 The Japanese submarine I @-@ 179 ( originally I @-@ 79 ) was a Kaidai type cruiser submarine of the KD7 sub @-@ class built for the Imperial Japanese Navy ( IJN ) during the 1940s . She was lost with all hands when a valve was accidentally left open during her sea trials in July 1943 . Her wreck was later salvaged and is now a popular diving site .
 Unterscheidung zwischen den KD7- und KD7a-Klassen ist in der Literatur nicht einheitlich . Die I @-@ 179 ist in der Literatur oft als KD7a-Klasse bezeichnet .
↑ 1 . 2