Smaller and it's probably considered a "trolling motor" or something like that (not being a power boater, I wouldn't be an expert on that).
I'm not a power boater but i do own a jon boat and a 3.5 engine
according to the new oracle (google): "A trolling motor is a self-contained unit that includes an electric motor, propeller and controls, and is affixed to an angler's boat, either at the bow or stern. A gasoline-powered outboard used in trolling, if it is not the vessel's primary source of propulsion, may also be referred to as a trolling motor."
