A Photo & Discussion Forum for Wharram Design Enthusiasts
In your post you write "the new sails are fantastic!" - which reminded me of something. I am going to make all the sails myself. Which in itself is very feasible when you know what to look for in a good sail. I have already designed several headsails for different conditions. But I am unsure about the main because the plans give so little 3D information. Only the outline is presented but there is nothing about draft-depth or draft-location. Can anybody say anything about this. For instance, is the sail totally flat when you lay it on the floor, or does it wrinkle in strategic spots. Anyone who can comment in a way that may be put to practical use.
Greetings from The Netherlands,
The luff-sleeved Wharram wingsail is dead flat; draft/camber is created as the luff sleeve rotates around the mast, with the main sheet(s) and the downhaul available to locate the position of the draft. If draft/camber is built-in, the sail will always be baggy, leading to the inability to trim or ease properly.
Here is a shot of my Rolly Tasker wingsail right after I hung it for the first time:
ah so you got out eventually Kim,with all the stretching and so forth what are the advantages of synthetic rigging?