Similar to 伊号第五十一潜水艦

Japanese Type L submarine#Type L4 (Ro-60-class)

Ro-100-class submarine

Japanese submarine I-6

Japanese submarine I-12

Japanese submarine I-121

Japanese submarine I-122

Japanese submarine I-123

Japanese submarine I-124

Japanese submarine I-177

Japanese submarine I-178

Japanese submarine I-179

Japanese submarine I-180

Japanese submarine I-182

Japanese submarine I-183