Sierra-class corvette

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Marina Michoacán.jpg
Four Sierra-class corvettes
Class overview
Name: Sierra class
Builders: Tampico Naval Shipyard and Salina Cruz Naval Shipyard
Operators:  Mexican Navy
Preceded by: Holzinger class
Succeeded by: Durango class
Planned: 4
Completed: 4
Active: 3
Lost: 1
General characteristics
Type: Offshore patrol vessel
Displacement: 1,335 tons
Length: 75 m (246 ft 0.8 in)
Propulsion: 2 diesel Caterpillar 3616 V16 12,394 bhp (9,242 kW)
Speed: 18 knots (33 km/h; 21 mph)
Range: 3,830 nmi (7,090 km; 4,410 mi) at 18 kn (33 km/h; 21 mph)
Complement: 74
Sensors and
processing systems:
  • Fire dontrol system: DAFCO Optronic system.
  • Navigation: X-Bnd radar
  • Surf/Air search: S band radar.
Armament: 1 Bofors 57 mm gun Mk 2
Aircraft carried: 1 x MBB Bo 105
Aviation facilities: One helicopter hangar and Helipad

The Sierra-class corvettes are 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 (Armada de la Republica Mexicana) Sierra (P-141) commissioned by the Mexican Navy in 2000.

Originally, this project was designated Holzinger 2000 because it is a further development of Mexican Navy Holzinger-class ships introduced in the early 1990s. These ships represent modern shipbuilding with an aft flight deck and hangar for one MBB BO-105C helicopter, stealth features and one 57-millimetre (2.2 in) Mk2 naval gun in the fore deck to engage air and surface targets.[1]


  • ARM Sierra (P-141)
  • ARM Juarez (P-142) - Taken out of service after a fire incident.[2]
  • ARM Prieto (P-143)
  • ARM Romero (P-144)


  • Wertheim, E. (2007) Naval Institute Guide to Combat Fleets of the World: Their Ships, Aircraft, and Systems. 15 edition. US Naval Institute Press.