I-5

I-5 (VT-11) "fifth fighter" - Soviet wing-and-a-half "light maneuverable" fighter of mixed wood-metal-linen design. The original name of the aircraft was "Inner Prison Eleven" BT-11. Designed and built in 1929 jointly by Russian Soviet aircraft designers Dmitry Grigorovich and Nikolai Polikarpov at the "Central Design Bureau - 39" of the OGPU named after V. R. Menzhinsky "Inner Prison - 11" in the Butyrka prison in Moscow. Design work and construction were carried out on the instructions of the Air Force of the Red Army and under the control of the Collegium of the OGPU. First flight - April 30, 1929. He was in service with combatant flying units of the Air Force of the Red Army from 1933 to 1936. The main type of combat aircraft in fighter aviation. A total of 803 vehicles were built, including prototypes.