IJN I-168

Sunk

Type	Submarine
Class	Kaidai
War	Second World War
Main guns	1 × 3.9″ gun

Shelled Midway on the night of 4 June 1942, then found the crippled Yorktown and sank her and Hammann. Sunk by a US submarine in 1943.

Japanese submarine I-68 underway in 1934. The photo was probably taken during her trials. U.S. Naval History and Heritage Command caption: Photo NH73504. Japanese Submarine I-68, March 1934 Photo: The photo was donated to the U.S. Naval History and Heritage Command by Kazutoshi Hando in 1970, Public domain · Wikimedia Commons

Armament and specifications

Armament

6 x torpedo tubes/14 × 21 in (533 mm) torpedoes
1 x 10 cm/50 Type 88 naval gun
1 × 13.2 mm (0.52 in) AA gun

Builder	Kure Naval Arsenal, Kure, Japan
Laid down	18 June 1931
Launched	26 June 1933
Commissioned	31 July 1934
Displacement	1,400 (1,785 maximum) tons surface, 2,440 tons submerged
Length	322 ft 10 in (98.40 m)
Speed	23 knots (43 km/h; 26 mph) diesel/8.2 knots (15.2 km/h; 9.4 mph) electric
Complement	60–84

As built, from the ship's Wikipedia article. Figures there may cover later refits too.

Career

Launched

26 June 1933

Battle of Midway

Survived

4–7 June 1942

Sank Yorktown and Hammann

Fate

Sunk

Sunk, 27 July 1943