Becker Supplies Rudders For US’ New Training Ships

Hamburg-based Becker Marine Systems said it has been awarded a contract to supply its Becker Flap Rudder Twisted and Becker Intelligent Monitoring System (BIMS) for the first two National Security Multi-Mission Vessels (NSMVs) to be constructed at Philly Shipyard in the U.S.

The NSMVs will become part of the U.S. National Defense Reserve Fleet and are designed as training vessels for the U.S. maritime academies with training space for up to 600 cadets. In addition to being a training platform, the NSMVs are able to support disaster relief for up to 1,000 people and other critical national needs.

Becker noted it had been involved with the project at an early stage, providing engineering support to the vessel designers of Herbert Engineering with a custom-made rudder system.

The high-efficiency flap rudder with twisted leading edge is designed for excellent maneuverability at all speeds, whether at bollard conditions in the harbor or while underway, and it will help to allow the vessel to dock without tug assist, the manufacturer said, adding the flap rudder is equipped with a linkage system designed to provide less wear and tear.

In addition to the rudders, Becker will supply its BIMS to support cadet training, safe maneuvering and efficient operation. The digital BIMS system measures rudder forces, interfaces them with the ship’s navigation systems and displays the rudder lift on the bridge. The BIMS’ visual display of rudder forces on a screen of rudder forces allows the crew to utilize the optimal rudder performance for safe maneuvering under all conditions. The direct rudder force feedback by BIMS can support, for example, a ship’s autopilot systems to sail with fewer rudder movements, resulting in the benefit of energy-saving, emission reduction and less wear and tear for the maneuvering system.

The installation of the BIMS on the NSMV also offers a benefit for cadet training. By visualizing the direct influence on bending and torsion on the rudder at specific steering angles, the system can indicate poor rudder response or even rudder stall. This enables the cadets to learn and to take appropriate countermeasures in advance to achieve an optimum rudder performance.

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