Omnithruster Continues to Lead The Way

Thursday, September 21, 2000
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. Navy to begin the retrofit of the system to the Omnithruster JT1700-1AM’s installed on the Mine Countermeasure Class (MCM) ships. The JT575AM is manufactured out of centrifugally cast Nickel-Aluminum Bronze and is completely non-magnetic. Custom hydraulic cylinders and stainless steel mechanical components are also utilized to minimize the magnetic content of the overall package, critical for use on a minesweeper.

The thruster design has been evaluated by DDAM (Dynamic Design Analysis Method) to insure that it meets the shock requirements of the U.S. Navy (NAVSEA 0908-LP-000-3010) and the Japanese Defense Agency. Figure 6-11 depicts the stress concentration of the steering valve and nozzles as the unit is subjected to a shock level specified in Design Data Sheet 072-01, “Shock Design Values” (U.S. Navy Confidential). The flanged connections are strengthened by using high strength fasteners. Metric fasteners were utilized throughout the design for ease of integration aboard the Japanese ship.

It is obvious that the JT575AM is a very specialized unit, but it goes to show just how adaptable the JT Series can be to a specific installation. Omnithruster’s ability to offer a customizable commercial product that has been fully tested in the military environment puts it in a unique position amongst its competitors. The JT Series, and its smaller sibling the HT Series, continue to “lead the way” in waterjet thruster technology.

Maritime Today


The Maritime Industry's original and most viewed E-News Service

Maritime Reporter June 2016 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Workboats

Alabama Pilots Order High-speed Launch from Gladding-Hearn

The Alabama Pilot, Inc., in Mobile, Ala., has ordered a Chesapeake Class pilot boat from Gladding-Hearn Shipbuilding, Duclos Corporation. Delivery of the new 53-footer is scheduled for mid-2017.

SeaPro FourStroke Making Gains in the Commercial Market

Mercury Marine’s family of SeaPro FourStroke outboard engines is suited for high-hour applications and harsh environments, according to the manufacturer, who said

Ulstein Delivers for BS Offshore

The first of two service operation vessels (SOV) ordered in 2015 by Bernhard Schulte Offshore (BS Offshore) and its client Siemens from Ulstein Verft in is now completed,

 
 
Maritime Contracts Maritime Security Naval Architecture Navigation Offshore Oil Pipelines Salvage Ship Electronics Shipbuilding / Vessel Construction Sonar
rss | archive | history | articles | privacy | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.0652 sec (15 req/sec)