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Black Divider

WLB 201 through 216; U.S. Coast Guard Seagoing Buoy Tenders


The WLB, is a 225 foot steel hulled, self-propelled vessel designed by MMC to meet rigid Military and American Bureau of Shipping standards. The vessels are designed to maintain floating aids to navigation (buoys) in an open ocean environment. To achieve the minimum manning level desired by the U. S. Coast Guard, MMC incorporated an advanced Main Propulsion Control & Monitoring System (MPCMS) to provide automated control of the propulsion plant, controllable pitch propeller, bow and stern thrusters, ships electrical generating plant, and all vital auxiliaries. The MPCMS working in concert with an integrated bridge and dynamic positioning systems provide the cutter with both full autopilot and station keeping functions.

All of these systems work together though a fiber-optic LAN. The SAFENET standard LAN was designed and fabricated by MMC. By incorporating remotely and automatically controlled equipment into it’s design of the buoy handling deck, MMC further reduced the number of personnel required to conduct buoy operations and at the same time improved the safety of the operations. This is particularly true of the constant in haul chain retrieval system designed by MMC.

In addition to aids to navigation work, the cutters are designed to perform secondary functions such as search and rescue, spilled oil recovery, and light icebreaking. The vessel is self-sufficient with respect to shipboard systems and has been designed by MMC to berth, mess, and support a 40-person crew. MMC delivered (5) of these cutters under a contract awarded in 1993 and was subsequently awarded a contract in 1998 to construct an additional (11) cutters.

Click here for a larger printable version of the Vessel Data Sheet