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Santa María class



Overview


Santa Maria class frigate

Spanish Santa Maria class frigate during an exercise in 2004.
Source: US Navy - © Public domain

Origin
Spain
Type
Frigate
Entered service
1986
Status
In service
Development
1977
Developer
United States
Spain
Production
1984 - 1990 (4 ships)
1990 - 1994 (2 ships)
Producer
Spain - Bazan shipyard in Ferrol
Number produced
6
Designations
F-81 class (lead ship pennant number)
Notable users
Spain

Description


Introduction

The Santa María class is a class of frigates of Spanish origin. This class of six ships is a derivative of the American Oliver Hazard Perry, but built in modified form is Spain. These ships replaced the Baleares class, a Spanish variant of the US Knox class.

Design

The Santa María is modified variant of the American Oliver Hazard Perry class. It is a bit wider and both sensors and weapon suite are different some areas. One of the two hangars has been repurposed. Still two helicopters can be accommodated, but one of those cannot be stored inside. The Santa María class is a multipurpose design with medium range air defense, anti-surface armament and anti-submarine armament, which includes the helicopters.

Firepower

The main armament is a Mk 13 single arm launcher for both SM-1MR medium range surface to air missiles and Harpoon anti-ship missiles. The SM-1MR can be used against a single target at a time, with either one or two missiles fired per target. The 76mm Compact naval gun is mounted amidships, since both bow and stern are

Sensors

The Santa María is fitted with a 2D air search radar and one fire control radar for the Standard missiles. This is supplemented with a surface search radar. The sonar suite consists of both a bow mounted sonar and a towed array.

Mobility

The Santa María class uses gas turbine propulsion. Two LM2500 gas turbines are fitted, powering a single shaft with variable pitch propeller. Maximum speed is 29 knots.

Users

The Santa María class is used only by Spain. Six ships were built between 1984 and 1994. All of which remain in service by 2020.

Media


Details


Facts Santa María class
General
Origin
Spain
Type
Frigate
Complement
223, including 13 officers
Dimensions
Displacement
3.668 t standard
4.033 t full load
Length
138.8 m
Beam
14.3 m
Draft
7.5 m or 8.6m?
Propulsion
Arrangement
Gas turbine propulsion
Machinery
2x LM2500-30 gas turbine
Power output
41.000 hp combined
Propulsion
1 shaft, controllable pitch propellor
2 retractable thrusters, 350 hp each
Mobility
Speed
29 kt maximium
Range
4.500 nm at 20 kt
Sensors
Air search
Raytheon AN/SPS-49(V)4 or (V)5
Surface search
Raytheon SPS-55
Fire control radar
Mk 92 Mod 4/6
Sonar
DE1160 bow mounted
Sonar
SQR-19(V) or (V)2 towed array
Navigation radar
Raytheon 1650/9
Systems
ECM
MK 3600/3700 (before refit)
Rigel (after refit)
Decoys
4x 6-tube Mk 37 Mod 1/2 SRBOC
SLQ-25 Nixie anti-torpedo decoy
Data link
Link 11
Guns
Dual purpose
1x 76mm Compact
CIWS
1x 20mm Meroka Mod 2A (or 2B after refit)
Self-defense
2x 12.7mm M2HB
SSM
Type
RGM-84 Harpoon, Block 1 B
Launcher
Mk 13 Mod 4 single arm launcher
Ammunition
8 missiles standard loadout
SAM
Type
RIM-66 Standard SM-1MR Block VI
Launcher
Mk 13 Mod 4 single arm launcher
Ammunition
32 missiles standard loadout
ASW
Torpedo launcher
2x3 324mm Mk 32
Torpedo type
Mk 46 MOD 5 lightweight torpedo
Aircraft
Facilities
Hangar for 1 medium size helicopter
Up to 2 helicopters can be carried
Supported types
SH-60B Seahawk

Subcomponents


Standard SM-1MR

1x Mk 13 single arm launcher for SM-1MR Block VIB. Magazine holds 40 weapons: 32 SM-1MR plus 8 RGM-84 Harpoon.

RGM-84 Harpoon

RGM-84L Harpoon Block 2. Launched by Mk 13 Mod 4 single arm launcher. Magazine holds 40 missiles, including 32 Standard SM-1MR.

76mm Compatto

1x 76mm Compatto dual purpose gun amidships.

20mm Meroka

1x 20mm Meroka close-in weapon system on hangar.

Mk 46

2x3 Mk 32 torpedo tubes for Mk 46 MOD 5 torpedo.

Browning M2HB

2x 12.7mm M2HB heavy machinegun fitted for self-defense.

SH-60 Seahawk

Facilities 2 medium size helicopters, of which only one can be stored inside the hangar.