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I 121 class submarine

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Name
  
I-121 class submarine

Operators
  
Imperial Japanese Navy

In commission
  
1927–1945

Builders
  
Kawasaki Corporation

Built
  
1924–1928

Planned
  
6

I-121-class submarine

The I-121-class submarine (伊百二十一型潜水艦, I-hyaku-ni-jū-ichi-gata sensuikan) was a class of submarine in the Imperial Japanese Navy (IJN), serving from the 1920s to the Second World War. The IJN classed it as a Kiraisen type submarine (機雷潜型潜水艦, Kiraisen-gata sensuikan). The type name, was shortened to Kirai Fusetsu Sensuikan (機雷敷設水艦, Minelaying submarine).

Contents

Construction

The Empire of Japan received six U-boats as a reparation payment after World War I. The IJN copied U-125 and designed the I-21 class (later renamed I-121 class) minelaying submarine. Six boats were ordered, of which four were completed, two were cancelled. All boats were built in the Kawasaki Yard at Kobe.

Service

When World War II began, the I-121-class boats were considered obsolete and used as minelayers and supply submarines for flying boats in the Pacific. Three boats of the class were lost in action. The I-121 survived the war and was sunk as a target post war.

References

I-121-class submarine Wikipedia