Nagapasa-class submarine

The Nagapasa class is an upgraded variant of the Chang Bogo class, also known as Improved Chang Bogo. The vessels were built by the South Korean Daewoo Shipbuilding & Marine Engineering (DMSE) and the Indonesian PT PAL. As of 2019, six ships has been planned which were divided into two batches, batch 1 consists of three ships and all are already launched or commissioned. Batch 2 also consist of three ships that are in early development stage.[4]

KRI Nagapasa (403)
Class overview
Name: Nagapasa class
Builders:
Operators:  Indonesian Navy
Preceded by: Cakra class
In commission: 2017–present
Planned: 6 [3]
Building: 0
Completed: 3
Active: 2
Laid up: 1
General characteristics
Displacement: 1,400 tons
Length: 61.3 m (201 ft 1 in)
Beam: 6.3 m (20 ft 8 in)
Draft: 5.5 m (18 ft 1 in)
Propulsion: 3,700 kW (5,000 shp)
Speed:
  • 11 knots (20 km/h; 13 mph) surfaced
  • 21.5 knots (39.8 km/h; 24.7 mph) submerged
Range:
  • 11,000 nmi (20,000 km; 13,000 mi) at 10 kn (19 km/h; 12 mph) surfaced,
  • 8,000 nmi (15,000 km; 9,200 mi) at 10 kn (19 km/h; 12 mph) snorkeling,
  • 400 nmi (740 km; 460 mi) at 4 kn (7.4 km/h; 4.6 mph), submerged
Endurance: 50 days
Test depth: 500 m (1,600 ft)
Complement: 33
Armament:

List of boats
Name Hull number Builder Ordered Laid down Launched Commissioned Status
Batch I
Nagapasa 403 DSME 21 December 2011 9 April 2015 24 March 2016 2 August 2017 In active service
Ardadedali 404 DSME, PT PAL 21 December 2011 2014 24 October 2016 25 April 2018 In active service
Alugoro 405 DSME, PT PAL 21 December 2011 11 April 2019 Under sea trials
Batch II

References
  1. Wertheim, Eric (2007). Naval Institute Guide to Combat Fleets of the World: Their Ships, Aircraft, and Systems (Naval Institute Guide to Combat Fleets of the World). US Naval Institute Press. p. 1067. ISBN 978-1-59114-955-2.
  2. Franz-Stefan Gady (2016-03-29). "South Korea Launches First Indonesian Stealth Submarine". The Diplomat. Archived from the original on 2017-05-02.
  3. Rahwat, Ridzwan (12 April 2019). "Indonesia signs USD1 billion contract for three follow-on SSKs to Nagapasa class". Jane's 360. Retrieved 7 February 2020.
  4. Gady, Franz-Stefan (15 April 2019). "Indonesia, South Korea Ink $1 Billion Contract for 3 Diesel-Electric Submarines". The Diplomat. Retrieved 7 February 2020.


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