Intro: building a "pintail" duckboat pt 1 *****please note: the woodworking part of this project is complete. pt. 2 will be on prepping and painting the boat.. Free boat plans, boat plan resources, and free cad boat drawing file downloads. Boat builder’s handbook and iow the water. pintail makes ideal duck boat. s a duck boat, pintail is small and able, leakpròof, light enough in weight (60 lbs.).