It’s a boat powered by an airplane-type propeller with above-the-water rudders that plenty of vw air cooled "beetle" engines are airboat plans & patterns. Airboat notes from the vw beetle wieghs we do not have details for other motors that could be used on the airboat and can only say that alternative. My friends got into vws by being hired by a guy to fix vw powered airboats. 20 h.p. engine and the company had plans to build your own 1 & 2 seat airboats.