Legend-class cutter

	USCGC Bertholf, the first National Security Cutter
Class overview
Builders	Ingalls Shipbuilding
Preceded by	Hamilton class
Cost	$670m(average), $735m(FY13 ship)
In commission	2008–present
Planned	11 (Option for 12th)
Building	1
Completed	10
Active	10
General characteristics
Type	United States Coast Guard Cutter / Large patrol vessel
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)
Installed power	3 × Caterpillar 3512B diesel generators
Propulsion	Combined diesel and gas; 2 × 7,400 kW (9,900 hp) MTU 20V 1163 diesels; 1 × 22 MW (30,000 hp) GE LM2500 gas turbine engine;
Speed	Over 28 knots (52 km/h; 32 mph)
Range	12,000 nautical miles (22,000 km; 14,000 mi)
Endurance	60–90-day cycles
Complement	113 (14 officers + 99 enlisted) and can carry up to 148 depending on mission
Sensors and ; processing systems	EADS 3D TRS-16 AN/SPS-75 Air Search Radar; SPQ-9B Fire Control Radar; AN/SPS-79 Surface Search Radar; AN/SLQ-32B(V)2; AN/UPX-29A IFF; AN/URN-25 TACAN; Mk 46 Mod 1 Optical Sighting System (WMSL 750 - 753); Mk 20 Mod 0 Electro-Optical Sighting System (WMSL 754 - 760); Furuno X and S-band radars; Sea Commander Combat System; Link-11 and Link-16 tactical data links;
Electronic warfare ; & decoys	AN/SLQ-32B(V)2 Electronic Warfare System; 2 × SRBOC/ 2 × Nulka countermeasures chaff/rapid decoy launchers;
Armament	1 × Mk 110 57mm gun a variant of the Bofors 57 mm gun and Gunfire Control System; 1 × 20 mm Block 1B Baseline 2 Phalanx Close-In Weapons System; 4 × crew-served .50 caliber (12.7 mm) Browning M2 machine guns; 2 × crew-served M240B 7.62 mm machine guns; Designed for but not with additional weapons and sensors;
Armor	Ballistic protection for main gun
Aircraft carried	1 × MH-65C Dolphin MCH and 2 × sUAS
Aviation facilities	50-by-80-foot (15 m × 24 m) flight deck, hangar for all aircraft

The Legend-class cutter, also known as the National Security Cutter (NSC) and Maritime Security Cutter, Large, is the largest active patrol cutter class of the United States Coast Guard, with the size of a frigate. Entering into service in 2008, the Legend class is the largest of several new cutter designs developed as part of the Integrated Deepwater System Program.^[12]

^ O'Rourke, Ronald (February 14, 2014). "Coast Guard Cutter Procurement: Background and Issues for Congress" (PDF). Congressional Research Service. pp. 5–7. Archived (PDF) from the original on March 28, 2014. Retrieved February 26, 2014.
^ "USCGC Calhoun, NSC#10, Christened 4 June, 2022". June 5, 2022.
^ ^a ^b ^c "Report to Congress on Coast Guard Cutter Procurement". usni.org. September 2, 2022. Archived from the original on September 6, 2022. Retrieved October 20, 2022.
^ ^a ^b "hii-awarded-94m-long-lead-contract-10th-national-security-cutter". usni.org. March 30, 2018. Archived from the original on March 31, 2018. Retrieved March 31, 2018.
^ Cite error: The named reference NSC11 was invoked but never defined (see the help page).
^ "National Security Cutter". United States Coast Guard. Retrieved October 20, 2022.
^ "MTU Powers Deepwater National Security Cutter". The world of Dieselman - MTU. January 30, 2008. Archived from the original on March 10, 2012. Retrieved March 30, 2012.
^ Coast Guard Selects Small UAS For NSC (PDF), USCG Deputy Commandant for Mission Support, retrieved December 16, 2017
^ "National Security Cutter: Program Profile". USCG.mil. US Coast Guard. Archived from the original on February 13, 2017. Retrieved February 12, 2017.
^ "Cutter Bertholf's Indo-Pac Deployment Highlighted Coast Guard's National Security Role". news.usni.org. July 24, 2019. Retrieved January 19, 2020.
^ "National Security Cutters". Defensemedianetwork. Archived from the original on March 4, 2016. Retrieved May 22, 2017. With much more room on the national security cutter it becomes a considerably more capable platform, because if needed, more sensors and weapons can be added.
^ "National Security Cutter (NSC)". Integrated Deepwater System Program. Archived from the original on August 24, 2007. Retrieved September 1, 2007.

[CRS20121031-1] O'Rourke, Ronald (February 14, 2014). "Coast Guard Cutter Procurement: Background and Issues for Congress" (PDF). Congressional Research Service. pp. 5–7. Archived (PDF) from the original on March 28, 2014. Retrieved February 26, 2014.

[calhoun_christening-2] "USCGC Calhoun, NSC#10, Christened 4 June, 2022". June 5, 2022.

[Sep2022_rpt_procure-3] "Report to Congress on Coast Guard Cutter Procurement". usni.org. September 2, 2022. Archived from the original on September 6, 2022. Retrieved October 20, 2022.

[NSC10-4] "hii-awarded-94m-long-lead-contract-10th-national-security-cutter". usni.org. March 30, 2018. Archived from the original on March 31, 2018. Retrieved March 31, 2018.

[NSC11-5] Cite error: The named reference NSC11 was invoked but never defined (see the help page).

[USCG_NSC_program-6] "National Security Cutter". United States Coast Guard. Retrieved October 20, 2022.

[7] "MTU Powers Deepwater National Security Cutter". The world of Dieselman - MTU. January 30, 2008. Archived from the original on March 10, 2012. Retrieved March 30, 2012.

[8] Coast Guard Selects Small UAS For NSC (PDF), USCG Deputy Commandant for Mission Support, retrieved December 16, 2017

[9] "National Security Cutter: Program Profile". USCG.mil. US Coast Guard. Archived from the original on February 13, 2017. Retrieved February 12, 2017.

[10] "Cutter Bertholf's Indo-Pac Deployment Highlighted Coast Guard's National Security Role". news.usni.org. July 24, 2019. Retrieved January 19, 2020.

[11] "National Security Cutters". Defensemedianetwork. Archived from the original on March 4, 2016. Retrieved May 22, 2017. With much more room on the national security cutter it becomes a considerably more capable platform, because if needed, more sensors and weapons can be added.

[DeepwaterNSC-12] "National Security Cutter (NSC)". Integrated Deepwater System Program. Archived from the original on August 24, 2007. Retrieved September 1, 2007.

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Class overview
USCGC Bertholf, the first National Security Cutter
Builders	Ingalls Shipbuilding
Preceded by	Hamilton class
Cost	$670m(average), $735m(FY13 ship)^[1]
In commission	2008–present
Planned	11^[5] (Option for 12th)^[3]^[6]
Building	1^[4]^[3]
Completed	10^[2]^[3]
Active	10^[4]
General characteristics
Type	United States Coast Guard Cutter / Large patrol vessel
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)
Installed power	3 × Caterpillar 3512B diesel generators
Propulsion	Combined diesel and gas 2 × 7,400 kW (9,900 hp) MTU 20V 1163 diesels 1 × 22 MW (30,000 hp) GE LM2500 gas turbine engine^[7]
Speed	Over 28 knots (52 km/h; 32 mph)
Range	12,000 nautical miles (22,000 km; 14,000 mi)
Endurance	60–90-day cycles
Complement	113 (14 officers + 99 enlisted) and can carry up to 148 depending on mission^[9]
Sensors and processing systems	EADS 3D TRS-16 AN/SPS-75 Air Search Radar SPQ-9B Fire Control Radar AN/SPS-79 Surface Search Radar AN/SLQ-32B(V)2 AN/UPX-29A IFF AN/URN-25 TACAN Mk 46 Mod 1 Optical Sighting System (WMSL 750 - 753) Mk 20 Mod 0 Electro-Optical Sighting System (WMSL 754 - 760) Furuno X and S-band radars Sea Commander Combat System^[10] Link-11 and Link-16 tactical data links
Electronic warfare & decoys	AN/SLQ-32B(V)2 Electronic Warfare System 2 × SRBOC/ 2 × Nulka countermeasures chaff/rapid decoy launchers
Armament	1 × Mk 110 57mm gun a variant of the Bofors 57 mm gun and Gunfire Control System 1 × 20 mm Block 1B Baseline 2 Phalanx Close-In Weapons System 4 × crew-served .50 caliber (12.7 mm) Browning M2 machine guns 2 × crew-served M240B 7.62 mm machine guns Designed for but not with additional weapons and sensors^[11]
Armor	Ballistic protection for main gun
Aircraft carried	1 × MH-65C Dolphin MCH and 2 × sUAS^[8]
Aviation facilities	50-by-80-foot (15 m × 24 m) flight deck, hangar for all aircraft