I-5 (EARLY) Soviet Fighter-Biplane. In the thirties it was the era of biplane fighters. In the Soviet Union they were designed by N. N. Polikarpov -The King of Fighters. The first Soviet mass-production fighter aircraft I-5 has constructed by him in 1930. Two prototypes, named VT-11 and Klim Voroshilov, and first serial aircraft had individual cylinder cowers.