This beautiful 4-channel model has a 62" wing span and was powered by a K & B .45. Bill Neukom is the designer and he said he had the help of the famous Chuck Hollinger in developing the model.
(I have added some pictures of Hollinger's classic UC FLEET TRAINER model from the 1950s. I sell those plans & the Air Trails construction article separately. One item is the same on both of the plans---Chuck's simplified way of building a dummy radial engine for the nose.)