Bay-class patrol boat vs Jacinto-class patrol vessel

FORCETALLY

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Bay-class patrol boat — licensed reference photograph

APatrol & mine warfare vessels

Bay-class patrol boat

Patrol boat

Credit

Ken Hodge · CC BY 2.0 · Resized · CC BY 2.0 · Source ↗ · Modified

BPatrol & mine warfare vessels

Jacinto-class patrol vessel

Offshore Patrol Vessel

First system

Second system

At a glance

Side by side

Length comparisonOne shared metre scale

Bay-class patrol boatLength

38.2 m

Length source ↗

Jacinto-class patrol vesselLength

62.6 m

Length source ↗

Lengths retain their source configuration and measurement scope.

Bay-class patrol boatlarger figure on 0 of 2

None

Jacinto-class patrol vessellarger figure on 2 of 2

Length+64%
Beam+39%

Counts only measures both sources give with the same scope. A larger figure is not a better system.

Measured figures

Head to head

15 of 27 rows sourced on both sides

38.2m

62.6m

Length+64%

All recorded figures & sources

38.2 m

Length

Single source

38.2 m (125 ft 4 in)^[source]

62.6 m

Length

Single source

Configuration

Details

Bay-class patrol boat and Jacinto-class patrol vessel configuration
Specification	Bay-class patrol boat	Jacinto-class patrol vessel
Displacement	134 tons^[source]	712 tons full load 664 tons standard^[source]
Name	Bay class^[source]	Jacinto class^[source]
Builders	Austal^[source]	Hall, Russell & Company^[source]
Operators	Australian Border Force Marine Unit Sri Lanka Navy Malaysian Maritime Enforcement Agency^[source]

In service	1999–present^[source]	—

Completed	8^[source]	—

Active	2^[source]	3^[source]

Retired	6^[source]	—

Type	Patrol boat^[source]	Offshore Patrol Vessel^[source]

Propulsion	2 × MTU 16V 2000 M70 diesel engines 1 VosperThornycroft bow thruster^[source]	—

Boats & landing craft carried	2 × Wiltrading Pursuit 640 vessels (USLC-2C Survey)^[source]	2 × Avon Searaider 5.4m 30 knots (56 km/h) 10-man Semi-rigid boat aft^[source]

Sensors & processing systems	Radar: Surface search: Racal Decca; E/F and I bands Sonar: Wesmar SS 390E dipping sonar^[source]	Hull 35 : 9LV Mk4 Compact Combat Management System by Saab Sea Eagle X & S bands Surface Search & Navigation Radars by GEM Elettronica EOS-500 Electro-Optical Tracking/Fire Control System by Saab Hull 36 & 37 : Ultra Electronics Fire Control System Sharpeye™ X & S-band Surface Search & Navigation Radars by Kelvin Hughes Series-1700 Electro-Optical Tracking System by Ultra Electronics^[source]

Armament	1 × 7.62 mm general purpose machine gun^[source]	1 × OTO Melara 76/62C (Compact) 76mm/L62 DP autocannon 1 × DS25 DefenceSeahawk 25mm cannon RCWS by MSI Defence Systems 2 × Mk.16 20mm cannons on Mk.68 mount 2 × M2 Browning 12.7mm (50cal) heavy machine guns^[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	—

Preceded by	—	Rizal -class corvette^[source]

Succeeded by	—	Rajah Sulayman -class offshore patrol vessel^[source]

Built	—	1982^[source]

In commission	—	1997 – present^[source]

Armor	—	Belted steel^[source]

Source measurement	—	The ships under this class are characterized by a low freeboard , an Oto Melara 76 mm gun turret located forward, a large single funnel stack amidships, and a crane and two rigid-hulled inflatable boats (RHIB) aft.^[source]Jacinto-class patrol vessel · Technical details; only the objects and conditions stated in this passage The Oto Melara 76 mm Compact DP (Dual Purpose) gun is the primary weapon and is mounted in a turret forward of the bridge . It has a range of up to 10 nautical miles (20 km) and can be used against ships, aircraft or ground targets. It is remotely controlled from within the Combat Information Center by the gunnery officer and has no crew within the turret itself. The gun can fire 80 rounds in 60 seconds from its ready magazine , and the ships can carry a total of 450 rounds.^[source]Jacinto-class patrol vessel · Technical details; only the objects and conditions stated in this passage The secondary weapon (located at the stern) is a M242 Bushmaster 25 mm cannon in an MSI Defense System DS-25 Seahawk A1 mount.^[source]Jacinto-class patrol vessel · Technical details; only the objects and conditions stated in this passage In addition to the abovementioned guns, these ships also carry two 12.7 mm 50 caliber heavy machine guns at the bridgewings, two 20 mm Mark 16 guns on Mk.68 mounts at midships, and two 50 mm rocket flare projectors.^[source]Jacinto-class patrol vessel · Technical details; only the objects and conditions stated in this passage The ships are powered by two APE- Crossley SEMT-Pielstick diesels (14,188 bhp combined) driving two three-bladed propellers . It has a drop down loiter engine with a shrouded prop of 181 bhp (135 kW) used to keep station and save fuel. The main engines can propel the 664 ton (712 tons full load) ship at over 28 knots (52 km/h), with a sustained speed of 25 knots (46 km/h). Its range is 2,500 nautical miles (4,630 km) at 17 knots (31 km/h).^[source]Jacinto-class patrol vessel · Technical details; only the objects and conditions stated in this passage Each ship carries two Avon Searaider 5.4-metre (18 ft), 30-knot (56 km/h; 35 mph), 10-man RHIB.^[source]Jacinto-class patrol vessel · Technical details; only the objects and conditions stated in this passage Upon entry with the Philippine Navy, additional refits were made to replace the four (4) 7.62mm machine guns with two (2) .50 caliber heavy machine guns and two 20 mm Mk.16 cannons. There are plans to add anti-ship missiles to the ships, but due to top-weight problems, it would have to be a lightweight system such as Sea Skua , although no missiles have been ordered to date.^[source]Jacinto-class patrol vessel · Upgrades; only the objects and conditions stated in this passage Phase 1 involves the upgrade of the ship's command & control, surveillance, and fire control systems, and was awarded to British defense contractor QinetiQ. It involved the installation of a new MSI Defence DS-25 Seahawk A1 AUTSIG mount with M242 Bushmaster 25mm naval gun, a new Fire Control System and Radamec's 1500 Series electro-optical tracking system (EOTS), Raytheon gyro compass, Sperry Marine Naval BridgeMaster E Series Surface Search Radar, GPS , anemometer, and EM logs. All these were integrated with the ship's existing systems. The Phase 1 upgrade was completed in 2005.^[source]Jacinto-class patrol vessel · Upgrades; only the objects and conditions stated in this passage Phase 3 was originally a Service Life Extension Program (SLEP). But this was later changed to Combat System Alignment project to improve the combat capability of the patrol vessels. It involves replacing the existing EO/IR and fire control system with a newer system and a Command and Control (C2) module, repairing the 76mm Oto Melara Compact and 25mm Bushmaster gun on MSI Defence Seahawk mount, and other relevant upgrades.^[source]Jacinto-class patrol vessel · Upgrades; only the objects and conditions stated in this passage

Source measurement

—

The ships under this class are characterized by a low freeboard , an Oto Melara 76 mm gun turret located forward, a large single funnel stack amidships, and a crane and two rigid-hulled inflatable boats (RHIB) aft.^[source]Jacinto-class patrol vessel · Technical details; only the objects and conditions stated in this passage

The Oto Melara 76 mm Compact DP (Dual Purpose) gun is the primary weapon and is mounted in a turret forward of the bridge . It has a range of up to 10 nautical miles (20 km) and can be used against ships, aircraft or ground targets. It is remotely controlled from within the Combat Information Center by the gunnery officer and has no crew within the turret itself. The gun can fire 80 rounds in 60 seconds from its ready magazine , and the ships can carry a total of 450 rounds.^[source]Jacinto-class patrol vessel · Technical details; only the objects and conditions stated in this passage

The secondary weapon (located at the stern) is a M242 Bushmaster 25 mm cannon in an MSI Defense System DS-25 Seahawk A1 mount.^[source]Jacinto-class patrol vessel · Technical details; only the objects and conditions stated in this passage

In addition to the abovementioned guns, these ships also carry two 12.7 mm 50 caliber heavy machine guns at the bridgewings, two 20 mm Mark 16 guns on Mk.68 mounts at midships, and two 50 mm rocket flare projectors.^[source]Jacinto-class patrol vessel · Technical details; only the objects and conditions stated in this passage

The ships are powered by two APE- Crossley SEMT-Pielstick diesels (14,188 bhp combined) driving two three-bladed propellers . It has a drop down loiter engine with a shrouded prop of 181 bhp (135 kW) used to keep station and save fuel. The main engines can propel the 664 ton (712 tons full load) ship at over 28 knots (52 km/h), with a sustained speed of 25 knots (46 km/h). Its range is 2,500 nautical miles (4,630 km) at 17 knots (31 km/h).^[source]Jacinto-class patrol vessel · Technical details; only the objects and conditions stated in this passage

Each ship carries two Avon Searaider 5.4-metre (18 ft), 30-knot (56 km/h; 35 mph), 10-man RHIB.^[source]Jacinto-class patrol vessel · Technical details; only the objects and conditions stated in this passage

Upon entry with the Philippine Navy, additional refits were made to replace the four (4) 7.62mm machine guns with two (2) .50 caliber heavy machine guns and two 20 mm Mk.16 cannons. There are plans to add anti-ship missiles to the ships, but due to top-weight problems, it would have to be a lightweight system such as Sea Skua , although no missiles have been ordered to date.^[source]Jacinto-class patrol vessel · Upgrades; only the objects and conditions stated in this passage

Phase 1 involves the upgrade of the ship's command & control, surveillance, and fire control systems, and was awarded to British defense contractor QinetiQ. It involved the installation of a new MSI Defence DS-25 Seahawk A1 AUTSIG mount with M242 Bushmaster 25mm naval gun, a new Fire Control System and Radamec's 1500 Series electro-optical tracking system (EOTS), Raytheon gyro compass, Sperry Marine Naval BridgeMaster E Series Surface Search Radar, GPS , anemometer, and EM logs. All these were integrated with the ship's existing systems. The Phase 1 upgrade was completed in 2005.^[source]Jacinto-class patrol vessel · Upgrades; only the objects and conditions stated in this passage

Phase 3 was originally a Service Life Extension Program (SLEP). But this was later changed to Combat System Alignment project to improve the combat capability of the patrol vessels. It involves replacing the existing EO/IR and fire control system with a newer system and a Command and Control (C2) module, repairing the 76mm Oto Melara Compact and 25mm Bushmaster gun on MSI Defence Seahawk mount, and other relevant upgrades.^[source]Jacinto-class patrol vessel · Upgrades; only the objects and conditions stated in this passage