Thanks Chris. I do know the difference between POB and POF I just referred to the ribs of the frame as "frames" which definitely is a correct term. I just never heard of the term "formers" before. I am looking for a POF kit and the Mantua Model UK gives this description;
"Astrolabe 733 Scale 1:50 Length 1100mm. This is a fine reproduction of a typical French sloop. A plank on frame construction the kit contains: Building plans with general details, English instructions, lost wax brass castings walnut or lime wood planking, wooden masts and spars, brass and walnut fittings, laser etched details,rigging cord, sail canvas and silk flag. All sheet plywood sections are laser cut for accuracy."
Probably not going to go with this kit but this raises a question in my mind. If POB kits have the bulkheads laser cut from plywood does POF kits that supply precut frames or ribs also cut them out of plywood or out of solid wood or can it be either and something I have to look for before buying?