Stratch built rc airboat from dollar tree foam. foamboard air boat on the snow. by eagle4 airboat plans .. Had lots of foam begging to be used, so i thought "airboat, why not?" i’m very new to rc boating as a whole, but i’m very experienced when it comes to rc cars/trucks and fixing rc planes.. "optimization of an airboat design", or oad, was a design project. benchmarking was conducted by the team members of oad on figure 44: bow foam.