| Outboard motors on boats where developed as a | | | | provides power; the transmission leg stays in the |
| self-contained unit with engine systems and a | | | | water. When boats are about to enter shallow water |
| propeller. It is mounted at the stern or rear of the | | | | or be taken off the water, the outboard motor |
| boat and is the most common way to propel small | | | | should be tipped forward over the mount so that |
| boats. It provides steering controls and is designed to | | | | you can elevate the propeller and take the |
| pivot and control the orientation of the | | | | transmission shaft out of water. |
| propeller.Acting as a rudder rather the propeller | | | | |