Kotscherigin TSch-3
| Kotscherigin TSch-3 (ZKB-4) | |
|---|---|
| Type: | Attack aircraft |
| Design country: | |
| Manufacturer: | |
| First flight: |
1934 |
| Commissioning: |
- |
| Number of pieces: |
1 prototype |
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The Kotscherigin TSch-3 ( Russian Кочеригин ТШ-3 ) was a Soviet , heavy attack aircraft ( Russian Тяжелый Штурмовик ) of the 1930s. It was designed by Sergei Kotscherigin and Mikhail Gurevich, who later became famous for the MiG aircraft .
history
At the beginning of the 1930s, the Red Army adopted the doctrine of the interaction of air and ground forces and the effective support of the ground forces from the air by airplanes. For this reason , the attack aircraft TSch-1, TSch-2 and SchON had already been developed and tested by Dmitri Grigorowitsch at the end of the 1920s . Without exception, these models were further developments of the R-5 biplane , which were only partially suitable for this purpose. With the TSch-3, Kotscherigin and the Gurewitsch employed by him in the OSS department of the ZKB have now developed the first type designed as an attack aircraft from the start.
Work began in 1932 under the project name ZKB-4. The aircraft was designed as a monoplane with clad, non-retractable "pant leg landing gear". To protect against projectiles, the fuselage and the wings were equipped with armor made of 4 mm thick steel plates, weighing 576 kilograms. With an empty weight of 2665 kilograms, it made up almost a quarter of the total weight. As an offensive armament, the TSch-3 had ten 7.62-millimeter machine guns of the SchKAS type in the wings and a total of 18 smaller bombs in three under-wing cassettes. In 1934 the prototype was completed and tested by the pilot Vladimir Kokkinaki . The tests showed that the armor was too low in speed and maneuverability. Since these problems could not be resolved with this pattern, the project was discontinued. As one of the consequences of the unsuccessful development, the "Ivanov" development contract for an attack aircraft was initiated in 1936 in order to combine the optimal combination of armament, armor, speed and maneuverability in one model.
The TSch-3 was a failure, but with its monoplane design, armor and machine gunner for the rear, it already had some of the characteristics of the successful Il-2 from 1939.
Technical specifications
| Parameter | Data |
|---|---|
| crew | 2 (pilot, gunner) |
| span | 16.50 m |
| length | 10.75 m |
| Wing area | 45.04 m² |
| Empty mass | 2665 kg |
| Takeoff mass | 3557 kg |
| drive | a liquid-cooled V12 engine M-34F |
| power | 551.5 kW (750 PS) |
| Top speed | 243 km / h at an altitude of 1000 m |
| Rise time | 10.7 min at 3000 m altitude |
| Service ceiling | 5800 m |
| Range | 470 km |
| Armament | Five rigid 7.62 mm MG SchKAS per wing, one movable 7-62 mm MG SchKAS in the defense position |
| Drop ammunition | 6 bombs each in 3 cassettes under the wings and fuselage |
literature
- Kotscherigin TSch-3 . In: Fliegerrevue . No. 10/1971 (224) , pp. 436 (rubric: aircraft types of the Soviet Union).
Web links
- ЦКБ ТШ-3. Retrieved October 13, 2016 (Russian, history and dates).
Individual evidence
- ^ Karl-Heinz Eyermann , Wolfgang Sellenthin: The military aviation of the USSR . Central Board of the Society for German-Soviet Friendship, 1967. p. 21.