The stories have been nothing new, but to actually find one drives up the interest level profoundly. Some years ago, the I-401 was found. The Panama Canal was to be bombed and destroyed by one or more in this series of subs, thus making it impossible for American warships to enter the Pacific, which could’ve changed the tide in the war. Both the I-400 and 401 missions were put to a halt at the last minute via surrenduring when America dropped the nuclear bombs on Imperial Japan and broke their will to fight.
For additional and thorough background information on the I-400, click on the following worthwhile link: The Transpacific Voyagee of H.I.J.M.S. I-400
(CNN) — Researchers in Hawaii have found a mammoth World War II-era Japanese submarine scuttled by the U.S. Navy in 1946 to keep its advanced technology out of the hands of the Soviet Union.
The Hawaii Undersea Research Laboratory at the University of Hawaii discovered the I-400 in 2,300 feet of water off the southwest coast of Oahu, according the school.
“Finding it where we did was totally unexpected,” lab operations director and chief submarine pilot Terry Kerby said in a university statement. “All our research pointed to it being further out to sea.”
Initially conceived as a weapon to target the U.S. mainland and capable of reaching any point on the globe without refueling, the subs were effectively underwater aircraft carriers outfitted with three folding-wing seaplanes capable of carrying an 1,800-pound bomb.
The ships were never used to attack the mainland United States and saw only limited service before Japan surrendered in 1945.
But their novel design represented a tactical shift in thinking about the use of submarines, which until then had been strictly seen as anti-ship weapons, James Delgado, director of the Maritime Heritage Program of the National Oceanic and Atmospheric Administration, said in the university statement.
“Following World War II, submarine experimentation and design changes would continue in this direction, eventually leading to ballistic missile launching capabilities for U.S. submarines at the advent of the nuclear era,” Delgado told the university.
The I-400 was one of five Japanese submarines captured by the U.S. Navy at the end of World War II and sent to Hawaii for examination, the school said.
Full article: Researchers in Hawaii find lost Japanese WWII mega-sub (CNN)