Motor boats

Mini Catamaran II

March 22, 2020

This was me tweeting the original Mini Catamaran. I decided to have the motor in the rear figuring the prop wash would pass by the ends of the pontoons hence giving me more responsive steering. But instead of facing forward, which adds complexity to the steering and throttle, I decided to face sideways similar to…

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Coro Mini Catamaran

February 12, 2020

  I wanted to see what a 4ft by 8ft sheet of fluted plastic would look like folded origami style into a water tight pontoon for a Catamaran boat. After making a paper model I calculated the sq. ft. interior space to determine the waterline loaded with 200 pounds. I wasn’t too pleased with the…

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Coro Speed Boat II

January 9, 2020

This was the first of my gas powered fluted plastic boats. I called it the Speed Boat. PVC was used for the Gunwales, but this proved to be a poor choice to secure an upper decking. Also the light weight 1.2 HP Gamefisher motor was used. The fluted plastic was folded for the transom, creating…

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Coro box boat

April 11, 2019

For PDF plans, click here! The Coro box boat was a design that created more buoyancy than my first ‘V’ hull motor boat, the Coro Speed boat. At first the steering mimicked the Speed boat but then it went thru an evolution. On the next version a front storage area was included. A ‘V’ bar…

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Coro speed boat

April 11, 2019

For PDF plans, click here! The Speed boat is basically a 4×8 ft sheet of 6mm Coroplast, better known as fluted plastic. The boat folds are similar to a Chinese to-go food box except the fluids are kept outside instead of inside. Because of these folds, all that’s needed to keep the structure together are…

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