Airboat: airboat, a mixture of airplane and boat with the resultant thrills of both. of course it is a boat powered by an airplane type propellor with large above the water rudders.. Our passengers love having the airboat all to themselves, and at the same price (or less!) than non-private airboat rides. private rides available for groups of 4 or more, groups of 2 or 3 will share the boat with others.. Plywood boat plans. if you are looking for a way to build an inexpensive boat you should definitely consider plywood boat plans. using plywood is one of the best ways in which to build a fishing boat at a very affordable price..