Mini airboat built off of some plans from lakebuggy airboats. this boat has a 13hp honda gx390 engine and a 42×18 propeller from rnd propellers. the hull. Enjoy these free project plans from vintage and classic sources. boats, mini bikes, farm projects, and much more.. Warp drive airboat propellers on sale, warp drive carbon fiber, airboat props, adjustable pitch, hovercraft, skydiving simulator, air drive prop, mini airboat prop.