FORCETALLY
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At a glance
Measured figures
Length
Single source38.2 m (125 ft 4 in)[source]
Batch 1
Single sourceConfiguration
| Specification | Bay-class patrol boat | River-class patrol vessel |
|---|---|---|
| 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] |
| Name | Bay class[source] | River class[source] |
| Builders | Austal[source] | Batch 1: Vosper Thornycroft Batch 2: BAE Systems Maritime – Naval Ships[source] |
| Operators | Australian Border Force Marine Unit Sri Lanka Navy Malaysian Maritime Enforcement Agency[source] | Royal Navy Brazilian Navy Royal Thai Navy Royal Bahrain Naval Force |
Batch 2
Single sourceBatch 1: 79.5 m (260 ft 10 in) Batch 2: 90.5 m (296 ft 11 in)[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
| In service | 1999–present[source] | — |
|---|
| Completed | 14[source] |
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| Active | 8 (Royal Navy) 3 (Brazilian Navy) 2 (Royal Thai Navy) 1 (Royal Bahrain Naval Force)[source] |
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| Retired | — |
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| Type | Patrol boat[source] | Offshore patrol vessel[source] |
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| Propulsion | 2 × MTU 16V 2000 M70 diesel engines 1 VosperThornycroft bow thruster[source] | — |
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| Boats & landing craft carried | 2 × Wiltrading Pursuit 640 vessels (USLC-2C Survey)[source] | Two Pacific 24 RIBs; Batch 2: Small Unmanned underwater vehicles may be embarked for mine countermeasures[source] |
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| Sensors & processing systems | Radar: Surface search: Racal Decca; E/F and I bands Sonar: Wesmar SS 390E dipping sonar[source] | Batch 2: Kelvin Hughes Ltd SharpEye navigation radar Terma Scanter 4100 2D radar BAE CMS-1 Shared Infrastructure operating system[source] |
|---|
| Armament | 1 × 7.62 mm general purpose machine gun[source] | 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] |
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| Country of origin | Australia[source]Bay-class patrol boat · origin explicitly stated in the linked current national-inventory row; no inference from operator or shipyard | United Kingdom[source] |
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| Preceded by | — | Castle class[source] |
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| Subclasses | — | Krabi -class patrol vessel Amazonas -class corvette[source] |
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| Built | — | 2001–present[source] |
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| In commission | — | 2003–present[source] |
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| Planned | — | 14[source] |
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| Endurance | — | Batch 1: 21 days Batch 2: 35 days[source] |
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| Troops | — | Batch 1: c. 18 Batch 2: up to 50[source] |
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| Aviation facilities | — | Batch 2: Merlin -capable flight deck; small UAVs may be embarked[source] |
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| Notes | — | Batch 1: 25-tonne crane Batch 2: 16-tonne crane[source] |
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