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  I-60 Japanese Submarine
Kaidai-class cruiser submarine (KD3B Type)

1,829 Tons (surfaced)
2,337 Tons (submerged)
331' 4" x 26' 3" x 16' 1"
8 x 21" torpedo tubes
(6 bow, 2 stern)
1 x 140mm deck gun

Sub History
Built at the Sasebo Navy Yard. Laid down October 10, 1927 as Kaidai-class cruiser submarine (KD3B Type). Launched 24 April 1929 as I-60. Completed and commissioned December 24, 1929 in the Imperial Japanese Navy (IJN) with LtCdr Seiryo Hayashi in command assigned into the Yokosuka Naval District.


On April 10, 1941 placed into reserve status at Sasebo for modernization and later Tama Zosensho shipyard at Tamano for additional work. On May 20, 1941 designated the flagship of SubDiv 28 until December 3, 1941 when transfered to I-59.

Wartime History
At the start of the Pacific War, still undergoing modernization at Tama Zosensho shipyard. Afterwards conducts brief sea trials then proceeds to Kobe. On December 26, 1941 reassigned to Submarine Unit B for the operations in the Indian Ocean. On December 31, 1941 departs Kobe with I-59 bound for Davao and arrives five days later and refuels. On January 5, 1943 arrives Davao and refuels and four days later designated the flagship of SubDiv 28.

First War Patrol
On January 10, 1942 departs Davao with I-59 bound for the southern entrance of the Sunda Strait to search for Allied ships. The next day, I-59 departs. On January 16, 1942 in the early morning arrives on station and at night transmits a situational report, the last message from the submarine.

Sinking History
On January 17, 1942 in the southern Sunda Strait a merchant vessel transmits a distress signal about an enemy submarine and HMS Jupiter (F85) responds and conducts a two hour ASDIC sonar search, detects it and made two depth charge attacks. Heavily damaged, the submarine surfaced astern and was too close for the main guns to fire. Unable to dive, the submarine attempts to engage the destroyer with its deck gun. Meanwhile, Jupiter changed course and opens fire with her starboard 20mm guns targeting the Japanese crew members attempting to reach the sub's 14cm deck gun and replacements as they fell.

Despite the gunfire, the submarine crew manages to open fire and hits Jupiter's stern twin 4.7" open gun turret killing three and wounding nine. The destroyer fires three torpedoes but all miss. Turning, the destroyers other 4.7" gun opens fire and scores two or three hits on the submarine disabling the deck gun but the submarine continues to return fire with her machine gun but is listing and smoking. With more 20mm fire the machine gun is silenced and is hit by another 4.7" shell between the coning tower and stern causing an internal explosion and more smoke. At full speed, Jupiter passed 15' abeam of the submarine and drops another set of depth charges with shallow fuze. The explosion blows an enemy sailor out of the conning tower and flames shoot 15' to 20' upward as the submarine sinks by the stern in the southern Sunda Strait at Lat 6° 19' 30" S, Long 104° 49' 20" E. Lost are 84 crew. On March 10, 1942 officially removed from the Navy list.

Afterwards, three of the crew are rescued and taken aboard as Prisoners Of War (POW) and one later died of injuries.

Combined Fleet - IJN Submarine I-60: Tabular Record of Movement

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Last Updated
January 17, 2021


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