Ro-53, originally named Submarine No. 27, was an Imperial Japanese Navy Type L submarine, the lead unit of the L2 subclass. She was in commission from 1921 to 1938.
Ro-53, originally named Submarine No. 27, was an Imperial Japanese Navy Type L submarine, the lead unit of the L2 subclass. She was in commission from 1921 to 1938. (en)