Credit
Ministry of Defence · GODL-India · Resized · GODL-India · Source ↗ · Modified
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At a glance
Anti-Submarine Warfare Shallow Water Craftlarger figure on 1 of 1
German tanker Spessartlarger figure on 0 of 1
Counts only measures both sources give with the same scope. A larger figure is not a better system.
Measured figures
Arnala class
Single sourceMahe class
Single sourceConfiguration
| Specification | Anti-Submarine Warfare Shallow Water Craft | German tanker Spessart |
|---|---|---|
| Name | Anti-Submarine Warfare Shallow Water Craft (ASW-SWC)[source] | Spessart[source] |
| Builders | Cochin Shipyard (CSL) Garden Reach Shipbuilders & Engineers (GRSE) (in partnership with Kattupalli Shipyard of L&T )[source] | — |
| Operators | Indian Navy[source] | — |
| Preceded by | Kamorta class by antecedence Abhay class by role[source] | — |
| Succeeded by | Next Generation Missile Vessels |
77.6 m (255 ft) ( Arnala class) 78 m (256 ft) ( Mahe class)[source]
Length
Single source130.2 m (427 ft 2 in)[source]
1 MaK 12-cylinder diesel engine
Single source1 MaK 12-cylinder diesel engine 5,880 kW (7,890 hp )[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
| — |
| Cost | ₹ 12,622 crore (equivalent to ₹ 150 billion or US$1.5 billion in 2023) for 16 ships (FY 2020) ₹ 789 crore (equivalent to ₹ 929 crore or US$96 million in 2023) per ship (FY 2020)[source] | — |
|---|
| Built | 2020 – present[source] | — |
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| In commission | 2025 – present[source] | — |
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| Planned | 16[source] | — |
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| Building | — |
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| Completed | — |
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| Active | — |
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| Type | Corvette[source] | Rhön -class tanker[source] |
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| Propulsion | 3 × MTU 20V 4000 M93L ( Arnala class) 3 × L&T Water-jet propulsion[source] | 1 shaft, controllable pitch propeller[source] |
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| Sensors & processing systems | Combat Suite: ASW Combat Suite (presumably the DRDO -developed IAC MOD 'C' combat suite) Sonar: DRDO Abhay Hull-Mounted Sonar (HMS) Low Frequency Variable Depth Sonar (LFVDS) Management Systems: Fire Control System (FCS) Integrated Platform Management System (IPMS) Automatic Power Management System (APMS) Battle Damage Control System (BDCS)[source] | — |
|---|
| Armament | Anti-Submarine Warfare: 1 × RBU-6000 anti-submarine rocket launcher 2 × triple lightweight torpedo launchers (presumably the Advanced Light Weight Torpedo (ALWT)) Anti-submarine mines (launched from mine-laying rails) Guns: 1 × Naval Surface Gun (30mm) 2 × OFT 12.7 mm M2 Stabilized Remote Controlled Gun[source] | — |
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| Notes | Largest waterjet-powered vessels in the Indian Navy .[source] | — |
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| Country of origin | India[source] | Germany[source]German tanker Spessart · literal inventory Origin field assigned to the exact named-ship row covered by the explicit shared Origin cell; no operator, manufacturer location or parent/sibling specification inference |
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| Namesake | — | Spessart[source] |
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| Owner | — | Deutsche Marine[source] |
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| Port of registry | — | Hamburg , Germany[source] |
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| Builder | — | Kröger , Rendsburg[source] |
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| Launched | — | 13 February 1975[source] |
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| Acquired | — | 1976[source] |
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| Commissioned | — | 5 September 1977[source] |
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| Renamed | — | Okapi[source] |
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| Home port | — | Kiel , Germany[source] |
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| Identification | — | IMO number : 7362079 MMSI number : 211211850 Callsign : DRKN Pennant number : A1442[source] |
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| Status | — | Active[source] |
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| Tonnage | — | 6,103 GRT 10,800 DWT[source] |
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| Capacity | — | 11,000 m 3 (390,000 cu ft) (fuel) 400 m 3 (14,000 cu ft) (water)[source] |
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| Used by | — | German Navy[source]Current operator stated in the article; inventory date not specified |
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