How to build a small sail boat. these plans are for a small sail boat called the biloxi dinghy. former builders claim it’s a great design.s. from the plans:. Here’s a handy boat that can be rowed, sailed, and powered with up to three large adults, and it "nests" to take up less space. the passagemaker dinghy is easy to. The international laser class sailboat, also called laser standard and the laser one is a popular one-design class of small sailing dinghy. according to the laser.