Mikoyan-Gurevich I-220
| Mikoyan-Gurevich I-220 (A) | |
|---|---|
| Type: | Fighter plane |
| Design country: | |
| Manufacturer: | |
| First flight: |
January 1943 |
| Number of pieces: |
2 prototypes |
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Mikojan-Gurewitsch I-220 ( Russian Микоян-Гуревич И-220 ) is the name of a Soviet fighter aircraft from the time of the Second World War . It should replace the MiG-3 in its capacity as a high altitude fighter. However, due to the lack of suitable engines, only two prototypes were created . Alternative names are Project A or MiG-11 .
development
The first design work began in 1942. Compared to the MiG-3, the model was given larger dimensions. The fuselage and the wingspan were lengthened, the wing area increased by 3.00 m². The machine was aerodynamically cleaner thanks to the water cooler installed in the wing roots.
Since the Soviet industry could not provide a powerful drive suitable for high altitudes, a normal Mikulin AM-38F was used for the first prototype . As armament, the model received two shvak cannon - machine guns caliber 20 mm. Flight tests began in January 1943. It gave good results, but only at medium altitudes.
The second prototype was to receive a Mikulin AM-39 suitable for high altitudes, but since this was not yet ready for use at this time, the decision was made for the time being for the AM-37 engine of the MiG-3AM-37 (MiG-5), one Version of the MiG-3 not built in series. The AM-39 could be used some time later. The armament this time included four SchWAK cannons.
The first flight of this machine took place in August 1943. As with the first prototype, the flight performance at medium altitudes was very good, but above that it left a lot to be desired. A series production was therefore not carried out and the intended series designation MiG-11 was given again to the project I-224 , which, however, did not reach series maturity either.
The I-221 with an AM-39A engine, also based on the MiG-3, appeared as a successor model at the end of 1943 .
Technical specifications
| Parameter | 1. Prototype | 2. prototype |
|---|---|---|
| crew | 1 pilot | |
| length | 9.50 m | |
| span | 11.0 m | |
| Wing area | 20.44 m² | |
| Wing extension | 5.9 | |
| Empty mass | 2,980 kg | 3,100 kg |
| Takeoff mass | 3,574 kg | 3,730 kg |
| Top speed | 652 km / h at an altitude of 2,600 m 572 km / h near the ground |
614 km / h at an altitude of 2,700 m, 571 km / h near the ground |
| Ascent time to 5,000 m |
4.6 min | 4.5 min |
| Summit height | 9,500 m | 11,000 m |
| Range | 960 km | 630 km |
| Armament | two 20 mm MK SchWAK in the fuselage bow | four 20 mm MK SchWAK in the fuselage bow |
| Engine | a liquid-cooled V-engine Mikulin AM-38 F | a liquid-cooled V-engine Mikulin AM-39 |
| power | 1,265 kW (1,720 PS) takeoff power | 1,250 kW (1,700 PS) take-off power |
See also
literature
- Karl-Heinz Eyermann : MiG aircraft. transpress Verlag, Berlin 1987, ISBN 3-344-00193-0 .
- Nikolai K. Subbotin: Piston engine fighter aircraft from OKB Mikoyan. In: Wolfgang Sellenthin (ed.): Fliegerkalender der DDR 1981. Militärverlag der DDR, Berlin 1980, pp. 35–43.