[quote=arch]leeboweffect,
i have owned 3 nacra 5.8's which were boomless sails. i had 3 fixed plate sails and one with an adjustable traveler. my memory was that when i hooked that back hole, the sail had 'major' draft in it, so i'm not sure all holes were 90d or forward of the rear beam. i obtained my top speed ever when using that back hole and 2 guys out on the wire in winds that were close to 14 knots.
[quote]Said another way, the back clew plate hole should between the mainsheet traveler track and the mast such that you are always pulling, at least slightly, on the foot.[/quote]
also, you're just considering the angle when the sail is straight back, mid-tramp with the traveler centered. when the main is traveled out or 'eased', the angle would not be backwards 95d as your picture shows. so you would be pulling slightly rearward on the foot at any other position than 'midships'.
in 'super-light' to almost no wind, a flat sail works best because there isn't even enough breeze to create any shape (draft) in the main.
here is a side view of one of my 5.8's. imagine the traveler at the leech position and it's 'backwards' too.
[img]https://www.thebeachcats.com/gallery2/main.php?g2_view=core.DownloadItem&g2_itemId=128478&g2_serialNumber=3[/img]
are you sure that main came from a 5.0?
j[/quote]
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