I have ordered the Atkin Bank Dory plans for the "Freda M. Himmelmann". I intend the use the heaviest, thickest marine plywood I can fit into the plans to plank it with, Sapele perhaps and a couple of hard and heavy planks set down low to lower the W/L.
I had the idea to use a very heavy indigenous or tropical hardwood, Ipe, shagbark hickory, black locust etc for the gar board plus maybe one plank. I have heard of people having problems gluing Ipe, locust and hickory but I am going to try the new West GFlex epoxy designed specifically for hard to glue woods to include reliable bonding of white oak and tropical hardwoods. Their white paper on it shows very positive tensile adhesion results with "Hard to glue" wood and plastics. In addition, I am going to put a little 9.9 Yamaha kicker in a inboard well, I don't like to row.
I already have a hydraulic raise/lower system engineered to pick the motor up and back to clear the bottom. I had a 24 foot Opheim dory made of mahogany when I lived in Kodiak , it was setup very similar. The mahogany logs washed up on the beach and Ed Opheim made a very nice dory out of them. The boat was almost 20 years old when I got it. I was not uncommon for tropical hardwoods to occasionally wash up on the beach in Kodiak, I was told by people who would know that they were "Fall Offs" from lumber carriers.
I do know that I want to get some weight down low in the hull and I want to build it out of mostly plywood, except for the stem, tombstone and gar board +1 plank as described above.
Has anyone ever ventured into this territory as I describe it? I think if I can get at least a couple planks set low that have a very high specific gravity, the weight of the little 9.9, a 8D Cat battery in a box to run a few lights, my l/w hydraulic pump and a cigarette lighter I can get it riding low enough in the water to put put around my favorite fishing spots without a exercise in initial and secondary stability. I realize I may have to coax some of the higher SG woods in a steam box to get them to commit to my project, but..I guess if you have to bend a hard board, a dory shape is about as good a shape that you could ask of it?
Am I trying to overcome a non-problem? The Sapele plywood with its .65 to .75 specific gravity seems already heavier than anything but a mahogany planked dory would be?
I also have access to some nice air dried cypress, cheap, that I could do the job with?
Comments not only welcomed but solicited