Abstract: A propulsion system for amphibious track driven vehicles. The propulsion system includes a driven track having for example paddles extending therefrom and supported by a suspension framework. The track is driven by drive cogs of for example plastic or metal. A manifold partially encloses the track and includes a water collection chamber positioned at the forward end of the track for collecting water from the top portion of the track. One or more exhaust tubes are coupled to the collection chamber and extend from the chamber toward the back end of the track. A propeller is positioned in each of the exhaust tubes to boost the thrust of the water through the tubes and out the back end of the track. Directional control is enhanced by varying the power to each of the propellers.