Designing, building, and flying rubber-powered, multiengine airplanes

Written by Dennis Norman Free Flight Scale Column As seen in the December 2018 issue of Model Aviation. Multiengine subjects for Free Flight (FF) Scale have long fascinated me. In 1984, I decided to build a four-engine, rubber-powered FF Scale model. The English Lancaster looked the most promising. With an actual wingspan of 102 feet, 1:24 scale (1/2 inch equals 1 foot) would yield a model with a 51-inch wingspan. Widely spaced nacelles would allow for propellers large enough for rubber power, and the model would be nearly the desired size. I knew that the model would have to…