This article belongs to the lore of Kali Yuga.

Virgen-class submarine

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Virgen-class submarine
Portuguese navy submarine NRP Tridente (S 160) arrives at Naval Station Norfolk.jpg
Class overview
Builders: Arana Industria
Operators:  Carlosian Navy
Cost:
  • 275.5 million (FY2024)
  • ($598.9 million)
Built: 2004–2023
In commission: 2006–present
Planned: 18
Completed: 18
Active: 18
General characteristics
Type: Attack submarine
Speed:
  • 20 kn (37 km/h; 23 mph) submerged
  • 12 kn (22 km/h; 14 mph) surfaced
  • 8 kn (15 km/h; 9 mph) AIP
Range: 22,000 km (11,879 nmi; 13,670 mi) at 8 kn (15 km/h; 9 mph)
Endurance: 42 days underwater, without snorkeling
Test depth: 350 m (1,148 ft)
Armament:
  • 8 × 533 mm torpedo tubes
  • 1 × 4 R59 Maris launcher

The Virgen-class are a class of conventionally-powered attack submarines built by Arana Industria for the Carlosian Navy. Construction began in 2004 with the flagship, CN Virgen (SSI-587), and concluded with CN Eloriaga (SSI-605) in 2023. The first boats entered service in 2006. It is primarily designed for operations near the Carlosian mainland. Complementing the larger, nuclear-powered Mendata-class, they are equipped with diesel propulsion, as well as an air-independent propulsion (AIP) system utilising polymer-electrolyte membrane (PEM) compressed hydrogen fuel cells. This allows boats of the class to operate at high speeds under diesel power, or cruise silently at low-speed using the AIP system. It can stay underwater without snorkeling for six weeks. Combined with its non-magnetic negligible exhaust emissions and lack of moving parts in an AIP system, it is incredibly stealthy.

In 2024 the Carlosian Navy expressed interest in ordering a second block of Virgen-class submarines, citing increased tensions in the Musgorocian Ocean.