The Classic Canoe
Several thousand years ago somebody dragged a Cedar
tree out of the forest and proceeded to dig the wood out of it to make it
hollow in the middle. He created the first dug out canoe.
For the time it was a very convenient way to make a
vessel to transport himself for long distances over the water.. He did not
have the advantage of today's technology so he was not aware of and
totally unconcerned about the hydrostatics and hydrodynamics of the hull
Canoe hulls were manufactured in this fashion for many
thousands of years and were improved upon as all things will be as time
goes by. At some point in time a new method was found to make a much
lighter and more manageable vessel...the birch bark canoe and it's
derivatives were born.
The shape of the hull however stayed the same
symmetrical shape of the hollowed out log, once again with no regard to
hydrodynamics. The shape of a tree trunk became the traditional shape for
even modern canoes of aluminum and plastic, simply because that shape had
been used for eons. It is almost unbelievable that that with today's
technology, canoes are still being manufactured with little regard for the
hydrodynamics of modern hull shapes.
Compumarine's Classic Canoe hull has the shape that all
displacement hulls should have. (Click on Lines
Drawing to the right for specifications!) Displacement hulls are
those hulls that are designed to move through the water, not on top of it
like a power boat's planing hull form.
There are several key features to the modern shape of
a displacement hull....a
sharp angle of entry at the bow sections, the
greatest depth of hull just forward of the midship section at
approximately station four, the center of displacement just aft of the
midship section at approximately station six, and the greatest width of
the hull a little further aft at approximately station seven. As the hull
moves through the water it parts the water gently, then after it has been
displaced past the center of displacement the water flow past the hull
then closes quickly creating the least amount of turbulence and the least
possible amount of drag. This hull shape produces the least amount of
friction to the flow of water around the hull of a displacement type boat.
Lots of dollars have been invested over
many years on
computer research and tank testing by Naval Architects to
determine the proper shape of displacement hulls for America's Cup
sailboat racing and for many other displacement type hulls. The basic
features of the shape that has resulted from all this research, is the
ultimate shape for any displacement hull from a two foot model to a
hundred foot sailboat or any size in between. Obviously there are many
differences in beam widths, drafts, displacements, waterline lengths bow
and stern shapes for different types of displacement craft but the basic
features of this asymmetrical shape should apply. This is the shape that is
designed into all of Compumarine's displacement type hulls including the
The Classic Canoe plans package includes full size
patterns for station molds, the stem and stern pieces. Specifications are
provided to allow you to build the hull in your selected length from 12 to
21 feet. Cedar strip/epoxy construction is the ideal technique for
amateur boat builders. With just a few hand and
anyone can build there very "work of
Art"with little or no wood working experience.
It is easy to glue 1/4" x 3/4" cedar strips
together over a simple set of plywood or particle board molds that you
have cut out with a hand held jigsaw. Give it a try! It is a lot of fun to
build your own hull and the satisfaction you receive is priceless.
Plans Price $139.00 Including Shipping & Handling
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