OVERVIEW: The Diponegro-class  FFL is 2-shaft, diesel powered Multi-Purpose Guided Missile Corvette intended for  EEZ protection and  Maritime Deterrence.

DETAILS: The Diponegro-class FFL is based on the Sigma 9113 design, and is equipped to perform Maritime Deterrence, ASW, SAR, peace-keeping, antipiracy, counter smuggling and fisheries patrols in the EEZ .  The vessels are equipped with a passive roll stabilization system to improve sea keeping capability.

ASUW capability includes  4x MM-40 Exocet SSM and  1 Oto-Melara 76mm/62 (3in) gun.  AAW capability includes 2x4 MBDA Mistral SR-SAM,, Giat 20mm/90 AA-gun. ASW capability consists of  2x3 324mm torpedo tubes with A244-S torpedo

Self-defense systems include two chaff/flare  launchers and the Thales Scorpion jammer. 

Sensors include a MW-08 3D air and surface surveillance radar and a navigation radar, a Kingklip hull-mounted sonar and Lirod FC radars (+EO).  It has a DR-3000 ESM suite

Aviation facilities include  flight deck for helicopters up to  5 tons.  There is no hanger.  
Small boat capability is two RHIB's,  launched by crane. 

SPECIFICATIONS:
Displacement: 1719 tons (full)
Speed: 28 kts (max)
Engineering: 2x SEMT Pielstick 20PA6B diesels. 2 shafts with cp props. 4 Caterpillar 3460C dieses generators.
Range: 4000 nm @ 18 kts, 4800 nm @ 14 kts
Complement: 80 pax

NOTES:  IOC: 2007.  Units in class: Diponegoro (ex-Gajah Mada) (365); Sultan Hasanuddin (ex-Balaputera)(366); Sultan Iskandar Muda (367); Frans Kaisiepo (368).


SOURCES: MilPer update Mar2011; JFS15/16; "DIPONEGORO Corvettes (2007-2009)." NAVYPEDIA - Fighting Ships of the World. Accessed May 1, 2022. https://navypedia.org/ships/indonesia/ino_es_diponegoro.htm. ; Pike, John. "Diponegoro Class / Sigma Class Corvette." GlobalSecurity.org. Last modified November 9, 2013. https://www.globalsecurity.org/military/world/indonesia/kri-diponegoro.htm. ; "SIGMA-Class Corvettes." Naval Technology. Last modified December 1, 2021. https://www.naval-technology.com/projects/sigma-class-corvettes/.