I raced a jet 14 as a teenager a long, long, time ago. Then they were molded plywood built by Sidnons and Sindle in New Jersey. It was a period International 14 hull with a Snipe rig. It had a steel centerboard. They were an active two person racing class. They would plane and had a rig that teenagers could handle. The big jib for the time made them speedy. The lines were the same as a Thistle but in a smaller boat. At the time builders could build different freeboards. So higher sided boats were in rougher waters while lower boats were for calmer waters and all out racers. A big improvement was going from a wood mast to aluminum. Tied up in a slip if the centerboard wasn't down the boat could roll over if there was a lot of wind and was wave action. I great liely boat to sail without being hard to handle, but not a family daysailer.