The Siskin fighter is a British biplane fighter aircraft that was designed in the early 1920s. It was developed by Gloster Aircraft Company and primarily used by the Royal Air Force (RAF) during the interwar period. The Siskin was known for its agility and speed, featuring a powerful engine and a distinctive biplane configuration. The aircraft was equipped with a variety of armaments, including machine guns, making it effective in combat. Although it was eventually phased out in favor of more advanced designs, the Siskin played a significant role in the evolution of fighter aircraft during its time.