Indonesian Navy 98-metre OPV, KRI Lukas Rumkorem (392). Indonesian MoD picture.

Naval News reports Indonesia is completing two new 321 foot Offshore Patrol Vessels that are equipped like light frigates,

The Indonesian Navy (TNI AL) witnessed the launch of two of its future offshore patrol vessels (OPVs)…The first vessel, KRI Raja Haji Fisabilillah (391), was launched on September 18, while the second ship, KRI Lukas Rumkorem (392), followed on September 20….the two identical OPVs have a length of 98 metres and a width of 13.5 metres. The ships are capable of reaching a maximum speed of 28 knots, with a cruising speed of 20 knots.

“TNI AL revealed that both OPVs would be armed with Leonardo 76mm and 40mm guns, Escribano 20mm guns, Roketsan 2×4 Surface to Surface Missile Launcher System, and torpedo launchers.” (I added link found in this quote–Chuck)

These ships look like a Damen design, but there is no indication that is the case, and it doesn’t correspond to any of Damen’s designs. Indonesia has two classes of Damen designed warships, four corvettes and two light frigates, that may have influenced the design.

Wikipedia reports the ships are powered by four diesel engines. These are the same type of 7,280 kW (9,760 hp) MTU/Fairbanks Morse 16V28/33D STC diesel engines used in the Offshore Patrol Cutter (OPC). The Indonesian OPVs use four engines while the OPC uses only two.

Significantly the anti-ship cruise missiles are from Turkey rather than China, a previous supplier.

Indonesian 45.5 meter Patrol Vessels KRI Butana and KRI Selar. TNI AL picture.

The Naval News report also indicates that Indonesia has also recently acquired two 149 foot vessels similar to the Fast Response Cutters (pictured above).

“…on September 5, the service welcomed two new PC-40-class patrol boats, KRI Butana (878) and KRI Selar (879) …Armed with MSI-DS Seahawk LW30M guns (the 30mm Mk38 Mod4 in US service–Chuck), the two PC-40 vessels…are 45.5 metres long and 7.9 metres wide. They can achieve a maximum speed of 24 knots and a cruising speed of 17 knots…each with a crew of 35…”