DMC to build high-speed rudders for German Navy frigates

DMC has developed an Asymmetric Rudder Technology design using the leading edge of each rudder to direct turbulent water flow from the propellers in front of the rudders along the rudder surface more smoothly. This technology is expected to reduce cavitation, increase rudder efficiency and reduce drag of each vessels’ twin counter-rotating propellers.

A “silent bulb” is also incorporated in the rudder wake of the propeller axis and has performed well in tank tests. The bulb improves the water flow that comes from the propeller and increases thrust at higher loads.

DMC sales and marketing director Wim Knoester said the rudders are required to be built with extreme shock resistant specifications and made from high-strength steel.

“We are happy to contribute to these state-of-the-art vessels,” he said.

“With these twin-screw, high-speed vessels, we can demonstrate the quality, efficiency, and durability of our rudders. Being part of this high-profile Damen project allows us to show our capacity of delivering the highest class of ship systems.”

Robert Dougherty

Robert is a senior journalist who has previously worked for Seven West Media in Western Australia, as well as Fairfax Media and Australian Community Media in New South Wales. He has produced national headlines, photography and videography of emergency services, business, community, defence and government news across Australia. Robert graduated with a Bachelor of Arts, Majoring in Public Relations and Journalism at Curtin University, attended student exchange program with Fudan University and holds Tier 1 General Advice certification for Kaplan Professional. Reach out via email at This email address is being protected from spambots. You need JavaScript enabled to view it. or via LinkedIn.