How to build an airboat. find a plan. basic plans to build an airboat are available from outfits like lake buggy airboats website. here you can choose from single seat and two seat plans. obtain an airboat engine and propeller. some folks have used lawnmower engines and some have used turbine engines to power their airboats.. Airboat. to further simplify building, fastening kits containing all the screws and nails required to build the boat in solid silicon-bronze. fiberglass covering kits, contain all resin and cloth to cover the outside of the hull, plus brushes, squeegee, and rollers.. Do you want to build your own airboat? order the plans! an information package is a great gift to yourself, or for a friend. when building your own airboat, these plans will cut your freight costs significantly by building in your own country or region..