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Silent running is a stealth mode of operation for naval submarines.The aim is to evade discovery by passive sonar by eliminating superfluous noise: nonessential systems are shut down, the crew is urged to rest and refrain from making any unnecessary sound, and speed is greatly reduced to minimize propeller noise.
Operating in stealth mode, they cannot use their active sonar systems to ping ahead for underwater hazards such as undersea mountains, drilling rigs or other submarines. Surfacing to obtain navigational fixes is precluded by pervasive anti-submarine warfare detection systems such as radar and satellite surveillance.
Stealth technology, also termed low observable technology (LO technology), is a sub-discipline of military tactics and passive and active electronic countermeasures. [1] The term covers a range of methods used to make personnel, aircraft , ships , submarines , missiles , satellites , and ground vehicles less visible (ideally invisible ) to ...
Stealth submarine to surface ship. The Sea Shadow featured a catamaran-style design with sharp angular surfaces to optimize stealth. US Navy. Ben Rich, then the director of Lockheed's Skunk Works ...
Typical depth of the drone may be about 50–100 meters (160–330 ft) for increased stealth features in low-speed stealth mode. Low depth in stealth mode is preferred because sound waves move to ocean floor and reduce radius of detection. Submarines use the same strategy in silent running mode. [29]
The Virginia class, or the SSN-774 class, is the newest class of nuclear-powered cruise missile fast attack submarines in service with the United States Navy.The class is designed for a broad spectrum of open-ocean and littoral missions, including anti-submarine warfare and intelligence gathering operations. [10]
German submarine U-480 was an experimental Kriegsmarine Type VIIC U-boat of World War II.. Considered by many to be the first stealth submarine, it was equipped with a special rubber skin of anechoic tiles (codenamed Alberich, after the German mythological character who had the ability to become invisible), that made it difficult to detect with the Allies' ASDIC (sonar).
A stealth ship is a ship that employs stealth technology construction techniques in an effort to make it harder to detect by one or more of radar, visual, sonar, and infrared methods. These techniques borrow from stealth aircraft technology, although some aspects such as wake and acoustic signature reduction ( acoustic quieting ) are unique to ...