Mig 13 / I-250

The Mikoyan-Gurevich I-250, aka MiG-13, was a Soviet fighter aircraft developed as part of a crash program in 1944 to develop a high-performance fighter to counter German turbojet-powered aircraft such as the Messerschmitt Me 262.

The Mikoyan-Gurevich design bureau decided to focus on a design that used something more mature than the jet engine, which was still at an experimental stage in the Soviet Union, and chose a mixed-power solution with the Vozdushno-Reaktivny Dvigatel Kompressornyi – air reaction compressor jet motor-jet powered by the Klimov VK-107 V12 engine.

While quite successful when it worked, with a maximum speed of 820 km/h (510 mph) being reached during trials, production problems with the VRDK fatally delayed the program and it was cancelled in 1948 as obsolete.

12 aircraft were produced

Specifications

Crew

1

Height

3.7 m (12 ft 2 in)

Wing area

14.99 m2 (161.4 sq ft)

Empty weight

2,797 kg (6,166 lb)

Gross weight

3,650 kg (8,047 lb)

Fuel capacity

612 litres (135 imp gal; 162 US gal) / 570 kg (1,256.6 lb) fuel and oil

Powerplant

1 × Klimov VK-107R V-12 liquid-cooled piston engine, 1,230 kW (1,650 hp) with VRDK – equivalent power 2,088 kW (2,800 hp)

Powerplant

1 × Khalshchevnikov Uskoritel VRDK motorjet, 2.9 kN (660 lbf) thrust

(VRDK – Vozdushno-Reaktivnyi Dvigatyel Kompressornyi)

Propellers

3-bladed AV-10P-60, 3.1 m (10 ft 2 in) diameter constant-speed propeller

Performance

Maximum speed

820 km/h (510 mph, 440 kn)

Range

790 km (490 mi, 430 nmi)

Service ceiling

11,900 m (39,000 ft)

Wing loading

245 kg/m2 (50 lb/sq ft)

Armament

3 × 20 mm (0.787 in) Berezin B-20 auto cannon (160 rounds each).