KD6A Class, Japanese Submarines

IJN I-68, a KD6a-class submarine

Tonnage	1400 tons standard
Dimensions	336'7" by 26'11" by 15'0" 102.59m by 8.20m by 4.57m
Maximum speed	23 knots (surfaced) 8.2 knots (submerged)
Dive	to nearly 250 feet (76 meters)
Complement	60-84
Armament	1 4.7"/45 dual-purpose gun 1 13mm/76 machine gun 6 21" torpedo tubes (14 torpedoes)
Bunkerage	341 tons diesel oil
Range	14,000 nautical miles (26,000 km) at 10 knots surfaced 65 nautical miles (120km) at 3 knots submerged

The KD6Bs were completed between 1934 and 1938 and were the first Japanese submarines designed outside the limitations of the naval treaties. They had stonger pressure hulls and better engines than earlier Japanese submarine classes.

Units in the Pacific:

I-68	Southwest of Oahu	Torpedoed 1943-7-23 off New Hanover by Scamp
I-69	Southwest of Oahu	Sunk by aircraft 1944-4-4 at Truk
I-70	Southwest of Oahu	Sunk 1941-12-10 off Oahu by aircraft from Enterprise
I-71	Southwest of Oahu	Sunk 1944-2-1 off Buka by Guest and Hudson
I-72	Southwest of Oahu	Sunk 1942-11-10 near 161.2E 10.2S by Southard
I-73	Southwest of Oahu	Torpedoed 1942-1-27 off Midway by Gudgeon

References

Boyd and Yoshida (1995)

Jentschura, Jung, and Mickel (1977)

CombinedFleet.com (accessed 2 January 2007)

Worth (2001)

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