page_title: Kaichū type submarine
section_title: Kaichū III (Ro-16 class)
hierarchical_section_title: Kaichū type submarine / Class variants / Kaichū III (Ro-16 class)
caption_attribution_description: 日本語: 日本海軍 呂号第16潜水艦 English: HIJMS Ro-16
context_page_description: The Kaichū type submarine submarines were double-hulled medium-sized submarines of the Imperial Japanese Navy during World War II. They were derived from the Kaigun-shiki Chū-gata Sensuikan.
  Several variants existed. From 1934 to 1944, the K6 type and the K7 type were built. They were equipped with a 76.2 mm L/40 gun and four 53 cm torpedo tubes for ten type 95 Long Lance torpedoes.
  Most of these submarines were destroyed in combat, suffering from Allied anti-submarine warfare measures, and only the Ro-50 survived the war.
context_section_description: Project number S18. Their project number was the same as in the Kaichū II type submarine, however their performance was improved.
  Boats in class
caption: Ro-16 in 1920s
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