ARM Holzinger (PO-131)
Class overview
Name	Holzinger class
Builders	Tampico Naval Shipyard and Salina Cruz Naval Ship Yard
Operators	Mexican Navy
Preceded by	Uribe class
Succeeded by	Sierra class
Built	4
In service	4
Active	4
General characteristics
Type	Offshore patrol vessel
Displacement	1022 tons (full load)
Length	74.4 m (244 ft)
Beam	10.5 m (34 ft)
Draught	3.18 m (10.4 ft)
Propulsion	2 Diesel electric drive MTU 20 V. 958TB-92 13,320 bhp (9,930 kW)
Speed	22 knots (41 km/h; 25 mph)
Range	3,830 nmi (7,090 km; 4,410 mi)
Endurance	20 days
Complement	73
Sensors and processing systems	2 Navigation Radars Raytheon SPS-64 (V)6A
Armament	2 Bofors L60 40 mm AA. They are on a US MK 1 water-cooled twin mount.
Aircraft carried	1 MBB Bo 105 Helicopter
Aviation facilities	One helicopter hangar and helipad

Holzinger-class patrol vessels are offshore patrol vessels in service with the Mexican Navy. They are a Mexican design, based on the Uribe class developed by the Spanish Naval Company Empresa Nacional Bazán in 1982. Holzinger-class patrol vessels have a smaller helicopter deck than the Uribe class and have main armaments (two twin US MK1 Bofors 40 mm AA mounts) at 'A' position. They are able to operate MBB Bo 105 helicopters on board.

Uribe-class ships were the first medium size vessels built by the Mexican Navy. Two first hulls were built at Tampico Naval Shipyard (Tamaulipas); the second two hulls were built at Salina Cruz Naval Shipyard (Oaxaca).

Ships

• ARM Holzinger (PO 131) (1991)
• ARM Godínez (PO 132) (1991)
• ARM De la Vega (PO 133) (1994)
• ARM Berriozabal (PO 134) (1994)

References

• Faulkner, K. (1999) Jane's Warship Recognition Guide. 2nd Edition. London: Harper Collins Publishers.
• Friedman, N. (1997) The Naval Institute Guide to World Naval Weapons Systems, 1997–1998. US Naval Institute Press.
• Wertheim, E. (2007) Naval Institute Guide to Combat Fleets of the World: Their Ships, Aircraft, and Systems. 15 edition. US Naval Institute Press.