The Coast Guard's 225 foot Seagoing Buoy Tender (WLB) fleet was acquired to replace the WWII-era 180 foot Coastal Buoy Tenders. The new Seagoing Buoy Tenders represent the latest in shipbuilding, propulsion, and ship control technology.

The 225 foot WLBs are equipped with a single controllable pitch propeller and thrusters on the bow and stern which give the cutter the maneuverability it needs to tend buoys offshore and in restricted waters. A sophisticated machinery plant control and monitoring system and an electronic chart display and information system enable the 225 foot cutters to reduce the watch standing complement compared to the 180 foot cutters. A dynamic positioning system can hold the vessel within a 10 meter circle using the global positioning system, allowing the crew to service and position floating aids to navigation more efficiently than before in winds up to 30 knots and seas up to eight feet.


Design Features
Complement 50 (eight Officers, 42 Enlisted) 
Displacement 2,000 tons at design draft
Length 225 feet
Beam 46 feet
Draft 13 feet
Speed 15 knots at full load displacement
Range 6,000 miles at 12 knots



Performance Characteristics
Main Propulsion Two 3,100hp Caterpillar diesel engines
Fixed pitch bow and stern thruster (450hp & 550hp) 
Electrical Power Two 450kW ship's service diesel generators
One 285kW emergency diesel generator
Deck Equipment 24' cutter boat
24' aluminum workboat
Buoy Crane 40'-60' extendable length boom
40,000lb capacity main hoist
10,000lb capacity auxiliary hoist
Ice Operations 14" fresh water ice at three knots continuous speed
36" packed fresh water ice by ramming