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A klaxon is a type of an electromechanical horn or alerting device. Mainly used on cars, trains and ships, it produces an easily identifiable sound, often transcribed onomatopoeically in English as "awooga". Like most mechanical horns, it has largely been replaced by solid-state electronic alarms, though the memorable tone has persisted.
Massaro (who later became sergeant major of the Marine Corps) and other Marines who trained aboard the USS Perch submarine, beginning in 1949, used oorah in imitation of the vessel's klaxon horn (which sounded like arrugah). [1]
The Mark 27 torpedo was the first of the United States Navy 19-inch (48-cm) submarine-launched torpedoes. [2] This electrically-propelled torpedo was 125 inches (3.175 m) long and weighed 1174 pounds (534 kg). [2] The torpedo employed a passive acoustic guidance system and was intended for both submarine and surface targets. [2]
USS California (SSN-781), is the eighth Virginia-class submarine, and the seventh United States Navy ship named for the state of California. The contract to build her was awarded to Newport News Shipbuilding (then called Newport News Shipbuilding & Drydock Co.) in Newport News, Virginia, on 14 August 2003. Construction began in December 2006. [7]
Electrical Klaxon horn in 1910. Hutchison was concerned with increased automobile traffic in New York City. An early version of a vehicle speed alarm was not readily adopted. [12] Warning devices at the time were either bells or horns essentially derived from musical instruments. He realized that a more obnoxious sound would serve as a better ...
The first submarine decoys were the German Bold fitted to U-boats of World War II. These were a pellet of calcium hydride in a simple metal container. On contact with sea water, the calcium hydride decomposed to produce a trail of hydrogen gas bubbles that acted as a bubble curtain and reflected ASDIC impulses to produce a false target. The ...
USS South Dakota (SSN-790), is a nuclear powered Virginia-class submarine in service with the United States Navy.The contract to build her was awarded to Huntington Ingalls Industries in partnership with the Electric Boat division of General Dynamics in Newport News, Virginia on 22 December 2008.
The Mark XVII using new switch horn triggers was an evolution from the previous Hertz horn based contact mines, which entered service in 1917 during World War I. [1] The Hertz horn triggers in British naval mines had been copied from German World War I contact naval mines whose Hertz horn triggers were more reliable than their British equivalents.