Rc airplanes:scale plans,with details by the designer.how to design your own.balance point. mrrcsound systems.jet engines explained. i, personally love all types of scale rc airplanes and if. Design index. click on the hypertext letters below to go directly to that portion of the alphabetical listing.. Boat plans from "science and mechanics" and "boat builder handbook." includes plans for hydroplanes, sailboats, inboards, runabouts, canoes, and kayaks..