Constellation-class frigate

	An artist's rendering of the final Constellation-class design
Class overview
Name	Constellation class
Builders	Fincantieri Marinette Marine
Operators	United States Navy (projected)
Preceded by	Freedom and Independence classes; Oliver Hazard Perry class (last class with FFG hull code);
Cost	US$1.28 billion for the first ship; US$1.05 billion for the second ship;
Built	2022–present
In commission	2026 (planned)
Planned	20
On order	6
Building	1
General characteristics
Type	guided-missile frigate
Displacement	7,291 tons, fully loaded
Length	496 ft (151.18 m)
Beam	65 ft (19.81 m)
Propulsion	CODLAG; 1 × General Electric LM2500+G4 gas turbine; 2 × electric propulsion motors: INDAR 2 x 3.4MW; 4 × ship service diesel generators Rolls-Royce MTU 20V 4000 M53B engine 3000 kW for a total output of 12 MW; reduction gears: Timken Power Systems or Philadelphia Gears; 2 x fixed-pitch propellers; 1 × auxiliary propulsion unit Thrustmasters of Texas Hydrologic Retractable Thruster;
Speed	in excess of 26 kn (48 km/h; 30 mph)
Range	6,000 nmi (11,000 km; 6,900 mi) at 16 kn (30 km/h; 18 mph), electric drive
Boats & landing ; craft carried	2 × rigid-hulled inflatable boats
Capacity	200 accommodations
Complement	24 officers and 176 enlisted crew
Sensors and ; processing systems	Aegis Baseline 10 Combat System; AN/SPY-6(V)3 Enterprise Air Surveillance Radar (EASR); AN/SPS-73(V)18 - Next Generation Surface Search Radar; Thales Group CAPTAS-4 Low Frequency Variable-Depth Sonar; TB-37 Multi-Function Towed Array; AN/SQQ-89(V)16 undersea warfare/anti-submarine warfare combat system; Cooperative Engagement Capability;
Electronic warfare ; & decoys	AN/SLQ-32(V)6 electronic warfare suite; 4 × Mark 53 Nulka decoy launching system; AN/SLQ-61 Lightweight Tow Torpedo Defense Mission Module;
Armament	32 Mark 41 VLS cells with:; BGM-109 Tomahawk Cruise Missile; Possibly RIM-162 ESSM Block 2 and/or RIM-174 Standard ERAM missiles; Planned RIM-66 Standard SM-2 Block 3C; 16 × canister-launched over-the-horizon anti-ship weapons (likely Naval Strike Missile); RIM-116 Rolling Airframe Missile launched from Mk 49 Guided Missile Launching System (21 cell); Mk 110 57 mm gun with the Advanced Low Cost Munition Ordnance (ALaMO) projectile and related systems.; Various machine guns M240 or M2;
Aircraft carried	1 × MH-60R Seahawk helicopter; MQ-8C Firescout;
Aviation facilities	extra-large hangar for 1 MH-60R & 1 MQ-8C; RAST Secure & Traverse Aircraft Handling System; Horizontal Reference System; Night Vision Device Compatibility;

The Constellation-class multi-mission guided-missile frigates of the United States Navy are based on the European multipurpose frigates (FREMM), already in service with the French and Italian navies. Constellation follows the modular but problematic littoral combat ships of the Freedom and Independence classes. The U.S. Navy announced the FFG(X) frigate project in the United States Department of Defense's Request For Information (RFI) in July 2017.

The Navy selected five shipbuilders to present their ideas for a prospective design for the proposed twenty FFG(X) guided-missile frigates. In April 2020, the Navy announced that Fincantieri Marinette Marine had won the contract with a modified design based on the FREMM, designed by Naval Group and Fincantieri. The project was later renamed FFG-62 program after the lead ship of her class.

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