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| | Kaiten Information |
 | | During her brief conventional career,I-53 participated in operation "A-Go", being assigned a patrol area north of the Admiralty Islands, in May 1944.She was assigned sentry duty east of the Marianas, in mid-June 1944, and did not contribute to the Philippine Sea Battle. |
 | | Commander Oba (Etajima class of 1935), had previously commanded RO-105, RO-49, I-162, and latest of all, I-53.Under his command, I-53 took part in the second Kaiten mission, "Kongo." She was unable to launch any of the four kaitens she carried and was forced to return to Japan with her disappointed crew. |
 | | The Underhill also apparently rammed and sank at least one other of the attacking kaitens However, shortly thereafter, at 1515 hours her luck ran out and she was struck by a third suicide craft, which rammed home on the starboard bow just forward of Engine Room #1.The results were catastrophic. |
| www.ussunderhill.org /html/kaiten_information.html (764 words) |
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