The UltraJet range of marine waterjet propulsion and control systems (aka water jet propulsion, water-jet propulsion, hydrojet propulsion, & jet pump) is designed, manufactured, and supported by Ultra Dynamics. Formerly Dowty waterjets, UltraJet propulsion units are well suited to the performance and durability requirements of military, paramilitary, commercial, passenger, and pleasure craft in real-world conditions. Today’s UltraJet product range benefits from 50 years of experience with waterjet propulsion. Ultra Dynamics is ISO-9001 certified.
The UltraJet model range, from the UltraJet 251 to the UltraJet 575, can absorb from 100 to 1700 horsepower (75 to 1268 kW) per drive in single, twin, and multiple-drive configurations.