Vole evolved from WeeVee.
She is a lot less extreme in the deep V department, but
more extreme in the beam. In particular Vole should be
a lot better as a knockabout sailer.
VOLE, ROW/SAIL DINK, 7-1/2' X 5', 70
Vole is a large dink. In particular
Vole is short enough to be called a dink but is wide enough
to maybe twice as long.
Dinks have a problem carrying weight
simply because they are so small. If you weigh 200 pounds
and your boat weighs 100 pounds, the total weight will
equal about 5 cubic feet of water. It may not sound like
a lot but there are very few dinks that could handle it
well if they are streamlined at all underwater. The streamlining
usually reduces the underwater volume, compared to a square
ended prism with the same cross section, by half (the
prismatic coefficient). Then if you don't want a flat
bottom, thinking it might be slow and clumsy, you can
reduce the available volume again by half by using a round
or vee bottom. So then when you start sizing the boat
by saying it needs an underwater box (equal to draft x
beam x waterline) of almost 20 cubic feet to carry that
weight. Then a short hull with 7 feet of waterline and
4 feet wide will draw about 9" of water. There is
no getting around this type of figuring, al least not
on this planet and in water.
So Vole is 5' wide at the top. She has
a shallow V bottom which will make her go a lot better
than a dead flat bottom in these proportions. The extra
width will make her fairly stable and roomy for a dink,
but she'll be too big to use as a tender and maybe clunky
to cartop. I would expect her to sail pretty well, even
with a crew of two. I gave her a sharpie sprit rig which
might be the best cheap and simple sail rig. But you have
to accept the 16' mast on a 7-1/2' hull. Don't expect
to be able to reboard a boat like this in a capsize. There
is usually no room for both flotation and crew. Any open
boat without substantial flotation that swamps will be
Vole is made from three sheets of 1/4"
plywood with taped seams. No jigs, no lofting.