Peque Peque Motor
Used on Amazon River

 

16 Horse Briggs and Stratton Motor
Goes about 4 hours on one tank of gas.
About a two meter shaft extends past the rear of the boat.
The turn the boat by turn the motor on a pivot axis. When the propeller is full of weeds the tilt the motor out of the water. Here the prop is completely turned around and siting inside the boat.