Sierra-class corvette

	Four Sierra-class corvettes
Class overview
Name	Sierra class
Builders	Tampico Naval Shipyard; Salina Cruz Naval Shipyard;
Operators	Mexican Navy
Preceded by	Holzinger class
Succeeded by	Durango class
Built	1998–1999
Planned	4
Completed	4
Active	3
Retired	1
General characteristics
Type	Corvette
Displacement	1,366 t (1,344 long tons) full load
Length	70.4 m (231 ft 0 in)
Beam	10.5 m (34 ft 5 in)
Draught	2.8 m (9 ft 2 in)
Propulsion	2 diesel Caterpillar 3616 V16 12,394 bhp (9,242 kW)
Speed	18 knots (33 km/h; 21 mph)
Complement	76
Sensors and ; processing systems	Fire control system: Saab EOS 450 optronic director; Surface/air search radar E/F and I-bands; Alenia 2 combat data system;
Armament	1 Bofors 57 mm gun Mk 3; SA-N-10 surface-to-air missile (Matias Romero only);
Aircraft carried	1 × MBB Bo 105C helicopter
Aviation facilities	One helicopter hangar and helipad

The Sierra-class corvettes are corvettes of the Mexican Navy intended mainly for interception of drug smugglers, exclusive economic zone (EEZ) patrol, and countering terrorism. The class comprises four ships with the lead ship ARM Sierra commissioned by the Mexican Navy in 1998. One ship, ARM Benito Juárez, was sunk as a target ship in 2007 after being wrecked by fire in 2003. The other three vessels remain in service.

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