Something in between CNC-age and stone-age...
I think it was unfortunate that the competition was started without a firmer set of specifications.
Still, from those loose specs it did not appear that the design was to be optimised for mass production. Computer-designs resulting in dxf-files for a plotter or CNC-cutter is fine if one wants to sell kits. For one-offs, I felt it was better to take one step back in technology. My designs were meant to let someone follow a few sheets of building plans without needing computer tools or skills.
Still, my designs like Halibut and Medium Boy, are actually sitting in dxf-format in my computer. If I had a CNC-cutter shop available nearby, I could easily show up there with a memory stick in hand and have most of the planks cut out for me. That would ensure accuracy and save heaps of time. (..I guess I would just have the planks cut out from thin, cheap plywood and use them as patterns so I could build another few dinghies on demand...).
I have just borrowed a biography about E.G. van de Stadt. He produced a great number of plywood designs in the forties and well into the sixties, both for professional building and for homebuilders. Even kits. However, no method beats plastic when it comes to stamping out dinghies, these days. Plywood is, with few exceptions for the home-builders.
Arne