battens.

I'm light so I am quite happy with the draft well forward and little of it!

Stops the Spinnaker being pulled up between the forestay and sidestay wires and getting jammed in light wind ( you can virtually use the flat spinnakers we use on the F16's as reaching sails )

Yep. It also helps me sailing very high in very light winds to tack the kite with less risk of snags.

gotcha.. thanks... i never have a problem like that.. my problems are at the waterlevel.