Ideas
for a Bamboo Boat
I
received a call today that started me thinking. A man was looking
for large Moso bamboo poles, 18 feet long. He asked about the possibility
of splitting them into strips and planing these down into rectangular,
flat strips. These were to be used to create a strip built sea kayak.With
strip building a form is covered with long strips of wood veneer
strips. When the hull is covered, it is sanded smooth and a layer
of fiberglass cloth is applied saturated with epoxy. This is done
inside and out creating a super strong shell. In most cases western
red cedar is used. The bamboo strips would have much more strength
than the cedar but would be heavier. Still, I think it's a great
idea and I asked to be put on his mailing list to see some pictures
when he finishes the boat.
I've built a couple of boats over
the years and still have the desire to build a few more. The first
was a "skin on frame" kayak. This was a framework of wood
covered with canvas and waterproofed. It had a big cockpit and was
very wide to make it more stable for the kids. The next was built
with very thin plywood. This method forced the plywood into compound
curves making a smooth, very streamlined, sea kayak. It was covered
inside and out with epoxy.
The next boat I build will use bamboo
in some form. I've started another baidarka (sea kayak) that will
use cedar for the longitudinals and split bamboo for ribs. This
will be covered with a strong dacron cloth that is waterproofed
after stretching it tight over the frame. The cloth and specialized
coatings available today make this type hull extremely tough and
resistant to punctures and abrasion.
I would really like to built entirely from bamboo. I've experimented
in using bamboo canes about 1 inch in diameter as 15 foot long "chines".
Most all the bamboo I can find with that diameter tapers a good
deal in 15 feet. I took two eight foot pieces of bamboo and cut
the base of each so that I had about 6 inches of internode. I used
a wooden dowel that fit snugly in the end of the cane. I cut it
12 inches long, coated wih epoxy and slid both canes over the dowel
so that they met, base to base. When the epoxy set I had a 16 foot
long cane that tapered from the middle toward each end. I made two
of these. They are still hanging in the rafters of my shop. Finding
the perfect canes was a problem. They had to be very close to the
same size in diameter at the base and taper equally. I wanted nodes
that were not very prominent, and no bends or curves in the bamboo
pole. I sorted through dozens of canes to find a few that were right.
These are hanging up under the eaves. The baidarka will have split
bamboo ribs and be lashed together. Lashed joints allow the boat
flexibility as it was designed for ocean use.