Might work on a smaller harry. But major problem for a visionarry.
See http://www.foils.org/sailfoil.htm for info regarding foils and
their designs. I think unless it can get the boat out of the water
you will have it will be causing drag most of the time or not
sufficiently robust in a retractable arrangement. Fiberglass lacks
rigidity, the reaction plane will take some significant changeable
loads from your sensor canard wing. Moving wings or not, loads will
shift with speed and angle of attack. My guess is there are some
practical limitations, enough folks have tried the wings on all kinds
of craft.

If you want to pursue the idea for more input maybe start another
thread, with proper subject line. I think perhaps there could be
some hull shape changes, strakes or other methods to limit nose
diving, pitchpole scenarios. Certainly the longer narrow LW hull
helps that issue, but perhaps more can be done. For instance the
mounts for the rudders are Very LOW to waterline. What if the bottom
bracket had an additional appendage that added lift if submerged ?

Maybe not needed but could be interesting. We will soon get the
visionarry initial sea trials and perhaps they will provide some
feedback on performance in 6-8ft+ swells. Maybe Rob & Michele will
even give us an update on build status to date. This does constitute
an official (dig). However we all know there is no obligation to
post updates, since none of us are paying. Maybe that's what we need
is paid subscriptions to "H-Proaworld". We have 137 folks with
interest.

JT

> I was thinking of minimal foils for damping hobbyhorsing rather
than
> for creating lift. One of my hobby horses is that my experience
> suggests that pitching going into seas causes all sorts of
reduction
> in speed and reduction of that pitching greatly improves the speed
> and comfort of passage making and also increases the number of
those
> willing to sail.
>
> More comfort so passengers and crew can handle more speed and make
> fewer mistakes and not have to heave to as early;
> Less strain on the gear so you can press harder without fear of
> breaking things;
> Less drag from wave action;
> Better flow over the sails so better lift to drag ratio;
> Better flow over the foils;
> Props also work better if they stay in the water;
>
>
> In general I agree with you about the hassle of lifting foils.
> I still think that a foil on the ww hull with a sensor a bit like
> that on the Hobie foiler would be worth looking at for a racing
Harry
> for ease of keeping the hull just airborne or possibly a Fritz type
> foil <http:/proadesign.com> and possibly a Fritz type foil on the
ww
> hull for a cruising Harry, thus reducing the depths needed on the
> rudders. I should try it on my small Harry type, though I am not
sure
> how I can get it ti lift smoothly. Maybe fold in from halfway down
> the leeward side of the ww hull (where it starts to curve under)
from
> a hinge on the top of the foil.
> Robert
>