Japanese submarine I-22 (1938)
|Empire of Japan|
|Laid down:||November 25, 1937|
|Launched:||December 23, 1938|
|Completed:||March 10, 1941|
|Commissioned:||Yokosuka, Japan on March 10, 1941|
|Struck:||December 15, 1942|
|Fate:||Sunk on October 6, 1942 in the Coral Sea by a United States Navy Consolidated PBY Catalina aircraft.|
|Class and type:||Type C1 submarine|
|Length:||109.3 m (358 ft 7 in) overall|
|Beam:||9.1 m (29 ft 10 in)|
|Draft:||5.3 m (17 ft 5 in)|
|Test depth:||100 m (330 ft)|
|Notes:||Fitted to carry 1 × Type A midget submarine|
Design and description
The Type C submarines were derived from the earlier KD6 sub-class of the Kaidai class with a heavier torpedo armament for long-range attacks. They displaced 2,595 tonnes (2,554 long tons) surfaced and 3,618 tonnes (3,561 long tons) submerged. The submarines were 109.3 meters (358 ft 7 in) long, had a beam of 9.1 meters (29 ft 10 in) and a draft of 5.3 meters (17 ft 5 in). They had a diving depth of 100 meters (330 ft).
For surface running, the boats were powered by two 6,200-brake-horsepower (4,623 kW) diesel engines, each driving one propeller shaft. When submerged each propeller was driven by a 1,000-horsepower (746 kW) electric motor. They could reach 23.6 knots (43.7 km/h; 27.2 mph) on the surface and 8 knots (15 km/h; 9.2 mph) underwater. On the surface, the C1s had a range of 14,000 nautical miles (26,000 km; 16,000 mi) at 16 knots (30 km/h; 18 mph); submerged, they had a range of 60 nmi (110 km; 69 mi) at 3 knots (5.6 km/h; 3.5 mph).
The boats were armed with eight internal bow 53.3 cm (21.0 in) torpedo tubes and carried a total of 20 torpedoes. They were also armed with a single 140 mm (5.5 in)/40 deck gun and two single or twin mounts for 25 mm (1 in) 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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