Are you referring to the Athearn plow, or the now out of production model made by Walthers? The Athearn one has been around for a really long time, originally had the rotary blade turning by means of a rubber band looped around the truck axle. The RTR version could be motor powered these days, I've never paid any attention to them. The Walthers model had a motor driven blade, kept running at a constant speed with use of a constant lightin circuit. The motor was connected to the blade with a rubber band "drive belt". It broke on mine and I've never had the interest to repair it.