[quote=texastuma][quote=revintage]Have taken a new look in my workshop and found a Nacra 5.5 mast to chop up for two 10ft beams. The beam pockets are quite narrow so the beams will be positioned with the luff track upwards. With the track cut away, the section is 105x76mm.
[img]http://revintage.se/mastsection.jpg[/img]
Striker rod from M16 316 threaded rod, Nacra style, with 5mm DUX Dyneema instead of striker band. An 1.75" Delrin ball fits perfectly in the almost antique Tornado mast base I found.
Will try out the cut down alu Tornado mast w/o spreaders to begin with, as it most likely is to stiff for the Slingsby main. Nothing wrong with a fuller sail, as this one is 50kg heavier with a lot more RM. I am also open for trying it boomless with a stiffer lower batten.
[img]http://revintage.se/drawing.png[/img]
Just found out the SL16, with exactly the same Yves Loday designed hulls as KL15.5, where made by Nacra for the US market:
[url]http://www.jimyoungsailing.com/b_sl16.htm[/url]Edited by revintage on Nov 23, 2021 - 11:19 AM. [/quote]
What about moving the forestay hound up a bit, add short spreaders with pre-bend? Could give you some bend control... or make the diamond tension adjustable? We did that on a 5.2 in the 90's. Had the diamond adjustable from the wire...[/quote]
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