FORCETALLY
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At a glance
Bay-class patrol boatlarger figure on 0 of 3
Uraga-class mine countermeasure vessellarger figure on 3 of 3
Counts only measures both sources give with the same scope. A larger figure is not a better system.
Measured figures
Length
Single source38.2 m (125 ft 4 in)[source]
Length
Single sourceConfiguration
| Specification | Bay-class patrol boat | Uraga-class mine countermeasure vessel |
|---|---|---|
| Name | Bay class[source] | Uraga class[source] |
| Builders | Austal[source] | Mitsui Engineering & Shipbuilding , Tamano Hitachi Zosen Corporation , Maizuru[source] |
| Operators | Australian Border Force Marine Unit Sri Lanka Navy Malaysian Maritime Enforcement Agency[source] | Japan Maritime Self-Defense Force[source] |
| In service | 1999–present[source] |
141 m (463 ft)[source]
at 20 knots (37 km/h; 23 mph)
Single source1,000 nmi (1,900 km; 1,200 mi) at 20 knots (37 km/h; 23 mph)[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
| — |
| Completed |
|---|
| Active |
|---|
| Retired | — |
|---|
| Type | Patrol boat[source] | Mine countermeasures vessel[source] |
|---|
| Propulsion | 2 × MTU 16V 2000 M70 diesel engines 1 VosperThornycroft bow thruster[source] | 2 × Mitsui 12V42M-A Diesel 2 × axes[source] |
|---|
| Boats & landing craft carried | 2 × Wiltrading Pursuit 640 vessels (USLC-2C Survey)[source] | — |
|---|
| Sensors & processing systems | Radar: Surface search: Racal Decca; E/F and I bands Sonar: Wesmar SS 390E dipping sonar[source] | OPS-39C OPS-14C OPS-20 Type 3 minelaying device Mk105 aeromagnetic device Mk104 aeronautical device Type 81 fire control system Sonar[source] |
|---|
| Armament | 1 × 7.62 mm general purpose machine gun[source] | 1 × OTO Melara 76mm naval gun 2 × Oerlikon 20 mm cannon 2 × M2 Browning[source] |
|---|
| 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 | Japan[source] Japan[source] |
|---|
| Preceded by | — | Hayase class Sōya class[source] |
|---|
| Succeeded by | — | N/A[source] |
|---|
| Built | — | 1995-1997[source] |
|---|
| In commission | — | 1997 - present[source] |
|---|
| Planned | — |
|---|
| Depth | — | 5.4 m (17 ft 9 in)[source] |
|---|
| Electronic warfare & decoys | — | NOLR-8 Mk.137 Decoy launcher[source] |
|---|
| Aviation facilities | — | Hangar and helipad[source] |
|---|