I'm heading out to meet some friends in a few minutes, but I wanted to post this up quickly and see what everyone thinks. In one of my first posts on this site I alluded to a boat design I was working on. It is based on an Adirondack guideboat, which I am obviously a fan of, but suited specifically for solo tripping. I wanted it to fit in nicely with solo canoes. The main goal is to cut the guideboat weight down to solo canoe levels while still maintaining the speed and considerable seaworthiness.
So without further adieu, here is what I have so far. The hull will be cold molded out of 1/16" plywood (2 layers), but it could easily be strip built. I just want to try something different and see what kind of strength to weight ratio I can get with a cold molded hull. It will be glassed on the outside (S-glass) with a layer of Kevlar on the inside. Beam is 35". Length is just over 15'. LWL is right at 15'.
At 200 lbs displacement and a 3" waterline it has 19.8 ft^2 wetted area and a prismatic coefficient of 0.64. The total surface area of a Grant design guideboat is 58 ft^2. That is the main number I'm trying to cut down to conserve weight. For comparison a John Winters' Osprey or Kite is 47 ft^2. My design is 49 ft^2, so if built in the same style as an Osprey it should weigh just a little more. I don't have a full lines plan yet, but I'll post pictures of the station molds for now. More to come later. Also, don't expect to see a finished boat anytime soon. I am trying to spend more time this summer tripping instead of building, so it might not be until next year that I start construction. That said, if anyone is interested in building a strip version, you are more than welcome when I actually finalize the plans.
I'm forgetting so many details. Due to the reduced beam it will have minimal outriggers. The hull below the waterline is symmetrical but it is swede form above the waterline to carry the max beam as far back as possible for the oarlocks. Bow Height 18". Stern height 15". Amidships sheer 12". Rocker 1.5". More to come when I'm not so busy.
So without further adieu, here is what I have so far. The hull will be cold molded out of 1/16" plywood (2 layers), but it could easily be strip built. I just want to try something different and see what kind of strength to weight ratio I can get with a cold molded hull. It will be glassed on the outside (S-glass) with a layer of Kevlar on the inside. Beam is 35". Length is just over 15'. LWL is right at 15'.
At 200 lbs displacement and a 3" waterline it has 19.8 ft^2 wetted area and a prismatic coefficient of 0.64. The total surface area of a Grant design guideboat is 58 ft^2. That is the main number I'm trying to cut down to conserve weight. For comparison a John Winters' Osprey or Kite is 47 ft^2. My design is 49 ft^2, so if built in the same style as an Osprey it should weigh just a little more. I don't have a full lines plan yet, but I'll post pictures of the station molds for now. More to come later. Also, don't expect to see a finished boat anytime soon. I am trying to spend more time this summer tripping instead of building, so it might not be until next year that I start construction. That said, if anyone is interested in building a strip version, you are more than welcome when I actually finalize the plans.
I'm forgetting so many details. Due to the reduced beam it will have minimal outriggers. The hull below the waterline is symmetrical but it is swede form above the waterline to carry the max beam as far back as possible for the oarlocks. Bow Height 18". Stern height 15". Amidships sheer 12". Rocker 1.5". More to come when I'm not so busy.
Attachments
Last edited:
