MIguel Malvar Class Corvettes

Philippine Navy ship BRP Cebu (PS-28) off Tabawan Island, 
Tawi-Taw, 27th June 2009
(Under Creative Commons)

The Miguel Malvar class is a class of patrol corvettes in the Philippine Navy, and is considered to be its oldest class of corvettes. Formerly used by the US Navy as Admirable-class minesweepers.

In the Philippine Navy, the vessels after undergoing upgrades and modifications were re-categorized as corvettes.

One ship, the former USN USS Quest (AM-281) was supposedly a member of this class but was converted into a non-combatant Presidential Yacht by the Philippine Navy in 1948 as the RPS Pag-asa (APO-21) which was later renamed as RPS Santa Maria, and as RPS/BRP Mount Samat.

In Active Duty:

1. BRP Miguel Malvar
2. BRP Magat Salamat
3. BRP Sultan Kudarat
4. BRP Cebu
5. BRP Pangasinan
6. BRP Iloilo

General Characteristics

Type:	Patrol Corvette
Displacement:	640 tons (standard), 914 Tons (Full Load)
Length:	184.5 ft (56.2 m)
Beam:	33 ft (10 m)
Draft:	9.75 ft (2.97 m)
Installed power:	2,200 hp
Propulsion:	Main: 2 x GM 12-278A diesel engines Auxiliary: 2 x GM 6-71 diesel engines with 100 kW gen and 1 x GM 3-268A diesel engine with 60 kW gen
Speed:	16 Knots (maximum),
Range:	6,600 nmi at 11 knots (20 km/h)
Complement:	85
Sensors and processing systems:	SPS-50 Surface Search Radar (on PS-23) SPS-21D Surface Search Radar (on PS-19 and PS-28) CRM-NIA-75 Surface Search Radar (on PS-29, PS-31, and PS-32) SPS-53A Surface Search Radar (on PS-20) RCA SPN-18 I/J-band Navigation Radar [2]
Armament:	1 x 3"/50 caliber gun (76 mm) Mk22 2 to 6 Bofors 40 mm gun (single or 1-3 twin) 3 × 20 mm Oerlikon guns 4 x 12.7 mm 50 cal machine guns

Source:

Wikipedia - Gen. Miguel Malvar Corvettes

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Rizal Class Corvettes

Rizal Class Corvettes in a Philippine Naval Exercise
(In Public Domain)

The Rizal class is a ship class of two patrol corvettes currently in service in the Philippine Navy, and its largest class of corvettes.  

These ships were formerly used by the US and Royal Navy as Auk class minesweepers during the Second World War.   In total, there were a recorded 95 Auk class minesweepers under Allied command during that time.  

Thirty-two minesweepers were ordered by the US (as BAM-1 to 32) intending them to be supplied to the Royal Navy under "Lend-lease", but 12 were retained for USN use and given names and "AM" hull classification prefix while those transferred were given "J" pennant number prefixs which formed the Catherine class.  

After the war, some of these ships found their way in to US Navy researve units. Until in the 60's , under the US Military Assistance Program, two of which were transfered to the Philippines.  These were: USS Murrelet in 1965 (renamed BRP Rizal); and USS Vigilance  in 1967 (renamed BRP Quezon).

When these ships were transfered to the Philipiine Navy, the two vessels have undergone upgrades and modification, and were categorized as corvettes.

In Service:

• BRP Quezon (PS -70)
• BRP Rizal (PS - 74)

General Characteristics

Class and type:	Rizal class
Type:	Patrol Corvette
Displacement:	1,090 tons standard, 1,250 tons full load
Length:	221.67 ft (67.57 m)
Beam:	32.67 ft (9.96 m)
Draft:	10.75 ft (3.28 m)
Installed power:	5,800 shp (4,300 kW)
Propulsion:	2 x GM EMD 16V-645E6 Diesel Engines
Speed:	18 knots (33 km/h) maximum
Range:	5,000 nmi (9,300 km) at 14 knots (26 km/h)
Complement:	80
Sensors and processing systems:	Raytheon SPS-5C G/H-band Surface Search Radar DAS 3 I-band Navigation Radar SQS-17B hull-mounted Sonar (high frequency) Mk52 GFCS for 3"/50 guns Mk51 GFCS for 40 mm guns[1]
Armaments:	2 × 3"/50 caliber gun Mk26 dual purpose guns 2 × Twin Bofors 40 mm gun 2 x Twin 20 mm Oerlikon guns 4 x 50 caliber machine guns

Source:

1. Wikipedia - Rizal Class Corvettes

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Jacinto Class Corvettes

BRP Apolinario Mabini PS-36
(Creative Commons, http://en.wikipedia.org/wiki/File:Philippine_Navy_PS-36_at_Balikatan_2010-1.jpg)

The Jacinto class is a ship class of three patrol corvettes currently in service with the Philippine Navy. The ships formerly served in the Royal Navy's Hong Kong Squadron as Peacock class patrol vessels until 1997.

BRP Emilio Jacinto (PS-35)
(Creative Commons, http://en.wikipedia.org/wiki/File:BRP_Emilio_Jacinto_PS-35.jpg) 

Launched as a series of five patrol vessels, the Peacock class were originally part of the Hong Kong Squadron of the Royal Navy. The ships were built by Hall Russell in the United Kingdom and were commissioned into Royal Navy service from 1983 to 1984. The class was designed specifically for patrol duties in Hong Kong waters. As well as "flying the flag" and providing a constant British naval presence in the region. 

BRP Artemio Ricarte (PS-37)
(Creative Commons, http://en.wikipedia.org/wiki/File:BRP_Artemio_Ricarte_PS37.jpg)

As a sign of goodwill, three of these ships: HMS Peacock (P239); HMS Plover (P240), and HMS Starling (P241) were sold to the Philippines, and were officially turned over to the Philippine Navy in 1997, when the United Kingdom transfered the sovereignty of Hong Kong  to the People's Republic of China

The three vessels that were transfered have undergone weapons, electronics, propulsion and hull upgrades in Philippine Navy service, increasing their capabilities as compared to the original Peacock class vessels.

Ships in Class

• BRP Emilio Jacinto
• BRP Aplolinario Mabini
• BRP Artemio Ricarte

General Characteristics:

Type:	Patrol Corvette
Displacement:	712 tons full load
Length:	205.4 ft (62.6 m)
Beam:	32.8 ft (10.0 m)
Draft:	8.9 ft (2.7 m)
Installed power:	14,188 hp (10,580 kW)
Propulsion:	2 x APE-Crossley SEMT-Pielstick 18 PA6 V 280 Diesel engines 2 x shafts 1 x Schottel S103 LSVEST drop-down, shrouded loiter retractable propeller, 181 shp (135 kW)
Speed:	25 knots (46 km/h) (sustained)
Range:	2,500 nmi (4,600 km) at 17 knots (31 km/h)
Boats and landing craft carried:	2 x Avon Searaider 5.4m 30 knots (56 km/h) 10-man Semi-rigid boat aft
Complement:	31
Sensors and processing systems:	Sperry Marine Naval BridgeMaster E Series Surface Search Radar Kelvin Hughes Type 1006 Navigation Radar Ultra Electronics Command and Control System Radamec 1500 Series 2500 Electro-Optical Tracking/Fire Control System
Armament:	1 × Oto Melara 76 mm Compact DP gun 1 x 25 mm M242 Bushmaster on MSI Defence Seahawk mount 2 × 20 mm Mk. 16 cannons on Mk.68 mounts 2 × M2 Browning 12.7 mm/50 caliber machine guns
Armor:	Belted Steel

Source:

1. Wikipedia - Jacinto Class Corvettes 

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