More c27 versions
Actually 3 keels. The 3.5ft shoal, the 4ft fin, and the wing that was offered on the later models. The hull remained unchanged throughout the production run. Three basic interiors. Traditional (with the table that folds up against the bulkhead), the dinnette with a built in table and the galley on port side amidship, and the dinnette with the galley on the port aft side of the cabin. Although small changes occurred over the years, Catalina re-designed the deck structure in mid 1985. This included wider cockpit coamings, different lazzerette hatch, narrowed the companionway opening, moved the front hatch from the cabin top to slope of the cabin, and restyled the anchor locker (some of the earlier models did not have an anchor locker). Tall rigs have a bowsprit and standard rigs do not. Probably more, but that is all I can think of.