page_title: Imperial Japanese Navy ship classifications
section_title: Auxiliary patrol boat
hierarchical_section_title: Imperial Japanese Navy ship classifications / Detailed classification tables / Auxiliary patrol boat
caption_attribution_description: English: o.173 auxiliary patrol boat of the Imperial Japanese Navy at Tokushima Shipbuilding, Japan. 日本語: 日本海軍哨戒特務艇第173号、1945年（昭和20年）1月10日、徳島造船。『世界の艦船-日本海軍護衛艦艇史』115ページより。
context_page_description: These are legal classifications of the naval vessels of the Imperial Japanese Navy. Therefore, those names are different from a universal classifications and class names.
  In laws and ordinances of the Imperial Japanese Navy, there is not a light aircraft carrier, escort carrier, heavy cruiser and light cruiser.
  Even if it is assumed that these translation was different Japanese language, there can be the same phrase and thing in English language, and vice versa.
  Example 1: Kōsakukan and Kōsakusen = Repair ship.
  Example 2: Fusetukan, Fusetsusen and Fusetsutei = Minelayer.
  If there is not it in the one and only, this clause uses the following expression to express different Japanese language.
  Kan = Vessel, example: Kōsakukan is Repair vessel.
  Sen = Ship, example: Kōsakusen is Repair ship.
  Tei = Boat, example: Fusetsutei is Mine boat.
caption: Auxiliary patrol boat No. 173
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