KRI Nanggala (402)

KRI Nanggala (402) History

KRI Nanggala (402) was an Indonesian Navy submarine commissioned in 1981, known as "Nanggala II." This Cakra-class submarine was constructed in Germany and had a displacement of 1,285 tons on the surface and 1,390 tons underwater. It featured powerful diesel engines, allowing it to reach speeds of 11 knots on the surface and 25 knots underwater, with a range of 9,400 miles. The submarine was equipped with advanced radar, sonar, and electronic warfare systems.

With a crew of approximately 50, including six officers, KRI Nanggala could remain at sea for about 50 days before needing resupply. Its armament included 8 torpedo tubes and 14 torpedoes, and it later gained anti-ship missile capability. Throughout its career, the submarine participated in various naval exercises, patrols, and intelligence-gathering missions.

Tragically, on April 21, 2021, KRI Nanggala was lost during an exercise when it disappeared beneath the ocean's depths. Despite being located by sonar, the submarine was found at a depth greater than its rated capability, resulting in the loss of its entire crew of 53 people. This incident marked a significant and somber moment in the submarine's history.

Specification

Basic

Year of Service: 1981

Origins: Indonesia

Status: No longer on duty.

Crew: 50

Manufacturer: Howaldtswerke-Deutsche Werft - West Germany

Operator: Indonesia

Roles

Underwater Attack

Move subsurface to find, track and/or attack or reconnaissance areas.

Offshore Operations

Nearshore activities in support of Allied activities.

Sea Patrol

Active patrolling of critical waterways and sea areas; also serves as a local deterrent against air and maritime threats.

Fleet Support

Provide support (fire or materiel) to major surface fleets in blue water environments.

Distinctive Features

Rocket Weapons

The ship supports long-range missile launches to air, sea or land-based targets; typical of modern design.

Torpedo

Able to launch torpedoes at distant targets.

Dimensions and Weight

Length: 195.2 feet (59.50m)

Ray: 20.3 feet (6.19m)

Draft: 17.8 feet (5.43m)

Shift: 1,285 t

Power and Performance

Installed Power: 4 x MTU 12V493 AZ80 GA31L 2,400 hp diesel engine, 4 x 2,300 hp Siemens generator and 1 x 4,600 hp Siemens engine; 1 x axle rear.

Surface Velocity: 11 nodes (12.7 km/h)

Underwater speed: 25. 0 nodes (28.8 km/h)

Area: 8,168nm (9,400 miles | 15,128 km)

Weapon

Original: 8 x 533 mm (21 in) bow torpedo tube with 14 torpedo reloads (AEG SUT series).

Added later: Ability to fire anti-ship missiles.