Building an International Canoe

Goals

weight, stiffness, strength (plank torque & attachment points for sheets and slide for seat

Internal Structure

trim edges, attach bevel for deck, shroud plates

edges 1 shroud plates shroud plate installed width=

install upper king plank

upper king plank 1 upper king plank 2

working stern to bow...

install bulk heads around rudder

bulkheads around rudder

install bulk heads around daggerboard

bulkheads around daggerboard 2

Compared to a Carbon Hull

Rob Michaels was kind enough to send pictures of these two asymmetric equipped International Canoes, with carbon fibre hulls, under construction in his shop.

robs boats 1 robs boats 2 robs boats 3

As you can see his carbon hulls have considerably less internal structure than mine does. Its an interesting contrast. My boat is very stiff but I suspect it is also fairly over built. It could probably have about half the bulkheads and the cross pieces removed because the deck should provide much of the same support to prevent the bulkheads from bending. This would result in a fairly substantial weight savings. On the other hand, perhaps the carbon hulls are much stiffer and require less support to hold them rigid.

From the emails I received from Rob I am not sure if these boats will have more bulkheads added before the deck is attached. It sounded like there won't be, but I'm not sure.

Deck

deck weighted down deck deck completed

Bowsprit Tube

bow deck support (concave v. convex... spray, jib, bow sprit)

allowance for bow sprit

foredeck 1 foredeck 2 foredeck completed 1 foredeck completed 2

weights, 2 layers ply

reinforcement for blocks, attachment points is extra layer = 3 layers

why this way?

what went wrong

the fix