The Polikarpov I-15 was a Russian biplane in service with the Soviet Air Force from 1935 1946. It performed its first flight in 1933 and first saw combat action as a fighter aircraft in the Spanish Civil War. However, during World War II, the Polikarpov I-15 would be used as a ground attack aircraft as it had already been outclassed by more advanced monoplane fighters. It would also be employed in the Chinese Communist Revolution. The State-run Soviet factories produced more than 3,300 Polikarpov I-15 aircraft, including the I-15bis version.
The Polikarpov I-15 was a single-seat biplane aircraft, with a gulled upper wing, which was longer than the lower one. It was powered by one M-22 radial engine, which developed 473 horsepower, but the I-15-bis variant used an M-25 engine, generating 500 horsepower. The M-22 was the Soviet version ot the Bristol Jupiter engine produced in Russia under license. It was armed with four 7.62mm PV-1 machine guns and two 12.7mm BS machine guns. When used as a ground attack aircraft, the Polikarpov I-15’s weaponry also included six RS-82 rockets.
Wingspan: 9.75 m
Length: 6.10 m
Height: 2.2 m
Maximum speed: 350 km/h (220 mph)
Range: 500 km (310 miles)
Rate of climb: 7.6 m/s (1490 ft/min)