Captain is the name most often given in English-speaking navies to the rank corresponding to command of the largest ships. The rank is equal to the army rank of colonel and air force rank of group cap
Royal Navy captain's rank insignia during Divisions conducted at HMNB Clyde, 2013
Captain from US Navy (at left) and Senior Captain from PLA Navy, 2015
Front page of the Breve Compendio do que pertence à obrigação de hum Capitão de Mar, & Guerra, or "Brief compendium of what pertains to the obligation of a captain of sea and war" (1676)
Portrait miniature of the Portuguese captain of sea and war André de Sousa Ferreira in 1751.
Fregattenkapitän is the middle ranking senior officer in a number of Germanic-speaking navies.
Captain (naval)
…abbreviated KptzS, KZS, or KzS) is a senior officer rank in the German Navy. Insignia Shoulder Sleeve Higher/lower rank Imperial German Navy Kommodore Fregattenkapitän Reichsmarine Kommodore Fregattenkapitän Kriegsmarine Kommodore Fregattenkapitän Volksmarine Konteradmiral Fregattenkapitän German Navy Flottillenadmiral…
A Fregattenkapitän at a shooting exercise