Alentejo-class cruiser |
| HMS Alentejo, lead ship of the Alentejo-class |
| Class overview |
| Name: |
Alentejo-class cruiser |
| Builders: |
Estaleiros Navais de Viana do Castelo |
|
| Operators: |
Portuguese Navy |
| Subclasses: |
|
| Cost: |
≈$1 billion (USD) |
| Built: |
1980–1994 |
| In commission: |
Since 1983 |
| Planned: |
27 |
| Completed: |
22 |
| Active: |
22 |
| Canceled: |
5 |
| Lost: |
0 |
| Retired: |
0 |
| General characteristics |
| Type: |
Guided missile cruiser |
| Displacement: |
- Light Displacement: 10,663 tons
- Full Displacement: 11,666 tons
|
| Length: |
Overall Length: 586 ft (179 m)
|
| Beam: |
Extreme Beam: 63 ft (19 m)
|
| Draft: |
Maximum Navigational Draft: 32 ft (10 m)
|
| Propulsion: |
2 D2G General Electric nuclear reactors, two shafts, 60,000 shp
|
| Speed: |
30+ knots (56+ km/h; 35+ mph) |
| Range: |
Unlimited distance; 20–25 years |
| Complement: |
33 officers, 27 Chief Petty Officers, and approx. 340 enlisted
|
| Crew: |
NA |
Sensors and
processing systems: |
- AN/SPY-1A/B multi-function radar
- AN/SPS-49 air search radar
- AN/SPG-62 fire control radar
- AN/SPS-73 surface search radar
- AN/SPQ-9 gun fire control radar
- AN/SLQ-32 Electronic Warfare Suite
- AN/SQQ-89(V)1/3 - A(V)15 Sonar suite, consisting of:
- AN/SQS-53B/C/D active sonar
- AN/SQR-19 TACTAS, AN/SQR-19B ITASS, & MFTA passive sonar
- AN/SQQ-28 light airborne multi-purpose system
|
Electronic warfare
& decoys: |
- Mark 36 SRBOC
- SLQ-25A Nixie torpedo countermeasures
|
| Armament: |
- 2 × 61 cell Mk 41 vertical launch systems containing
- 122 × mix of:
- RIM-66M-5 Standard SM-2MR Block IIIB
- RIM-156A SM-2ER Block IV
- RIM-161 SM-3
- RIM-162A ESSM
- RIM-174A Standard ERAM
- BGM-109 Tomahawk
- RUM-139A VL-ASROC
- 8 × Naval Strike Missile SSMs
- 2 x 8"/55 caliber Mark 71 gun
- 2 × 25mm chain guns
- 6 × 12.7 mm M2 machine guns
- 2 × Mk 32 12.75-in (324 mm) triple torpedo tubes for lightweight torpedoes
- 2 × Kashtan (CADS-N-1) point defense gun/missile system
|
| Armor: |
Limited Kevlar splinter protection in critical areas |
| Aircraft carried: |
2 × Sikorsky SH-60B or MH-60R Seahawk LAMPS III helicopters. |
Elegant and heavily armed warships, the Alentejo-class nuclear-powered guided-missile cruisers are a series of twenty-two double-ended (with armament carried both fore and aft) guided-missile cruisers commissioned in the late 1970s, which serve in the Royal Navy. With their nuclear power plants, and the resulting capability of steaming at high speeds for long periods of time, these are excellent escorts for the fast nuclear-powered aircraft carriers, such as the São Paulo-class aircraft carrier. Their main mission is as air-defense ships, though they dio have excellent flagship facilities, as well as capabilities as anti-submarine (ASW) ships, surface-to-surface warfare (SSW) ships, and in gun and missile bombardment of shore targets.
Ships in class
|
Name
|
Number
|
Launched
|
Commissioned
|
Home port
|
Status
|
|
Alentejo
|
CGN-52
|
11 March 1985
|
20 September 1986
|
Rio
de Janeiro, Brazil
|
in active service, as of 2016
|
|
Algarve
|
CGN-53
|
22 August 1985
|
21 February 1987
|
Lisbon,
Portugal
|
in active service, as of 2016
|
|
Beira
|
CGN-54
|
14 February 1986
|
6 June 1987
|
Beira,
Mozambique
|
in active service, as of 2016
|
|
Douro
Litoral
|
CGN-55
|
20 June 1986
|
26 September 1987
|
Colombo,
Ceylon
|
in active service, as of 2016
|
|
Estremadura
|
CGN-56
|
14 November 1986
|
23 January 1988
|
Luanda,
Angola
|
in active service, as of 2016
|
|
Minho
|
CGN-57
|
3 April 1987
|
12 August 1988
|
Rio
de Janeiro, Brazil
|
in active service, as of 2016
|
|
Ribatejo
|
CGN-58
|
12 July 1987
|
18 March 1989
|
Lisbon,
Portugal
|
in active service, as of 2016
|
|
Trás-os-Montes
|
CGN-59
|
2 October 1987
|
11 February 1989
|
Beira,
Mozambique
|
in active service, as of 2016
|
|
Acre
|
CGN-60
|
19 March 1988
|
9 December 1989
|
Colombo,
Ceylon
|
in active service, as of 2016
|
|
Amazonas
|
CGN-61
|
23 October 1988
|
16 June 1990
|
Luanda,
Angola
|
in active service, as of 2016
|
|
Bahia
|
CGN-62
|
15 July 1988
|
4 November 1989
|
Rio
de Janeiro, Brazil
|
in active service, as of 2016
|
|
Espírito
Santo
|
CGN-63
|
11 March 1989
|
9 March 1991
|
Lisbon,
Portugal
|
in active service, as of 2016
|
|
Pará
|
CGN-64
|
22 July 1989
|
22 June 1991
|
Beira,
Mozambique
|
in active service, as of 2016
|
|
Paraíba
|
CGN-65
|
1 September 1989
|
12 January 1991
|
Luanda,
Angola
|
in active service, as of 2016
|
|
Pernambuco
|
CGN-66
|
1 June 1990
|
14 September 1991
|
Colombo,
Ceylon
|
in active service, as of 2016
|
|
Rondônia
|
CGN-67
|
8 September 1990
|
18 July 1992
|
Rio
de Janeiro, Brazil
|
in active service, as of 2016
|
|
Benguela
|
CGN-68
|
2 November 1990
|
2 May 1992
|
Lisbon,
Portugal
|
in active service, as of 2016
|
|
Cabinda
|
CGN-69
|
2 August 1991
|
14 November 1992
|
Colombo,
Ceylon
|
in active service, as of 2016
|
|
Cunene
|
CGN-70
|
13 July 1991
|
10 May 1993
|
Beira,
Mozambique
|
in active service, as of 2016
|
|
Huambo
|
CGN-71
|
10 January 1992
|
12 June 1993
|
Luanda,
Angola
|
in active service, as of 2016
|
|
Malanje
|
CGN-72
|
13 June 1992
|
18 September 1993
|
Rio
de Janeiro, Brazil
|
in active service, as of 2016
|
|
Zaire
|
CGN-73
|
20 November 1992
|
4 July 1994
|
Lisbon,
Portugal
|
in active service, as of 2016
|
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