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...nstructed in 1943 as DE-400. In 1955, the vessel was equipped with modern radars, and the designation was changed to DER-400. The special purpose of DER (D ...oy departed [[Norfolk, Virginia]] 23 March and entered the [[Mediterranean Sea]] without attack. Then near [[Algiers]] the night of 11-12 April the [[Luft

...estroyer escort discovered a surfaced U-boat, ''U-873'', which had been at sea for 50 days. While the submarine began to run, ''Vance'' hailed the erstwhi ...17 days, and the ship maintained a round-the-clock vigil, with air-search radars, tracking and reporting every aircraft entering or approaching the air spac

...equipment located remotely, the single Mark VII and ultimately, with the [[Sea Cat missile]]. ...rolled gun systems until 2008. Until the early 80s L/70 guns guided by D7B radars were in widespread use in the AAA role in the German Navy and Air Force unt

...fleet's available outer defenses). Typically, the acronym is pronounced ''sea-whiz''. A gun based CIWS usually consists of a combination of radars, computers, and multiple rapid-fire medium-calibre guns placed on a rotatin

[[Category:Sea radars]]

.... 15 guns and five Skyguard units were refurbished. 12 guns and 4 Skyguard radars were put into British service operated by the [[Royal Auxiliary Air Force]] ...guns with night vision sight and Used with Skyguard & Super Fledermaus FC radars.

...roduction started in 1978, the first ship fully fitted out was {{USS|Coral Sea|CV-43}} in 1980. The Navy began placing CIWS systems on non-combatant vesse ...nown as IFF. The CIWS has only the data it collects in real time from the radars to decide if the target is a threat and to engage it. A contact has to mee

...s a twin-barreled, powered mount. These were too heavy to be of any use at sea and were therefore mounted ashore. All were scrapped by 1944. ...ed Battleships'', p204, notes that the remaining type 282 and two type 285 radars failed after the first torpedo hit.</ref>. In the same action, the Commissi

Only the RN<ref>Howse, ''Radar at Sea''. [[HMAS Shropshire]], for example, demonstrated complete blindfire contro ...re control system for the 5"/38 DP mount. The [[Royal Navy]] had conducted sea trials of their initial version of the [[HACS|High Angle Control System]] f

...] matrix. The material's efficiency was partially reduced by the action of sea water.<ref>{{cite paper [[fr:Matériau absorbant les ondes émises par les radars]]