Subject: [harryproa] T-Foils on a Proa?
From: "Jim Baltaxe" <>
Date: 11/27/2006, 9:55 PM

Hi All

I just found this on multihull boatbuilders list:

> The ostensible purpose [of partial lifting foils] is to moderate the
> of narrow multihulls to pitch as they travel through the water, as I
> it, and also they serve as fences at the bottom of the rudder, acting
> increase the functional aspect ratio. Both of these would be helpful
to me,
> since the little cat I'm building is designed to be as hassle-free and
> idiot-proof as possible. To that end, my rudders are fixed and of low
> aspect ratio.

An example of this is found on Darryl Barretts Formula 14 cat.

Would this be useful on the Single Rudder version of Elementarry? The
pitching control may be taken care of by hull shape as Rob has pointed
out before, but the effective aspect ratio might be worthwhile.

Jim Baltaxe
ITS Desktop Support
Victoria University of Wellington
(04) 463 5018 or 027 563 5018

I suffer from mental incontinence.

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