Allende-class frigate

	ARM Almirante Francisco Javier Mina at Cozumel
Class overview
Name	Allende class
Builders	Todd Shipyard, Seattle and San Pedro; Lockheed Shipbuilding and Construction Company; Avondale Shipyard;
Operators	Mexican Navy
In commission	1998–present
Completed	4
Active	4
General characteristics
Type	Multi-purpose anti-submarine frigate
Displacement	3,011 long tons (3,059 t) standard; 4,260 long tons (4,330 t) full load;
Length	439 ft 6 in (133.96 m)
Beam	46 ft 8 in (14.22 m)
Draught	24 ft 8 in (7.52 m) max
Installed power	2 × Combustion Engineering/Babcock & Wilcox boilers
Propulsion	1 Westinghouse steam turbine 35,000 shp (26,000 kW)
Speed	27 knots (50 km/h; 31 mph)
Range	4,300 nmi (8,000 km; 4,900 mi) at 22 knots (41 km/h; 25 mph)
Complement	288
Sensors and ; processing systems	SPS-10 or SPS-67 surface search radar; SPS-40B air search radar; SQS-26 CX hull mounted LF sonar; SPG-53F fire control radar; TACAN SRN-15A;; Mk 114 ASW fire control system; Mk 68 gunfire fire control system;
Armament	1 × 5 in (127 mm)/54 cal. Mk 42 DP gun;; 2 × twin fixed MK 32 Mod. 9 324 mm (13 in) torpedo launchers; Mk 25 BPDMS launcher for Sea Sparrow missiles (Allende only);
Aircraft carried	1 MBB Bo 105 helicopter
Aviation facilities	One helicopter hangar and helipad
Notes	Ex-Knox-class US ocean escort frigates

The Allende class is a series of anti-submarine frigates used by the Mexican Navy. Allende-class frigates are former United States Navy Knox-class-ships which were acquired beginning in 1997. They form the Mexican Gulf Fleet of the Mexican Navy. They are used for anti-submarine and offshore patrol duties.

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