Marine Propulsion Technologies Inc. ( MPT) has been involved in marine science since 2006 and its founders Schultz and Smith since 1960 and 2005 respectfully. The Thrustor with its improved propeller output and sea keeping serves as a model for increased output and sea keeping for inboard vessels small work ships to blue water ships. MPT's Shultz nozzle will allow the refitting of all traditional drives, inclined shaft, rudder drives and Z drives.