Editing Polikarpov I-15 (section)

{{Short description|Soviet fighter aircraft}}
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{{Infobox aircraft
|name = I-15 and I-15bis
|image = File:Polikarpov I-15bis.jpg
|caption = I-15bis
|type = Fighter
|manufacturer = [[Polikarpov]]
|designer = [[Nikolai Nikolaevich Polikarpov]]
|first_flight = October 1933
|introduction = 1934
|retired =
|status = Retired 
|primary_user = [[Soviet Air Force]]
|more_users = [[Spanish Republican Air Force]]<br>[[Chinese Nationalist Air Force]]<br>[[Mongolian People's Army|Mongolian People's Army Air Force]]
|produced = 1934–1937<ref name=wio>[http://www.wio.ru/tacftr/polikarp.htm "Polikarpov fighters."] ''wio.ru.'' Retrieved: 8 October 2012.</ref>
|number_built = 3,313 (plus 3,437 I-153)<ref name=wio/>
|developed_from = [[Polikarpov I-5]]
|variants = [[Polikarpov I-153]]
}}

The '''Polikarpov I-15''' ({{langx|ru|И-15}}) was a Soviet [[biplane]] [[fighter aircraft]] of the 1930s. Nicknamed ''Chaika'' (''{{langx|ru|Чайка}}'', "gull") because of its [[gull wing|gulled]] upper wings,<ref name="Gunston Russian p299">Gunston 1995, p. 299.</ref><ref name="Chaika p10">Green and Swanborough 1979, p. 10.</ref> 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 [[Second Spanish Republic|Spanish Republicans]] during the [[Spanish Civil War]], where it was called Chato (snub-nose).<ref>Lannon 2002, p. 46.</ref>