Cause of IJN submrines loss except for combat -Desperate War of Japan in the Pacific

Desperate War of Japan in the Pacific

Tbl-102 Cause of IJN submrines loss except for combat
Warship no. Date Place Cause

Ro-66 41.12.17 Wake Collied with Ro-62

Ro-60 41.12.29 Kwajalein Shipwrecked

I-23 42.2.28 Hawaii Unknown

I-33 42.9.26 Truk Harbor Accident, salvaged

I-22 42.11.12 Solomon Unkown

I-31 43.5.14 Attu Unkown

I-179 43.7.14 Iyo-nada Trainning

I-178 43.8.4 East Australia Unkown

Ro-103 43.8.10 Solomon Unkown

I-25 43.10.24 Near New Hebrides Is. Unkown

I-20 43.11.18 Near New Hebrides Is. Unkown

I-21 43.12.24 Near Gilbert Islands Unkown

Ro-38 44.1.2 Near Gilbert Islands Unkown

I-19 44.2.2 Near Gilbert Islands Unkown

I-11 44.3.20 Samoa Unkown

I-174 44.4.13 South Truk Atoll Unkown

I-33 44.6.13 Iyo-nada Trainning

I-55 44.7.15 Near Tinian Unkown

I-26 44.11.21 East Leyte Unkown

I-12 45.1.31 Central Pacific Unkown

I-371 45.3.12 Pacific Unkown

Ro-49 45.4.15 Okinawa Unkown

Total Unknown=18 Accident=4 22

Note I-33 sank by accident once, and sank while trainning again. Hashimoto p.407-414