Outboard motors are used most commonly for boats and are developed as a self-contained unit with an engine. They are designed to be mounted at the rear of the boat and are most common method for propelling a small watercraft.
History of Outboard Motors
Outboard motors on boats where developed as a self-contained unit with engine systems and a propeller. It is mounted at the stern or rear of the boat and is the most common way to propel small boats.