Changes

==Trivia==

==Trivia==

*2013 November event special map E1 completion reward

*2013 November event special map E1 completion reward.

*Although she has heavily damaged a Battleship and a Destroyer, it was by an accident as she was aiming for the Aircraft Carrier Wasp.

*Calls herself as "Iku".  The "i" is a way to read the 1 in Japanese along with the "ku" as a way to read the 9.

*Calls herself as "Iku".  The "i" is a way to read the 1 in Japanese along with the "ku" as a way to read the 9.

*In September 15, 1942, while patrolling the [http://en.wikipedia.org/wiki/Solomon_Islands ''Solomon Islands''], she fired 6 torpedoes at the carrier [http://en.wikipedia.org/wiki/USS_Wasp_(CV-7) ''USS Wasp''], 3 hit causing heavy damage, later she was abandoned and scuttled, while the other 3 sunk the destroyer [http://en.wikipedia.org/wiki/USS_O%27Brien_(DD-415) ''USS O'Brien''] and damaged significantly the battleship [http://en.wikipedia.org/wiki/USS_North_Carolina_(BB-55) ''USS North Carolina'']. As a result of this, she holds the record for the single most destructive torpedo spread fired by any submarine during World War II.

*In September 15, 1942, while patrolling the [http://en.wikipedia.org/wiki/Solomon_Islands ''Solomon Islands''], she spotted and fired a spread of 6 torpedoes at the carrier [http://en.wikipedia.org/wiki/USS_Wasp_(CV-7) ''USS Wasp'']''.''  3 torpedeos hit the carrier, causing such heavy damage that she later needed to be scuttled.  The other 3 torpedoes (by sheer luck) sunk the destroyer [http://en.wikipedia.org/wiki/USS_O%27Brien_(DD-415) ''USS O'Brien''] and caused significant damage to the battleship [http://en.wikipedia.org/wiki/USS_North_Carolina_(BB-55) ''USS North Carolina'']. As a result of this, she holds the record for the single most destructive torpedo spread fired by any submarine during World War II.

*She is a distant cousin of I-58, both were Type-B Submarines.  

*She is a distant cousin of I-58, both were Type-B Submarines.  

*Sunk via depth charges on November 25, 1943 by [http://en.wikipedia.org/wiki/USS_Radford_(DD-446) USS ''Radford''].

*Sunk via depth charges on November 25, 1943 by [http://en.wikipedia.org/wiki/USS_Radford_(DD-446) USS ''Radford''].