Mikoyan-Gurevich I-224
| Mikoyan-Gurevich I-224 (4A) | |
|---|---|
| Type: | High altitude fighter |
| Design country: | |
| Manufacturer: | |
| First flight: |
October 20, 1944 |
| Number of pieces: |
1 |
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The Mikoyan-Gurewitsch I-224 ( Russian Микоян-Гуревич И-224 ) was a single-seat Soviet fighter aircraft for the stratospheric area . It was created during the Second World War and only existed in one copy.
development
The development of the low-wing aircraft in a wood-metal composite construction began in 1943 as one of the aircraft types that were to replace the MiG-3 . The project name was 4A . An AM-42FB engine with two TK-300B compressors and an AW-9L-26 propeller with a diameter of 3.50 m served as drive . As armament, two SchWAK cannons caliber 20 mm were mounted in the bow on both sides below the engine. Like the I-222 , OKB Mikojan-Gurewitsch had equipped the I-224 with a pressurized cabin .
The first flight was carried out on October 20, 1944 by Igor Schelest. The I-224 achieved good rates of climb and they were also satisfied with the horizontal flight characteristics. In the event of a possible series production, the aircraft was to be given the designation MiG-7 , later an agreement was reached on the MiG-11 .
But then the I-224 crashed during a test flight, the pilot Alexej Jakimow was able to jump off with the parachute. Irregular operation of the compressor at certain speeds had already been noticed beforehand. The cause of the accident was finally recognized as a burst of the compressor with the subsequent destruction of the engine. Due to the crash, the tests with the I-224 were canceled, especially since the successor model I-225 was already available for testing.
Technical specifications
| Parameter | Data |
|---|---|
| Constructor (s) | Artyom Mikoyan , Michael Gurevich |
| Year of construction (s) | 1944 |
| crew | 1 pilot |
| length | 9.60 m |
| span | 13.00 m |
| height | 3.66 m |
| Wing area | 22.44 m² |
| Wing extension | 7.5 |
| Empty mass | 3,200 kg |
| Takeoff mass | 3,780 kg |
| Wing loading | 168.45 kg / m² |
| drive | a liquid-cooled 12-cylinder V-engine Mikulin AM-42FB with two TK-2B compressors |
| power | 1,620 kW (2,200 PS) takeoff power 1,300 kW (1,768 PS) at an altitude of 6,700 m |
| Top speed | 693 km / h at an altitude of 13,000 m |
| Rise time | 4.0 min at an altitude of 5,000 m |
| Service ceiling | 14,100 m |
| projected range | 1,400 km |
| Armament | two 20 mm MK SchWAK |
literature
- Rudolf Höfling: MiG aircraft since 1939 . Motorbuch, Stuttgart 2011, ISBN 978-3-613-03335-1 .
- Wilfried Bergholz: Russia's great aircraft manufacturer. Jakowlew, Mikojan / Gurewitsch, Suchoj. The complete type book . Aviatic, Oberhaching 2002, ISBN 3-925505-73-3 .
- Karl Heinz Eyermann: MiG aircraft . Transpress Verlag for Transport, 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 . Military Publishing House of the GDR, Berlin 1980, p. 35-43 .