Phoenix Vortex Drive™, marine in-water transmission, unique two-stage design, all speed control, intelligent propulsion system, low-cost Tesla boundary layer turbines, proprietary nozzle shaping technology, optimum water flow, overcomes upper limit barrier of conventional water jet drives, excellent low end acceleration, computer controlled pump loading & fluid flow, no exposed propeller, high efficiency, fuel savings, high performance, higher maneuverability, high reliability, impervious to cavitation, PNGinc