Difference between revisions of "Greywater class corvette"

Revision as of 21:17, 20 August 2007

The Greywater- or River-class corvette was a multipurpose small warship designed by the Royal Shipyards of Isselmere-Nieland for use by the Royal Isselmere-Nieland Navy as a fisheries and offshore resources protection vessel and ocean-going escort, and by the Royal Isselmere-Nieland Coast Guard as a long endurance cutter. It was in service from 2003 to 2004.

Batch 1

Displacement: 3,318t (deep)
Dimensions: length 106.8m (wl), 115.5m (oa); beam 13.1m; draught 5.8m.
Propulsion: 1-shaft CODOG-IFEP with bow thruster; 2 gas turbines (Isselmere Motor Works MTG-4F) and 2 auxiliary diesels (IMW MMD-22); 35.2 kts.
Crew: Standard: 84 (excluding flight crew, etc.); 108
Protection: (Main belt): 3cm; (Barbette): 3cm; (Hangar): 3cm; (Deck (key spaces)): 3cm; (CIC): 3cm.
Weapons:

• AAW: GWLS.30 (aft), 16-cell GWLS.37M (fore), 2 × MLG-27
• ASuW: 2 × 6-cell GWLS.39 (aft)
• ASW: 2 × 3 324mm torpedo tubes (port and starboard)
• GP: OTO-Melara 76 mm dual-purpose gun (A position).

Aircraft: Capable of deploying and recovering one Cormorant HM.1-sized helicopter; equipped with the "beartrap" helicopter recovery system.
Electronics suite:

• Computer complex: MEI.4 Mimir Integrated Shipboard Operations Management System (ISOMS)
• Threat management systems: MEQ.185 SELKIE (anti-torpedo)
• Radars: MRU.112(V)2 Crow (multifunction search and tracking), MRS.111 Jackdaw (volume search), MRN.120 Bottlenose (navigation), MRS.167 Kayak (surface search), MRG.182 Balmung (gunnery fire control)
• Passive electro-optical: MSU.126 Asp (intermediate range infra-red search and tracking), MSS.127 Owl (electro-optical surface surveillance)
• Combination radar/electro-optical: MSP.133 Tuesday (helicopter landing system), 2 × MRG.184 Gjallar (GWLS.37 and RAM fire control)
  
• Sonar: MQU.139 Hound (keel-mounted MF/LF sonar)
• ECM/ESM: MLQ.177 (jammer), MLR.165 (radar/signals emissions receiver and direction finder), MPR.184 Nott (laser warning receiver and direction finder)
• Communications: MSC.121 Alvis (secure satellite communications system), JSQ.117(V)2 Godi (Link 17.2; secure datalink), MSW.125(V)2 Ran (Link17.2G; secure missile control datalink).

Countermeasures: Siren (anti-missile), MASS (anti-missile), MLQ.135 Mackerel (anti-torpedo).
Cost: $300 million USD
Production time: 1.5 years
Ships in class (domestic):
Was in service with: Isselmere-Nieland, Descanso (12), Evara (2), Grumio (6)), Jimnam (12), Kay Son (5), Manchus-China (12), Neo Pacifica (4), Ottoman Khaif (20), West Scotland (see below)
Previously manufactured by: Isselmere-Nieland, West Scotland (under licence)

Batch 2

Displacement: 3,318t (deep)
Dimensions: length 106.8m (wl), 115.5m (oa); beam 13.1m; draught 5.8m.
Propulsion: 1-shaft CODOG-IFEP with bow thruster; 2 gas turbines (IMW MTG-4) and 2 auxiliary diesels (IMW MED-22); 35.2 kts.
Crew: (standard): 84 (excluding flight crew, etc.); 108
Protection: (Main belt): 3cm; (Barbette): 3cm; (Hangar): 3cm; (Deck (key spaces)): 3cm; (CIC): 3cm; (Bulkheads): 5.08cm.
Compartmentalisation: 10 transverse bulkheads.
Weapons:

• AAW: GWLS.65M (aft), 16-cell GWLS.76M (fore), 2 × MLG-27
• ASuW: 2 × 6-cell GWLS.39M (aft)
• ASW: 2 × 3 324mm TT (port and starboard)
• GP: OTO-Melara 76 mm gun (A position)

Aircraft: Capable of deploying and recovering one Cormorant HM.1-sized helicopter, Cuttlefish DSR.1; equipped with the "beartrap" helicopter recovery system (DSR.1 launched from torpedo tubes).
Electronics suite:

• Computer complex: MEI.5 Muninn/MEI.4 Mimir (ISOMS)
• Threat management systems: MEQ.181 NAIADS (anti-air), MEQ.185 SELKIE (anti-torpedo), MMX.193 MITRE (target recognition)
• Radars: MRU.112(V)3 Crow (multifunction), MRS.118 Kafka/MRS.111(V)3 Jackdaw (air volume search), MRN.120 Bottlenose (navigation), MRS.167 Kayak (surface search), MRG.182 Balmung (gunnery fire control)
• Optronics: MSU.131 Asp (intermediate range multifunction), MSS.127 Owl (surface surveillance)
• Combination radar/optronics: MSP.133 Tuesday (helicopter landing system), 2 × MSG.183 Gjallar (close range fire control)
• Sonar: MQU.139 Hound (keel-mounted, MF/LF), MQS.145 Herring (variable depth)
• ECM/ESM: MLR.165 (radar/signals emissions receiver and direction finder), MLQ.177 (jammer), MPR.184 Nott (laser warning receiver and direction finder), MRD.199 (signals direction finder)
• Communications: JSQ.117(V)2 Godi (Link 17.2; secure datalink), MSC.121 Alvis (secure satellite communications system), MSW.125(V)2 Ran (Link 17.2G; secure missile guidance datalink), 2 × NQC.128(V)2 Dvalin (Link 17.2U; encrypted acoustic modem), MRC.178 (secure communications system), MPC.190 (laser communications transceiver), JSC.196M (encrypted burst communications transceiver).

Countermeasures: 2 × MLQ.135 Mackerel (anti-torpedo), 2 × 16-cell MLE.140 MUSE (anti-missile).
Cost: $300 million USD
Production time: 1.5 years
In service: Asurnahb – 10, Descanso – 12, Grumio – 12, Illior – 124, Isselmere-Nieland – 872, Jimnam – 62, Kay Son – 5, Kongereka – 8, Manchus-China – 12, Neo Pacifica – 4, New India Minor – 1, Ottoman Khaif – 24, Ranudon – 4, Samotopia – 12, West Scotland (see below)
Manufactured by: Isselmere-Nieland, West Scotland (under licence)

Batch 3

Displacement: 3,318t (deep)
Dimensions: length 106.8m (wl), 115.5m (oa); beam 13.1m; draught 5.8m.
Propulsion: 1-shaft CODOG-IFEP with bow thruster; 2 gas turbines (IMW MTG-4) and 2 auxiliary diesels (IMW MED-22); 35.2 kts.
Crew: (standard): 84 (excluding flight crew, etc.); 108
Protection: (Main belt): 3cm; (Barbette): 3cm; (Hangar): 3cm; (Deck (key spaces)): 3cm; (CIC): 3cm; (Bulkheads): 5.08cm.
Compartmentalisation: 10 transverse bulkheads.
Weapons:

• AAW: GWLS.65M (a), 16-cell GWLS.76M (f), 2 × L41A3 30 mm
• ASuW: 2 × 6-cell GWLS.39M (aft)
• ASW: 2 × 3 324 mm TT (port and starboard)
• GP: OTO-Melara 76 mm gun (A position).

Aircraft: Capable of deploying and recovering a Cormorant HM.1-sized helicopter, Cuttlefish DSR.1; equipped with the "beartrap" helicopter recovery system (DSR.1 launched from TT).
Electronics suite:

• Computer complex: MEI.5 Muninn/MEI.4 Mimir (ISOMS)
• Threat management systems: MSQ.181 NAIADS (anti-air), MEQ.185 SELKIE (anti-torpedo), MSX.193 MITRE (target recognition)
• Radars: MRU.112(V)3 Crow (multifunction), MRS.118 Kafka/MRS.111(V)3 Jackdaw (air volume search), MRN.120 Bottlenose (navigation), MRS.167 Kayak (surface search), MRG.182 Balmung (gunnery fire control)
• Optronics: MSU.131 Asp (intermediate range multifunction), MSS.127 Owl (surface surveillance)
• Combination radar/optronics: MSP.133 Tuesday (helicopter landing system), 2 × MSG.183 Gjallar (close range fire control)
• Sonar: MQU.139 Hound (keel-mounted, MF/LF), MQS.145 Herring (variable depth)
• ECM: MLR.165 (radar/signals emissions receiver and direction finder), MLQ.177 (jammer), MPR.184 Nott (laser warning receiver and direction finder), MRD.199 (signals direction finder)
• Communications: JSQ.117(V)2 Godi (Link 17.2; secure datalink), MSC.121 Alvis (secure satellite communications system), MSW.125(V)2 Ran (Link 17.2G; secure missile guidance datalink), 2 × NQC.128(V)2 Dvalin (Link 17.2U; encrypted acoustic modem), MRC.178 (secure communications system), MPC.190 (laser communications transceiver), JSC.196M (encrypted burst communications transceiver).

Countermeasures: 2 × MLQ.135 Mackerel (anti-torpedo), 2 × 16-cell MLE.140 MUSE (anti-missile).
Cost: $300 million USD
Production time: 2.75 years

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