Polikarpov I-15 - Variants

Variants

TsKB-3bis

Prototype.

TsKB-3ter

Prototype fitted with the more powerful M-25V radial piston engine.

I-15

First production series.

I-15bis

Single-seat fighter biplane, armed with four 7.62 mm (0.30 in)PV-1 or ShKAS machine guns, plus up to 150 kg (330 lb) of bombs. The I-15bis was powered by the more powerful 570 kW (775 PS) Shvetsov M-25V radial piston engine. It had a straight upper wing. A total of 2,408 machines were built.

I-152

Modernised version of I-15bis. One built in 1938. Series production was not undertaken, since it was decided to build I-153 instead.

I-152GK

(Germetichyeskoi Kabine – hermetic (pressure) cabin) - One aircraft fitted with a pressure cabin.

I-152TK

(Turbo Kompressor - turbo-charged) - One aircraft fitted with two turbochargers.

I-15ter (I-153)

Development of the I-15 with retractable landing gear, see Polikarpov I-153.

UTI-1

(Oochebno Trenirovochnyy Istrebitel' - fighter trainer) - Factory built two seat trainer version, front cockpit moved forwards, dual controls fitted, 20 built in 1934 but not used by VVS