ancient kayaker: Kempenfelt 12.5
Easily rowed sailboat hull, solo to crew of 3. Based on downsized (78%) Haven 12.5 with flat floor and daggerboard. Designed to look like the Haven or Herreshoff 12.5 classics when on the water, but light enough for one person to to car-top.
This one will probably not get built but it was an interesting design exercise and was intended for the transverse planking build method described for the Sunnyside Cruiser canoe.