The recent award from the Japanese Defense Agency for its two newest Coastal Mine Sweepers secures Omnithruster’s position as one of the leading designers and manufacturers of advanced, low noise, shock hardened thrusters. The Omnithruster JT575AM, designed from the ground up for the Japanese Defense Agency, incorporates the patented Omniphaser noise masking system. This device uses some of the thruster’s own output to reintroduce a water/air mixture into the thruster inlet. The air bubbles compress and expand while traveling through the impeller absorbing incipient cavitation energy that normally emanates a noise. This reduction in noise is dramatic; enough in fact, for the U.S.