page_title: Polikarpov I-15
section_title: Operators
hierarchical_section_title: Polikarpov I-15 / Operators
caption_attribution_description: English: The I-15 Polikarpov No 56 flown by Frank Glasgow Tinker as part of the Yankee Squadron of the Spanish Republican Air Force, during the Spanish Civil War.
context_page_description: The Polikarpov I-15 was a Soviet biplane fighter aircraft of the 1930s. Nicknamed Chaika because of its gulled upper wings, it was operated in large numbers by the Soviet Air Force, and together with the Polikarpov I-16 monoplane, was one of the standard fighters of the Spanish Republicans during the Spanish Civil War, where it was called Chato.
context_section_description:  China
  Chinese Nationalist Air Force
   Finland
  Finnish Air Force (captured)
   Nazi Germany
  Luftwaffe (captured)
   Mongolia
  Mongolian People's Army Air Force- received more than 40 aircraft in July 1939 – 1942
   Soviet Union
  Soviet Air Force
  Soviet Naval Aviation
   Spanish Republic
  Spanish Republican Air Force
   Spain
  Spanish Air Force – Post civil war.
caption: Spanish Republican Air Force "Chato"
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