John Marples 26' (CC-26) -- Design 103
Description
The John Marples Design #103, known as the Constant Camber 26 (CC26), is a 26-foot folding trimaran sloop introduced in the 1970s as a pioneering wood/epoxy construction project emphasizing lightweight efficiency and trailerability for coastal cruising and daysailing. Featuring innovative constant camber curved plywood panels for streamlined hulls—developed in collaboration with Jim Brown—this design achieves a dry weight of around 600 pounds, a folding beam that reduces from 18 feet to under 8.5 feet for easy highway trailering, and a spacious central cockpit with berths for two adults plus two children, offering up to four-person capacity for outings. Powered by a fractional rig with approximately 200 square feet of sail area, the CC26 excels at 8–10 knot cruising speeds with bursts to 15 knots, delivering responsive handling and stability ideal for weekend escapes or family adventures on protected waters, while its minimal framing and bolt-secured aka hinges simplify amateur builds requiring 800–1,200 hours.
The standard boat dimensions
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Blueprints
Disclaimer. Boats are not all the same -- even when produced in the same factory of the same model. Sailrite does its best to publish accurate dimensions, but we often find it worthwhile to have our customers measure their boats carefully before we produce kits for them. You should take the same precautions, especially when the data is not from Sailrite. The information on this site is not guaranteed to be accurate. Sailrite offers this content as a service to our community, but takes no responsibility for the reliability of the data provided.