Intro
Discover the USS South Dakota, the US Navys most advanced and stealthiest submarine. Learn about its cutting-edge design, advanced sensors, and combat capabilities, making it a game-changer in naval warfare. Explore its silent propulsion, advanced sonar, and lethal payload, and find out why its the most feared submarine in the world.
The United States Navy has a long history of developing and deploying advanced submarines to support its naval operations. One of the most impressive and stealthy submarines in the US Navy's arsenal is the USS South Dakota (SSN-790). In this article, we will delve into the details of this incredible vessel, exploring its design, capabilities, and operations.
Introduction to the USS South Dakota

The USS South Dakota is a Virginia-class attack submarine, commissioned in 2019. It is the 17th submarine of its class and is homeported at Naval Station Norfolk in Virginia. The Virginia-class submarines are designed to conduct a variety of missions, including anti-submarine warfare, anti-surface warfare, and special operations.
Design and Construction

The USS South Dakota was built by Huntington Ingalls Industries at its Newport News Shipbuilding facility in Virginia. The submarine's design is based on the Virginia-class submarines, which feature a modular construction approach. This approach allows for the rapid integration of new technologies and systems, reducing the time and cost associated with traditional submarine construction methods.
The USS South Dakota measures 377 feet (114.9 meters) in length and 34 feet (10.4 meters) in beam, with a draft of 29.5 feet (9 meters). It has a displacement of approximately 7,800 tons and is powered by a nuclear reactor, which provides the energy needed to propel the submarine through the water.
Capabilities and Systems

The USS South Dakota is equipped with a range of advanced systems and capabilities, including:
- A nuclear reactor, which provides the energy needed to power the submarine's systems and propulsion
- A silent propulsion system, which allows the submarine to operate undetected
- Advanced sensors and sonar systems, which enable the submarine to detect and track targets
- A vertical launch system (VLS), which allows the submarine to launch missiles and other ordnance
- A torpedo room, which houses the submarine's torpedo arsenal
Advanced Sensors and Sonar
The USS South Dakota is equipped with advanced sensors and sonar systems, which enable the submarine to detect and track targets in its surroundings. The submarine's sensors include:- Active and passive sonar systems, which allow the submarine to detect and track targets using sound waves
- Radar systems, which provide the submarine with information about its surroundings
- Electronic support measures (ESM), which allow the submarine to detect and track electromagnetic signals
Vertical Launch System (VLS)
The USS South Dakota is equipped with a VLS, which allows the submarine to launch missiles and other ordnance. The VLS is a modular system that can be used to launch a variety of different missiles and ordnance, including:- Tomahawk land-attack missiles
- Harpoon anti-ship missiles
- Mk 48 Advanced Technology (ADCAP) torpedoes
Operations and Missions

The USS South Dakota is designed to conduct a variety of missions, including:
- Anti-submarine warfare (ASW), which involves detecting and tracking enemy submarines
- Anti-surface warfare (ASuW), which involves detecting and tracking enemy surface ships
- Special operations, which involve conducting clandestine or covert operations
- Intelligence, surveillance, and reconnaissance (ISR), which involve gathering information about enemy forces and movements
Anti-Submarine Warfare (ASW)
The USS South Dakota is equipped with advanced sensors and sonar systems, which enable it to detect and track enemy submarines. The submarine's ASW capabilities include:- Active and passive sonar systems, which allow the submarine to detect and track targets using sound waves
- Torpedo systems, which allow the submarine to attack enemy submarines
Anti-Surface Warfare (ASuW)
The USS South Dakota is equipped with advanced sensors and sonar systems, which enable it to detect and track enemy surface ships. The submarine's ASuW capabilities include:- Radar systems, which provide the submarine with information about its surroundings
- Harpoon anti-ship missiles, which allow the submarine to attack enemy surface ships
Stealth and Survivability

The USS South Dakota is designed to be highly stealthy and survivable, with a range of features and systems that enable it to operate undetected and avoid enemy detection. The submarine's stealth and survivability features include:
- A silent propulsion system, which allows the submarine to operate undetected
- Advanced sensors and sonar systems, which enable the submarine to detect and track targets
- A VLS, which allows the submarine to launch missiles and other ordnance without being detected
Silent Propulsion System
The USS South Dakota is equipped with a silent propulsion system, which allows the submarine to operate undetected. The silent propulsion system uses advanced materials and design techniques to reduce the submarine's noise signature, making it more difficult for enemy forces to detect.Advanced Sensors and Sonar
The USS South Dakota is equipped with advanced sensors and sonar systems, which enable the submarine to detect and track targets. The submarine's sensors include:- Active and passive sonar systems, which allow the submarine to detect and track targets using sound waves
- Radar systems, which provide the submarine with information about its surroundings
Gallery of USS South Dakota
USS South Dakota Image Gallery










Frequently Asked Questions
What is the USS South Dakota's primary mission?
+The USS South Dakota's primary mission is to conduct anti-submarine warfare, anti-surface warfare, and special operations.
What is the USS South Dakota's top speed?
+The USS South Dakota's top speed is over 25 knots (29 mph).
How many crew members does the USS South Dakota have?
+The USS South Dakota has a crew of approximately 130 sailors.
We hope this article has provided you with a comprehensive overview of the USS South Dakota, one of the stealthiest submarines in the US Navy's arsenal. The USS South Dakota is an incredible vessel, with advanced sensors, sonar systems, and stealth capabilities that make it a formidable opponent in the world of naval warfare. Whether you are a military enthusiast or simply interested in learning more about the US Navy's submarines, we hope this article has been informative and engaging.