HIJMS Submarine I-1 : Tabular Record of Movement, Morison, pp. 348–350, Jersey, p. 372. Moa and Kiwi were based at Tulagi along with two other New Zealand corvettes- Matai and Tui. Moa was under the command of (then) Lieutenant Commander Peter Phipps. I-1 was under the command of Lieutenant Commander Eiichi Sakamoto. Sixty-six of the submarine's crew survived to reach shore, but Sakamoto was killed along with 26 others of his crew. The submarine's gunnery officer, Ensign Ko Oikawa, was captured by Moa. I-1 sank in shallow water, leaving about 15 قدم (4.6 م) of the sub sticking out of the water at a 45° angle. On the night of 2 February, three of the sub's survivors along with 11 other IJN personnel present on Guadalcanal unsuccessfully attempted to destroy the wrecked sub. On 10 February, a raid by nine إيشي دي3إيه divebombers escorted by 28 Zeros from the 582nd Naval Air Group at Buin struck the wreck, damaging it further but failing to destroy it. On 13 and 15 February, Japanese submarine I-2 attempted unsuccessfully to locate the wreck and complete its destruction. Allied divers later recovered five code books from the submarine, including one for a version of the JN-25 code. Assuming that the code had been compromised, the IJN upgraded three major naval codes. (Hackett and Kingsepp) نسخة محفوظة 16 مايو 2017 على موقع واي باك مشين.
HIJMS Submarine I-1 : Tabular Record of Movement, Morison, pp. 348–350, Jersey, p. 372. Moa and Kiwi were based at Tulagi along with two other New Zealand corvettes- Matai and Tui. Moa was under the command of (then) Lieutenant Commander Peter Phipps. I-1 was under the command of Lieutenant Commander Eiichi Sakamoto. Sixty-six of the submarine's crew survived to reach shore, but Sakamoto was killed along with 26 others of his crew. The submarine's gunnery officer, Ensign Ko Oikawa, was captured by Moa. I-1 sank in shallow water, leaving about 15 قدم (4.6 م) of the sub sticking out of the water at a 45° angle. On the night of 2 February, three of the sub's survivors along with 11 other IJN personnel present on Guadalcanal unsuccessfully attempted to destroy the wrecked sub. On 10 February, a raid by nine إيشي دي3إيه divebombers escorted by 28 Zeros from the 582nd Naval Air Group at Buin struck the wreck, damaging it further but failing to destroy it. On 13 and 15 February, Japanese submarine I-2 attempted unsuccessfully to locate the wreck and complete its destruction. Allied divers later recovered five code books from the submarine, including one for a version of the JN-25 code. Assuming that the code had been compromised, the IJN upgraded three major naval codes. (Hackett and Kingsepp) نسخة محفوظة 16 مايو 2017 على موقع واي باك مشين.
