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Operation ''Deadlight'' was the code name for the Royal Navy operation to scuttle German U-boats surrendered to the Allies after the defeat of Germany near the end of World War II. Of the 156 U-boats that surrendered to the allies at the end of the war, 116 were scuttled as part of Operation ''Deadlight''. The operation was carried out by the Royal Navy and it was planned to tow the submarines to three areas about 100 miles north-west of Ireland and sink them.〔 The areas were codenamed XX, YY and ZZ.〔 The intention was to use XX as the main area for scuttling while 36 boats would be towed to ZZ for use as targets for aerial attack. YY was to be a reserve position where, if the weather was good enough, submarines could be diverted from XX to be sunk by naval forces.〔 In the case of those submarines not being used as targets, the plan was to sink them via explosive charges, with naval gunfire as a fall-back option if that failed. When Operation ''Deadlight'' was activated, it was found that many of the U-boats were in an extremely poor condition as a result of being moored in exposed harbours while awaiting disposal.〔 Combined with poor weather, this meant that 56 of the boats sank before reaching the designated scuttling areas, and those which did, were generally sunk by gunfire rather than explosive charges.〔 The first sinking took place on 17 November 1945 and the last on 11 February 1946.〔 ==U-boats excluded from Operation ''Deadlight''== Several U-boats escaped Operation ''Deadlight''. Some were claimed as prizes by Britain, France, Norway and the Soviet Union. Four were in East Asia when Germany surrendered and were commandeered by Japan ( was renamed ''I-501'', - ''I-506'', - ''I-505'', - ''I-502'', and a fifth boat, , had been sold to Japan in 1943 and renamed ''RO-500'').〔 〕 Two U-boats that survived Operation ''Deadlight'' are today museum ships. was earmarked for scuttling, but Rear Admiral Daniel V. Gallery argued successfully that she did not fall under Operation ''Deadlight''. United States Navy Task Group 22.3, under then-Captain Gallery, had captured ''U-505'' in battle on 4 June 1944. Having been captured, not surrendered at the end of the war, she survived to become a war memorial at the Museum of Science and Industry in Chicago. was transferred to Norway by Britain in October 1948 and became the Norwegian ''Kaura''. She was returned to Germany in 1965, to become a museum ship in 1971. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Operation Deadlight」の詳細全文を読む スポンサード リンク
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