USS Sterett on 7 September 1990
Class overview
Name	Belknap class
Builders	Several
Operators	United States Navy
Preceded by	Leahy class
Succeeded by	California class
Subclasses	Truxtun class
Built	1962–1967
In commission	1964–1995
Completed	9
Retired	9
General characteristics
Type	Guided missile cruiser
Displacement	7,930 tons[1] (8,057 metric tons)
Length	547 ft (167 m)[1]
Beam	55 ft (17 m)[1]
Draft	29 ft (8.8 m)[2]
Propulsion	four 1200 psi (8300 kPa) boilers, two geared steam turbines, two shafts. 85,000 shp (63,384 kW)[1]
Speed	32 knots[1] (59 km/h)
Complement	27 officers, 450 enlisted[1]
Sensors and processing systems	AN/SPS-10 surface search RADAR[3] AN/SPS-48 3D air search radar[3] AN/SPS-49 2D air search radar 2 AN/SPG-55 Terrier missile fire control radar[3][4] AN/SQS-26 SONAR[3][5]
Armament	(final configuration) 1 × Mk 10 Mod 7 Guided Missile Launching System with 40 SM-2ER Standard missiles 20 × RUR-5 ASROC Antisubmarine Missiles (Fired from the Mk 10 launcher) 2 × 4 Harpoon missile launchers 2 × 3 Mark 46 torpedo launchers 1 × 5 Inch/54-caliber Mk. 42 gun 2 × Phalanx CIWS[1][2]
Armor	none[2]
Aircraft carried	(final configuration) 1 × SH-2H Seasprite[1]

The Belknap-class cruiser was a class of single-ended guided-missile cruisers (their missile armament was installed only forward, unlike "double-ended" missile cruisers with missile armament installed both forward and aft) built for the United States Navy during the 1960s. They were originally designated as DLG frigates (destroyer leaders; the USN use of the term frigate from 1950 to 1975 was intended to evoke the power of the sailing frigates of old), but in the 1975 fleet realignment, they were reclassified as guided missile cruisers (CG).

Description

When commissioned, the main armament of the Belknap class was a 5-inch/54-caliber Mk. 42 gun on the quarterdeck and a twin-rail RIM-2 Terrier Mk 10 Missile Launcher on the foredeck.^[6] The Mk 10 Mod 7 launchers in this class were also capable of launching RUR-5 ASROC to eliminate need for a separate Mk 112 ASROC launcher.^[7] These were unofficially spoken of as Ter/AS (tear-ass) launchers.^{[citation needed]} The class was also equipped with two twin 3"/50 caliber guns for defence against sub-sonic aircraft.^[2] In the early 1980s, the Terrier missiles were replaced with RIM-67 Standard missiles; and during the NTU program in the late 1980s and early 1990s the class had its Standard SM-1 system upgraded to utilize SM-2ER Block II, the 3-inch guns were replaced with two 4 cell Harpoon Surface-to-surface missile launchers, and two Phalanx CIWS systems were installed.^[2]

The derivative USS Truxtun shared the weapons systems outfit of the Belknap class, but was nuclear-powered, larger and substantially unrelated in design (for example, many weapons systems in different locations, such as the aft-facing GMLS). Most information related to nuclear cruisers is still classified, but Truxtun appears to be more a Belknap-like derivative of the nuclear cruiser Bainbridge than the other way around.^[6]

Ships in class