FORCETALLY
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At a glance
Measured figures
Batch 1
Single sourceBatch 2
Single sourceConfiguration
| Specification | River-class patrol vessel | Saryu-class patrol vessel |
|---|---|---|
| Complement | Batch 1: 28-30 Batch 2: 34-50[source] | 16 officers and 102 sailors[source] |
| Power | Batch 1: 2 × Ruston 12R270 diesel engines, 8,250 kW (11,060 hp ), 2 shafts 2 × controllable-pitch propellers Batch 2: 2 × MAN 16V28/33D diesel engines, 14,700 kW (19,700 hp), 2 shafts 2 × controllable-pitch propellers[source] | 2 × Pielstick PA 6B STC diesel engines, 21,725 PS (15,979 kW)[source] |
| Name | River class[source] | Saryu class[source] |
| Builders | Batch 1: Vosper Thornycroft Batch 2: BAE Systems Maritime – Naval Ships |
Batch 1: 79.5 m (260 ft 10 in) Batch 2: 90.5 m (296 ft 11 in)[source]
Length
Single source105 m (344 ft)[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
Goa Shipyard Limited[source] |
| Operators | Royal Navy Brazilian Navy Royal Thai Navy Royal Bahrain Naval Force[source] | Indian Navy Sri Lanka Navy[source] |
|---|
| Preceded by | Castle class[source] | Sukanya class[source] |
|---|
| Subclasses | Krabi -class patrol vessel Amazonas -class corvette[source] | — |
|---|
| Built | 2001–present[source] | — |
|---|
| In commission | 2003–present[source] | 2013 – present[source] |
|---|
| Planned | 14[source] |
|---|
| Completed | 14[source] |
|---|
| Active | 8 (Royal Navy) 3 (Brazilian Navy) 2 (Royal Thai Navy) 1 (Royal Bahrain Naval Force)[source] |
|---|
| Type | Offshore patrol vessel[source] | Offshore patrol vessel[source] |
|---|
| Endurance | Batch 1: 21 days Batch 2: 35 days[source] | — |
|---|
| Boats & landing craft carried | Two Pacific 24 RIBs; Batch 2: Small Unmanned underwater vehicles may be embarked for mine countermeasures[source] | — |
|---|
| Troops | Batch 1: c. 18 Batch 2: up to 50[source] | — |
|---|
| Sensors & processing systems | Batch 2: Kelvin Hughes Ltd SharpEye navigation radar Terma Scanter 4100 2D radar BAE CMS-1 Shared Infrastructure operating system[source] | Sperry Bridgemaster I-band navigation radar EON-51 electro-optical FCS[source] |
|---|
| Armament | Batch 1: 1 × Oerlikon 20 mm cannon 2 × General purpose machine guns Batch 2: 1 × Bushmaster 30 mm cannon 2 × Miniguns (replaced by Browning .50 caliber heavy machine guns as of 2023) 2 × general purpose machine guns[source] | 1 × 76 mm/62 Oto Melara gun 2 × 30 mm/65 AK-630 CIWS[source] |
|---|
| Aviation facilities | Batch 2: Merlin -capable flight deck; small UAVs may be embarked[source] | — |
|---|
| Notes | Batch 1: 25-tonne crane Batch 2: 16-tonne crane[source] | — |
|---|
| Country of origin | United Kingdom[source] | India[source] |
|---|
| Succeeded by | — | Shachi class (2017) (cancelled) Shachi class (2026)[source] |
|---|
| Electronic warfare & decoys | — | Sanket Mk III Electronic Support System Communication Intelligence System ELK 7036 4 × Kavach chaff launchers[source] |
|---|
| Aircraft carried | — | 1 × HAL Dhruv[source] |
|---|
| Reported operators | — |
|
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