National Security Cutter
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USCGC Bertholf, the first National Security Cutter
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| Class overview | |
|---|---|
| Name: | Legend-class National Security Cutter |
| Builders: | Ingalls Shipbuilding |
| Preceded by: | Hamilton class |
| Cost: | $684m(average), $735m(FY13 ship) |
| In service: | 2008– |
| Building: | 3 |
| Planned: | 9 |
| Completed: | 6 |
| Active: | 6 |
| General characteristics | |
| Type: | United States Coast Guard Cutter |
| Displacement: | 4,500 long tons (4,600 t) |
| Length: | 418 feet (127 m) |
| Beam: | 54 feet (16 m) |
| Draft: | 22.5 feet (6.9 m) |
| Propulsion: |
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| Speed: | Over 28 knots (52 km/h; 32 mph) |
| Range: | 12,000 nautical miles (22,000 km; 14,000 mi) |
| Complement: | 113 (14 officers + 99 enlisted) and can carry up to 148 depending on mission |
| Sensors and processing systems: |
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| Electronic warfare & decoys: |
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| Armament: |
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| Armor: | Ballistic protection for main gun |
| Aircraft carried: | 2 x MH-65C Dolphin MCH, or 4 x VUAV or 1 x MH-65C Dolphin MCH and 2 x VUAV |
| Aviation facilities: | 50-by-80-foot (15 m × 24 m) flight deck, hangar for all aircraft |
The United States Coast Guard's National Security Cutter (NSC), also known as the Legend-class cutter and Maritime Security Cutter, Large, is the largest of several new cutter designs developed as part of the Integrated Deepwater System Program.
The Legend-class cutters are the second longest of all U.S. Coast Guard cutters, behind the research icebreaker Healy, and will replace the twelve Hamilton-class cutters in service. These cutters are envisioned by the Coast Guard as being able to undertake the entire range of the high endurance cutter roles with additional upgrades to make it more of an asset to the Department of Defense during declared national emergency contingencies. These vessels can be used for intercepting suspect vessels, or for rescuing swimmers, fishery protection, maritime homeland security missions, counterterrorism, coastal patrol missions, defense operations and other military/naval operations, and can assist in mine warfare. To facilitate intercept missions, the Legend class can carry and launch both the Short Range Prosecutor and the Long Range Interceptor rigid hull inflatable boats.
The cutter has a rear-launching ramp, capable of launching and retrieving the two aft stored rigid-hulled inflatable boats while underway. The NSC is built to about 90% military standards. The NSC is designed to US Navy Damage Stability Criteria and to Level 1 Survivability standards. The NSC has degaussing capability.
Legend-class cutters have increased data link bandwidth. The EADS North America TRS-3D radar system provides three-dimensional air and surface search functions and is used in the LCS program as well as the German Korvette 130 program. The cutters are also equipped with the AN/SLQ-32 Electronic Warfare (EW) system used in the DDG-51. The Legend class is equipped with the same 220 rpm Bofors 57 mm gun as mounted on the USN's Littoral combat ships. The Missile Defense duties are handled by the MK 36 SRBOC decoy systems also used on the FFG-7 and CG-47 programs and the CIWS. The combination of the Mk 110 and the Phalanx give the cutter's Anti-Surface capability and limited Air-Defense capability. The sonar is reported as having mine and underwater swimmer location ability. The cutters have space, weight, and power reserved for additional weapons and systems which includes mine warfare systems. The NSC has a NBC detection and defense system to repel chemical, biological or radiological attacks and has wash-down systems.
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