Military Factory logo
Icon of F-15 Eagle military combat fighter aircraft
Icon of Abrams Main Battle Tank
Icon of navy warships
Icon of AK-47 assault rifle

CS O'Higgins (SS23)

Diesel-Electric Attack Submarine

CS O'Higgins SS23 is a Chilean Navy diesel-electric attack submarine born from the export-minded, French-and-Spanish-built Scorpene-class.
Authored By: Staff Writer | Edited: 5/2/2019
National Flag Graphic


Year: 2005
Status: Commissioned, in Active Service
Ships-in-Class: 19
Named Ships: CS Carrera (SS-22); CS O'Higgins (SS-23); KD Tunku Abdul Rahman (Malaysia); KD Tun Abdul Razak (Malaysia); Unnamed Indian Navy (S50); Unnamed Indian Navy (S51); Unnamed Indian Navy (S52); Unnamed Indian Navy (S53); Unnamed Indian Navy (S54); Unnamed Indian Navy (S55); Riachuelo (S40) (Brazil); Humaita (S41) (Brazil); Tonelero (S42) (Brazil); Angostura (S43) (Brazil)
Roles: Hunter; Direct-Attack;
Complement: 31
Length: 218 ft (66.45 m)
Width: 20 ft (6.10 m)
Height: 19 ft (5.79 m)
Displacement (Surface): 1,668 tons
Propulsion: Diesel-Electric Propulsion; Battery service for submerged travel; 1 x Shaft.
Speed (Surface): 20 kts (23 mph)
Range: 5,648 nm (6,500 miles; 10,461 km)
Operators: Chile
CS O'Higgins (SS23) is one of two Scorpene-class diesel-electric attack submarines fielded by the nation of Chile (the other being CS General Carrera SS22 detailed elsewhere on this site). O'Higgins was laid down on November 18th, 1999 and launched on November 3rd, 2003. She was formally commissioned into the Chilean Navy on September 8th, 2005 and makes her homeport out of Talcahuano. The two boats were ordered by the service to replace a pair of outgoing Oberon-class submarines in the same role.

The Scorpene-class is a boat group developed jointly by engineers of France (DCN) and Spain (Navantia, now DCNS) primarily for export sale. As such, the vessels have been purchased by several foreign parties including Brazil, Chile, Malaysia, and India to supply a modern underwater attack capability augmenting existing ocean-going force strength. Nineteen vessels were originally planned for the group but four have since been cancelled and five having been completed. Seven more are to see commissioning between 2016 and 2021.

The class showcases varying lengths between 200 feet and 230 feet. Beams and draught are consistent at 20 feet and 18 feet respectively. Power is through a diesel-electric arrangement with Air-Independent Propulsion (AIP) in play allowing for maximum speeds reaching 20 knots and ranges out to 6,500 nautical miles. The crew and boat can stay underwater and away from homeport for over a month before requiring refueling and resupply. A typical crew complement is just 31 men. The vessel displaces in the 1,725 ton (short) range.

In terms of armament, the class is appropriately outfitted with 6 x 533mm (21") torpedo launch tubes in the bow. Each boat can carry as many as eighteen reloads and can also fire the French SM.39 Exocet anti-ship missile or deploy up to thirty naval mines in contested waters.


6 x Alenia Whithead Black Shark Torpedoes in bow tube launchers.
Aerospatiale SM39 Exocet anti-ship surface-to-surface missiles.

Air Wing

Site Disclaimer  |  Privacy Policy  |  Cookies  |  Site Map Site content ©2003-, All Rights Reserved.

The "Military Factory" name and 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

Part of a network of sites that includes GlobalFirepower, a data-driven property used in ranking the top military powers of the world, and, the World Directory of Modern Military Aircraft.

Facebook Logo YouTube Logo