Hawaii Undersea Research Laboratory (HURL) photo shows a submerged Japanese I-400 submarine discovered off the coast of Oahu, Hawaii in August 2013. Scientists plumbing the Pacific Ocean off the ... more 
Hawaii Undersea Research Laboratory (HURL) photo shows a submerged Japanese I-400 submarine discovered off the coast of Oahu, Hawaii in August 2013. Scientists plumbing the Pacific Ocean off the Hawaii coast have discovered a World War Two era Japanese submarine, a technological marvel that had been preparing to attack the Panama Canal before being scuttled by U.S. forces. The 400-foot (122-meter) "Sen-Toku" class vessel - among the largest pre-nuclear submarines ever built - was found in August off the southwest coast of Oahu and had been missing since 1946, scientists at the University of Hawaii at Manoa said. The I-400 and its sister ship, the I-401, which was found off Oahu in 2005, were able to travel one and a half times around the world without refuelling and could hold up to three folding-wing bombers that could be launched minutes after resurfacing, the scientists said. REUTERS/Courtesy NOAA HURL archives/Handout (UNITED STATES - Tags: MILITARY EDUCATION SCIENCE TECHNOLOGY) FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. IT IS DISTRIBUTED, EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS less 
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Reuters | Photo By HANDOUT / REUTERS
Tue, Dec 3, 2013 11:12 AM EST