Aviation & Aerospace - Airpower 2024 - Aircraft by Country - Aircraft Manufacturers Vehicles & Artillery - Armor 2024 - Armor by Country - Armor Manufacturers Infantry Small Arms - Warfighter 2024 - Small Arms by Country - Arms Manufacturers Warships & Submarines - Navies 2024 - Ships by Country - Shipbuilders U.S. Military Pay 2024 Military Ranks Special Forces by Country

ROKS Dosan Ahn Chang-ho (SS-083)

Diesel-Electric Ballistic Missile Submarine

South Korea | 2020

"ROKS Dosan Ahn Chang-ho SS-083 forms the lead ship of a new indigenous South Korean Navy diesel-electric attack submarine."

Authored By: Staff Writer | Last Edited: 04/07/2020 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site; No A.I. was used in the generation of this content.
The Republic of Korea Navy (ROKN) is planning on nine boats to make up its new Dosan Ahn Chang-ho-class attack submarine. The four boats - SS-083, SS-085, SS-086, and SS-087 - are being constructed through the efforts of Daewoo Shipbuilding & Marine Engineering (DSME) and Hyundai Heavy Industries (HHI). Building began in 2016 and continues as of this writing (2020).

The lead-ship of the class is ROKS Dosan Ahn Chang-ho (SS-083) which was built by DSME and laid down on May 17th, 2016. She was launched to sea on September 14th, 2018 and remains in active testing (2020). The vessel will be followed by ROKS Son Byong-hi (SS-085), ROKS Yi Dong-nyeong (SS-086), and ROKS Lee Bong-chang (SS-087). The former two are under construction with the latter planned. ROKS Dosan Ahn Chang-ho is expected to be commissioned sometime in 2020.

The class is the culmination of an initiative by the South Korean navy service to produce some twenty-seven attack boats over the course of 35 years beginning in the mid-1990s. With each successive design, more and more locally-sourced technology solutions are being implemented to make a more wholly South Korean product. The boats are also the largest ever undertaken by local industry making them a point of pride for the nation.

As designed, the class has a surfaced displacement of 3,358 tons and a submerged displacement of 3,705 tons. Dimensions include a running length of 83.5 meters, a beam of 9.6 meters, and a draught of 7.62 meters. Power is a diesel-electric arrangement involving 4 x Bumhan Industry PH1 PEM fuel cell systems developing 150 kW each driving a single, low-noise propeller at the rear in typical fashion. Acoustic dampening is used where possible to maintain stealthiness for the boat.

Performance figures include a maximum underwater speed of 20 knots and a top-side speed of 12 knots. Range is 10,000 nautical miles which will help the service maintain protection of the vast South Korean coastline.

The boat's profile is conventional with a blunt, rounded nose, tubular hull, and tapered aft section. the hull sides are noticeably bulged and the conning tower sits ahead of midships. The tower is home to the dive planes as well as the required collection of periscopes, sensors, and communications masts. The tail section of the boat incorporates the multi-bladed propeller unit as well as a cruciform tailplane arrangement.

Aboard is a complement of fifty personnel - making for one relatively compact attack submarine.

Armament includes 6 x 533mm bow-facing torpedo tubes supporting the "Tiger Shark" torpedo fasmily as well as the submarine-launched "Harpoon" anti-ship missile. Beyond this is are six Vertical Launching Systems (VLSs) embedded aft of the conning tower and these house land-attack cruise missiles as well as ballistic missiles as needed.

The series is being constructed across two distinct "batches" known simply as "Batch-I" and "Batch-II". ROKS Dosan Ahn Chang-ho is covered by the former while the remaining three boats are expected to include several improvements to broaden their tactical capabilities - namely in ballistic missile defense and anti-submarine systems to counter the North Korean threat. The result will be a lengthening of the hull by six meters as well as an increase to the VLS cell count from six to ten tubes as well as greater implementation of South Korean technology.

Content ©MilitaryFactory.com; No Reproduction Permitted.
Power & Performance
Those special qualities that separate one sea-going vessel design from another. Performance specifications presented assume optimal operating conditions for ROKS Dosan Ahn Chang-ho (SS-083).
Diesel-electric low-noise powerplant arrangement driving single shaft at stern; 4 x Bumhan Industry PH1 PEM fuel cells developing 200 horsepower each.
12.0 kts
13.8 mph
Surface Speed
20.0 kts
23.0 mph
Submerged Speed
10,002 nm
11,510 miles | 18,524 km
The bow-to-stern, port-to-starboard physical qualities of ROKS Dosan Ahn Chang-ho (SS-083).
273.9 ft
83.48 meters
O/A Length
31.5 ft
9.60 meters
25.0 ft
7.62 meters
Available supported armament and special-mission equipment featured in the design of ROKS Dosan Ahn Chang-ho (SS-083).
6 x 533mm torpedo tubes (supporting "Tiger Shark" torpedoes and "Harpoon" anti-ship missiles).
1 x 6-cell Vertical Launching System (VLS) housing cruise / ballistic land-attack missiles.
Ships-in-Class (4)
Notable series variants as part of the ROKS Dosan Ahn Chang-ho (SS-083) family line as relating to the Dosan Ahn Chang-ho-class group.
ROKS Dosan Ahn Chang-ho (SS-083); ROKS Son Byong-hi (SS-085); ROKS Yo Dong-nyeong (SS-086); ROKS Lee Bong-chang (SS-087)
Global operator(s) of the ROKS Dosan Ahn Chang-ho (SS-083). Nations are displayed by flag, each linked to their respective national naval warfare listing.
National flag of South Korea

[ South Korea ]
1 / 1
Image of the ROKS Dosan Ahn Chang-ho (SS-083)
Image copyright www.MilitaryFactory.com; No Reproduction Permitted.

Mission Roles
Some designs are single-minded in their approach while others offer a more versatile solution to seaborne requirements.
Some designs stand the test of time while others are doomed to never advance beyond the drawing board; let history be their judge.
Going Further...
ROKS Dosan Ahn Chang-ho (SS-083) Diesel-Electric Ballistic Missile Submarine appears in the following collections:
Disclaimer | Privacy Policy | Cookies

2024 Military Pay Scale Military Ranks U.S. DoD Dictionary Conversion Calculators Military Alphabet Code Military Map Symbols US 5-Star Generals WW2 Weapons by Country

The "Military Factory" name and MilitaryFactory.com logo are registered ® U.S. trademarks protected by all applicable domestic and international intellectual property laws. All written content, illustrations, and photography are unique to this website (unless where indicated) and not for reuse/reproduction in any form. Material presented throughout this website is for historical and entertainment value only and should not to be construed as usable for hardware restoration, maintenance, or general operation. We do not sell any of the items showcased on this site. Please direct all other inquiries to militaryfactory AT gmail.com. No A.I. was used in the generation of this content.

Part of a network of sites that includes Global Firepower, WDMMA.org, WDMMW.org, and World War Next.

©2024 www.MilitaryFactory.com • All Rights Reserved • Content ©2003-2024 (21yrs)