Sentinel-class

Summary

Origin country 🇺🇸 United States
Category Patrol vessel
SubtypeCutter
ManufacturerBollinger Shipyards
Year commissioned2012
Approx. unit cost$65 million
Units 55 MSRV Sentinel
56 MSRV Guardian
57 MSRV Protector
58 MSRV Bastion

Operators

🇸🇬 Singapore • 🇺🇸 United States

Description

The Sentinel-class cutter, designated the Fast Response Cutter (FRC), was developed as part of the United States Coast Guard’s Deepwater program to replace the 1980s-era Island-class patrol boats. In 2007, the Coast Guard replaced a flawed initial design with a modified version of the Damen Stan 4708 patrol vessel from the Netherlands-based Damen Group. Bollinger Shipyards of Louisiana was contracted to build the vessels using this "off-the-shelf" technology. While the initial procurement plan projected a maximum of 34 cutters, current authorizations have expanded the class to 77 vessels.

The design utilizes a steel hull and includes a stern launching ramp for a jet-drive cutter boat. It incorporates underwater fins to mitigate rolling and pitching in heavy seas. The class meets Naval Sea Systems Command standards for two-compartment damaged stability and includes a reduced radar cross-section through specific hull shaping. Propulsion is provided by diesel engines and a bow thruster. Internal systems include a C4ISR suite, surface and air search radars, and an automated ship management system. A handheld device on the bridge allows for remote control of functions such as rudder movement and docking. Armament consists of a remote-operated machine gun system and multiple crew-served heavy machine guns. Accommodations are designed for mixed-gender crews and include a desalination unit and satellite television.

The class entered service in 2012 with the commissioning of the lead ship, USCGC Bernard C. Webber. Individual vessels are named after enlisted members of the Coast Guard and its precursor services. Cutters are homeported throughout the United States, including cohorts in Florida, Puerto Rico, California, Hawaii, and Alaska. Six vessels operate with Patrol Forces Southwest Asia (PATFORSWA) in Bahrain, representing the Coast Guard’s largest unit outside the United States.

Operational roles include ports and coastal security, maritime law enforcement, search and rescue, and defense operations. Service history includes the interdiction of refugees and narcotics; in 2017, the class conducted a seizure of four tons of cocaine in the Atlantic Ocean. Cutters have also participated in major search operations and intercepted weaponry in the Red Sea. Despite design range specifications, class members have performed long-distance deployments from Hawaii to the Marshall Islands and American Samoa.

Technical specifications

Displacement359 tons
Range 2500 km
Endurance5
Crew24 members
Width8.11 m (26.6 ft)
Length46.8 m (153.5 ft)
Propulsion

2 × 4,300 kW (5,800 shp) MTU diesel engines, 1 × 75 kW (101 shp) bow thruster

Armament
  • 1 × Mk 38 Mod 2 25 mm machine gun system
  • 4 × crew-served Browning M2 machine guns
Maximum speed28 knots

Frequently Asked Questions

What type of ship is the Sentinel-class?
The Sentinel-class is a patrol vessel (Cutter) built by United States.
What is the displacement of the Sentinel-class?
The Sentinel-class has a displacement of 359 tons.
What is the maximum speed of the Sentinel-class?
The Sentinel-class has a maximum speed of 28 knots (51 km/h).
What is the range of the Sentinel-class?
The Sentinel-class has a range of 2,500 km (1,349 nautical miles).
How many crew members serve on the Sentinel-class?
The Sentinel-class has a crew complement of 24 personnel.
How many Sentinel-class ships have been built?
Approximately 61 vessels of the Sentinel-class have been built.
Which countries operate the Sentinel-class?
The Sentinel-class is operated by 2 countries, including Singapore and United States.
How much does a Sentinel-class cost?
The Sentinel-class has an estimated unit cost of approximately $65 million.
Wikipedia and other open sources. Last updated on 18 January 2026. Suggest a change