1959: The Banks-Maxwell Propeller Company features a Gutzman air-sled for it's 1959 catalog. This photo's caption indicates, "This snowplane is made by Trail-A-Sled Mfg. Co., Crosby, Minnesota. They are covered with sheet aluminum and are supplied with engines of 65 to 100 H.P." Banks-Maxwell photo. See Terms of use. Link to Home.