This directory includes all of the plans that are specifically designed for stitch and glue construction. the rc model x-1 is an inexpensive way to try out this.  8′ puddle duck racer one design racing sailboat based on bolger brick. developmental class, defined hull, unlimited sail rig and underwater fins.. The cad boat design software we are going to discuss here is ideal for the hobbyist. there are two reasons for this. first, it’s free, and second, it provides you.