WA
1667 posts
If the stab shim increases down angle, that increases the lift at a given speed.
WA
1667 posts
I believe both Bruce and Mario are trying to reduce or eliminate whistling by the trailing edge. Bruce and his team had to do this a lot on the original AFS-2 foil stabilizer trailing edges (I had one).
WA
1667 posts
Hey Grant, you wrote: "Tuttle works best when the vertical loads are taken by the roof, we've known that for years."
You live up there. Talk to Rob Mulder about that.
Not one single Roberts or North Pacific or Mike's Lab (when he still made them) board with a tuttle box relied on inside roof contact to carry the loads. Instead, they relied on a tight fit of the front and rear rounded tapers to carry the entire fore and aft rocking loads from foils.
Inside roof contact is fine if you are matching board to foil brand and model, such as Fanatic and some others. They actually design their foils and tuttle boxes for that.
However, my AFS, Moses/Sabfoil, and Starboard tuttle tops (no flanges) come in all different heights, just like formula fins used to. If I mount my AFS or Moses/Sabfoil into my Roberts or North Pacific, or even my Fanatic or Exocet foilboards, there is zero inside roof contact. I use contact paper to check. Sailworks has even instructed on how to mount these to get front and back rounded taper contact to carry the huge loads. I have never had a box failure since 2017.
WA
1667 posts
Cataract surgery. Took care of the cataracts, and the new lenses had a prescription to correct my nearsightedness.
