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-Short Attention Span Theater-
Giant Japanese WWII sub discovered near Oahu
2005-03-22
Hat tip: Michelle Malkin. Edited for brevity.
The wreckage of a large World War II-era Japanese submarine has been found by researchers in waters off Hawaii. A research team from the University of Hawaii discovered the I-401 submarine Thursday during test dives off Oahu. The submarine is from the I-400 Sensuikan Toku class of subs, the largest built before the nuclear-ballistic-missile submarines of the 1960s. They were 400 feet long and nearly 40 feet high and could carry a crew of 144. The submarines were designed to carry three "fold-up" bombers that could quickly be assembled.

An I-400 and I-401 were captured at sea a week after the Japanese surrendered in 1945. Their mission, which was never completed, reportedly was to use the aircraft to drop rats and insects infected with bubonic plague, cholera, typhus and other diseases on U.S. cities. When the bacteriological bombs could not be prepared in time, the mission reportedly was changed to bomb the Panama Canal. Both submarines were ordered to sail to Pearl Harbor and were deliberately sunk later, partly because Russian scientists were demanding access to them.
I'm inferring from the article that *we* deliberately scuttled the sub after the war, but they don't make it as clear as I'd like.
Posted by:Dar

#4  Looks like this sub (I-401) met the same fate, along with similar fates for other captured subs:
26 March 1946:
Washington, DC. At a Submarine Officer's Conference, attended by former ComSubPac Vice Admiral Charles A. Lockwood, it is decided to dispose of all captured Japanese submarines by sinking.

31 May 1946:
The I-401 is a target ship in the Pacific off Pearl Harbor for tests of the Mark 10-3 exploder. At 1059, she sinks by the stern at 21-12N, 158-07W after being hit by two Mark-18 electric torpedoes fired by Cdr O. R. Cole's USS CABEZON (SS-334).

Posted by: Dar   2005-03-22 12:33:24 PM  

#3  Right after Figure 14 in Shipman's link:
"The giant I-400 was taken out to sea off Oahu and torpedoed" [by the U.S. after the war].
Posted by: Tom   2005-03-22 11:49:02 AM  

#2  Here's a little info.
Posted by: Shipman   2005-03-22 10:48:29 AM  

#1  400 ft of diesel powered chrysanthemum power! I'd really like to see one.
Posted by: Shipman   2005-03-22 10:46:39 AM  

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