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The new DC-3 Trimaran, designed by John Marples, has just been announced as the winner of WoodenBoat Magazine’s “Pro-Boat Design Challenge III.” It’s a 27-foot, trailerable, swing-wing wooden tri with offshore capabilities.

Some of its other features include:

— Central cockpit (for safety in heavy weather)
— Hulls built with the Constant Camber system (for faster construction using less wood)
— Ability to sleep at least 2 persons (in relative comfort)
— 2 separate (fore & aft) cabin areas (for reasons John discusses in the audio below)

There were 49 entrants from a half dozen countries that participated in this design challenge. And to get a fuller picture of the specific parameters that defined this year’s contest — the creation of a “Fast Expedition Sailboat” — I asked John if he’d participate in a short recorded call so I could ask him some questions.

So click on the audio bar below to listen, and John’s drawings can be viewed (in pdf) underneath the jpeg images below…

DC-3 Trimaran features fore and aft cabin

John Marples DC-3 Trimaran Model

Central cockpit and swing wing akas are part of the Marples DC-3 trimaran model

DC-3 trimaran requirements were for an Expedition sailboat

DC-3 Trimaran Sail Plan

DC-3 Trimaran Interior

Click here to download the DC-3 Trimaran sail plan drawings in pdf

Click here to download the DC-3 Trimaran interior drawings in pdf