Kocherigin DI-6
| Kocherigin DI-6 | |
|---|---|
|
|
| Type: | Fighter plane |
| Design country: | |
| Manufacturer: |
Kocherigin |
| First flight: |
May 27, 1935 |
| Commissioning: |
1937 |
| Production time: |
1935, 1937-1938 |
| Number of pieces: |
over 200 |
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The Kotscherigin DI-6 ( Russian Кочеригин ДИ-6 ) was a two-seat Soviet fighter aircraft and was developed in the 1930s by Sergei Kotscherigin and Wladimir Jazenko . The abbreviation DI stands for Dwuchmestni istrebitel (Двухместний истребитель), which means "two-seat fighter plane".
history
The design was preceded by considerations as to how a fighter aircraft could best be protected against attacks by enemy fighters. As a result, got the DI-6 behind the pilot's seat a cabin for a gunner, with a mobile SchKAS - machine gun to defend the aircraft against attack from behind.
The machine was designed as a biplane in mixed construction, with the smaller lower wing being given a kink. In order to make the field of fire for the rear gunner as large as possible, the horizontal stabilizer was set very high. The main wheels could be retracted into the fuselage.
In 1935, the pilots J. P. Federow and W. A. Stepantschjonok began flight tests of the prototype known as the ZKB-11 with a Wright R-1820 engine, which was successful and resulted in the order for series production. However, since there were difficulties with the delivery of the planned M-25 engine, production was delayed until 1937. More than 200 examples were produced until 1938 and were used for the first time in 1939 during the fighting on Chalchin Gol . There the DI-6 were initially successful due to the element of surprise, as the Japanese mistook them for Polikarpow I-153 without rear armament.
The training version with double taxation was given the designation DIT and was partly still in use in school units at the beginning of the German-Soviet War .
Another variant with more powerful armament appeared, which was called DIS-6Sch or ZKB-38 . Under the wings it had two weapon cases, each with two 7.62 mm machine guns SchKAS . Only about 20 of them were built. One of these machines was rebuilt as a simplified variant and equipped with a rigid chassis. An M-25B served as the drive , the designation was Di-6bis or Samoljot 21 . A variant DI-6T with double control was also produced as a hunting trainer .
Technical specifications
| Parameter | Data |
|---|---|
| Constructors | S. A. Kotscherigin, W. P. Jazenko |
| crew | 2 (pilot, gunner) |
| length | 7.00 m |
| span | above 10.00 m below 7.49 m |
| height | 3.20 m |
| Wing area | 25.15 m² |
| Empty mass | 1407 kg |
| Max. Takeoff mass | 1987 kg |
| Top speed | 372 km / h at 3000 m |
| Service ceiling | 8000 m |
| Range | 550 km |
| Engine | an air-cooled radial engine M-25 |
| power | 522 kW (700 hp) |
| Armament | two rigid 7.62-mm-MG SchKAS under the wings one movable 7.62-mm-MG SchKAS in the rear stand four 10-kg bombs under the wings |
See also
literature
- William Green and Gordon Swanborough: Fighter Planes of the World . Motorbuchverlag, Stuttgart 1996, ISBN 3-7276-7126-2 .
- Vaclav Nemecek: Soviet planes . Luftfahrtverlag Walter Zuerl, Steinebach / Wörthsee 1969.
