Bung Tomo-class corvette

All three corvettes docked at James Fisher Marine Services Barrow, Barrow-in-Furness, United Kingdom
Class overview
Builders:	BAE Systems Marine
Operators:	Royal Brunei Navy (former)  Indonesian Navy (TNI-AL)
Preceded by:	Diponegoro-class
Completed:	3
Active:	3
General characteristics
Type:	F2000 corvette
Displacement:	1,940 tonnes
Length:	89.9 m (295 ft) LWL, 95 m (312 ft) LOA
Beam:	12.8 m (42 ft)
Draught:	3.6 m (12 ft)
Propulsion:	4 × MAN B&W / Ruston diesel engine (total of 30.2 MW) 2 × shafts
Speed:	30 knots (56 km/h)
Range:	5,000 nautical miles (9,000 km) at 12 knots (22 km/h)
Complement:	79 (room for an additional 24)
Sensors and processing systems:	Ultra Electronics/Radamec Series 2500 electro-optic weapons director. Thales Underwater Systems TMS 4130C1 hull-mounted sonar. BAE Systems Insyte AWS-9 3D E- and F-band air and surface radar. BAE Insyte 1802SW I/J-band radar trackers. Kelvin Hughes Type 1007 navigation radar. Thales Nederland Scout radar for surface search. Thales Sensors Cutlass 242 countermeasures.
Armament:	1 × Oto Melara 76 mm 2 × DS 30B REMSIG 30 mm guns 16 × VLS for MBDA Seawolf 2 × 4 Exocet MM40 Block II missile launchers. 2 × triple BAE Systems 324-millimetre (13 in) torpedo tubes.
Aircraft carried:	1 x Eurocopter AS565 Panther
Aviation facilities:	Flightdeck, no hangar

The Bung Tomo class is a class of three Indonesian multi role patrol corvettes. They were originally built for the Royal Brunei Navy and named Nakhoda Ragam-class corvettes but were ultimately bought by Indonesia and renamed. The class is named after Bung Tomo, a noted leader of Indonesia's independence movement.

The three vessels were built by BAE Systems Marine (now BAE Systems Maritime - Naval Ships). The contract was awarded to GEC-Marconi in 1995 and the ships, a variant of the F2000 design, were launched in January 2001, June 2001 and June 2002 at the then BAE Systems Marine yard at Scotstoun, Glasgow. The customer refused to accept the vessels and the contract dispute became the subject of arbitration. When the dispute was settled in favour of BAE Systems, the vessels were handed over to Royal Brunei Technical Services in June 2007.

In 2007, Brunei contracted the German Lürssen shipyard to find a new customer for the three ships; in November 2012, it was announced that Indonesia had signed a memorandum of understanding with Britain to acquire the vessels for one-fifth of the original unit cost. The ships are now in service with the Indonesian Navy.

The ships were originally armed with MBDA Exocet Block II anti-ship missiles and MBDA Seawolf air defence missiles. The main gun is an Oto Melara 76 mm; the ship also carries two torpedo tubes, two 30 mm remote weapon stations and has a landing spot for a helicopter.

In late December 2014, KRI Bung Tomo was involved in search and recovery operations of the Indonesia AirAsia Flight 8501 which crashed off the Java Sea between the islands of Belitung and Borneo. Later in early January 2015, KRI Usman Harun was deployed to search for the black boxes as the ship is equipped with the Thales Underwater Systems TMS 4130C1 hull-mounted sonar.