What are the different versions of the design and do they have differing speed potential?
The boats were first sold with quarter berths under both sides of the cockpit. After several years at about hull #445, JBoats changed the galley design and eliminated the port side quarter berth, replacing it with a sail locker accessible from the cockpit. Topsides, the original configuration was a cockpit without coamings and with a full bridgedeck. In the early 80’s this design was replaced by one with coamings and a longer footwell, replacing the bridgedeck. These two changes were not made at the same time, so you may find a boat with the early deck but the later cabin arrangement. As far as the speed potential of the boats, the hull number does not seem to matter. Both early and late designs have been North American Champions. In general, the later designs came with more creature comforts like propane stoves and pressure water. The most important element of boat speed is the condition of the bottom.
