Canoe plans, patterns and canoe building dvds. we hope you will find our canoe plans diverse and in many cases unique. our canoe plans have been sent out thousands of times all over the world and successfully built by people just like you.. Also available: cockpit plans ideally suited for the sport c. the dillon sport c tunnelboat was designed and built for racing in the apba sport c class. sport c is a national class which allows for several boat and motor options, but the typical rig is a tunnelboat approximately twelve feet long, powered by a two-cylinder, 40hp nissan or tohatsu outboard. more about sport c r. About the plans: i am not a naval architect, or an engineer, or even a draftsman. i am a forester by education, a furniture-maker by profession, and a boat-builder, sailor and racer by inclination. i have built a number of boats over the last 35 years or so: from the 8-foot hydroplane i built when i was fourteen, to a 21-foot sailboat built in the 1990s, and a bunch of tunnel and v-bottom.