Polikarpov I-15 & I-153

I15

The Polikarpov I-15 was a Soviet biplane fighter aircraft of the 1930s.

Nicknamed Chaika because of its gulled upper wings, it was operated in large numbers by the Soviet Air Force, and together with the Polikarpov I-16 monoplane, was one of the standard fighters of the Spanish Republicans during the Spanish Civil War, where it was called Chato.

I-153

The Polikarpov I-153 Chaika was a late 1930s Soviet biplane fighter.

Developed as an advanced version of the I-15 with a retractable undercarriage, the I-153 fought in the Soviet-Japanese combats in Mongolia and was one of the Soviets major fighter types in the early years of the Second World War.

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 (760 hp; 770 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

(Pressure cabin)

One aircraft fitted with a pressure cabin.

I-152TK

(Turbo-charged)

One aircraft fitted with two turbochargers.

I-15ter (I-153)

Development of the I-15 with retractable landing gear.

UTI-1

(Fighter trainer)

Factory-built two-seat trainer version, front cockpit moved forwards, dual controls fitted, 20 built in 1934 but not used by VVS

Specifications

Crew

One

Length

6.10 m (20 ft 0 in) (tail up)

Upper wingspan

9.75 m (32 ft 0 in)

Lower wingspan

7.50 m (24 ft 7 in)

Height

2.20 m (7 ft 3 in) (tail down)

Wing area

21.90 m2 (235.7 sq ft)

Airfoil

Clark YH

Empty weight

1,012 kg (2,231 lb)

Gross weight

1,385 kg (3,053 lb)

Max take-off weight

1,689 kg (3,724 lb)

Fuel capacity

260 L (57 imp gal; 69 US gal)

Powerplant

1 × Shvetsov M-25 9-cylinder air-cooled radial piston engine, 520 kW (700 hp) at 2,300 m (7,500 ft)

Propellers

2-bladed variable-pitch propeller

Performance

Maximum speed

367 km/h (228 mph, 198 kn) at 3,000 m (9,800 ft)

Cruise speed

285 km/h (177 mph, 154 kn) at 2,000 m (6,600 ft) (max. continuous cruise)

Range

510 km (320 mi, 280 nmi)

Service ceiling

9,800 m (32,200 ft)

Time to altitude

1.1 min to 1,000 m (3,300 ft)

6.1 min to 5,000 m (16,400 ft)

Armament

4 × 7.62mm machine guns 7.62×54mmR PV-1 machine guns

Up to 100kg (220 lb) of bombs.

 

 

 

 

 

 

 

 

 

 

 

 

 

Share on facebook