Japanese submarine I-22 (1938)

The Japanese submarine I-22 was one of five Type C cruiser submarines of the C1 sub-class built for the Imperial Japanese Navy (IJN) during the 1930s.

Design and description
The Type C submarines were derived from the earlier KD6 sub-class of the  with a heavier torpedo armament for long-range attacks. They displaced  surfaced and  submerged. The submarines were  long, had a beam of  and a draft of . They had a diving depth of .

For surface running, the boats were powered by two  diesel engines, each driving one propeller shaft. When submerged each propeller was driven by a  electric motor. They could reach  on the surface and  underwater. On the surface, the C1s had a range of  at ; submerged, they had a range of  at .

The boats were armed with eight internal bow  torpedo tubes and carried a total of 20 torpedoes. They were also armed with a single /40 deck gun and two single or twin mounts for  Type 96 anti-aircraft guns. They were equipped to carry one Type A midget submarine aft of the conning tower.

Construction and career
I-22 was commissioned at Yokosuka, Japan on March 10, 1941.  The submarine participated in the attack on Pearl Harbor, the Battle of the Coral Sea, and the attack on Sydney Harbour in May and June 1942.  I-22 was on patrol in the Coral Sea near the island Malaita in the Solomon Islands when it was depth charged and sunk south east of the island by a  Consolidated PBY Catalina aircraft of the United States Navy on October 6, 1942.

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Category:Type C1 submarines
Category:Ships built in Japan
Category:1938 ships
Category:Japanese submarines lost during World War II
Category:World War II shipwrecks in the Pacific Ocean
Category:Ships lost with all hands
Category:Missing submarines of World War II
Category:Maritime incidents in October 1942