Polikarpov WIT
| Polikarpov WIT | |
|---|---|
| Type: | Tank fighter plane |
| Design country: | |
| Manufacturer: | |
| First flight: |
October 29, 1937 |
| Number of pieces: |
|
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The Polikarpow WIT ( Russian Поликарпов ВИТ ) is a Soviet tank fighter from the second half of the 1930s. WIT stands for Wosduschny Istrebitjel Tankow ( Russian воздушный истребитель танков ), a fighter aircraft for fighting tanks. It only appeared as a prototype.
development
The original model of this model was the heavy escort fighter ZKB-44 , of which several further developments were planned, including an attack aircraft version. However, only the WIT-1 was implemented .
It was designed as a cantilever low- wing aircraft in all-metal construction and had a rear wheel landing gear, the main wheels of which could be retracted into the engine nacelles. Two 700 kW motors served as drive. The WIT-1 was armed with four 37-mm cannons in the wings, a 20-mm cannon in the fuselage nose and a movable 7.62-mm machine gun in the rear defensive stand. In addition, 600 kg of bombs could be carried internally. A prototype was created in 1937.
Since this model had to struggle with stability problems, Nikolai Polikarpow revised the design again and constructed the ZKB-48 with a modified double control unit , better engines, stronger armament and a different cabin. This prototype first flew on May 11, 1938. The flight performance was good, and 50 aircraft were ordered under the designation WIT-2 , but none of them were produced. The successor model was the slightly smaller Polikarpow SPB (D) , five of which were built.
Technical specifications
| Parameter | WIT-2 data (ZKB-48) |
|---|---|
| crew | 2 (pilot / gunner) |
| span | 16.5 m |
| length | 12.25 m |
| Wing area | 40.76 m² |
| Takeoff mass | 6300 kg |
| Engines | two liquid-cooled twelve-cylinder - V-engines M-105 |
| power | 783 kW (approx. 1,060 PS) |
| Top speed | 513 km / h at an altitude of 4500 m |
| Summit height | 8200 m |
| Range | 1000 km |
| Take-off run | 450 m |
| Landing runway | 400 m |
| Armament | four 37 mm cannons two 20 mm cannons two 7.62 mm MG 1,000 kg bombs |
literature
- Heinz AF Schmidt: Soviet planes . Transpress, Berlin 1971, p. 128 .
Web links
- Поликарпов ВИТ-1. Retrieved December 21, 2018 (Russian, WIT-1 on airwar.ru).
- Поликарпов ВИТ-2. Retrieved December 21, 2018 (Russian, WIT-2 on airwar.ru).
Individual evidence
- ↑ Wilfried Bergholz: Russian fighter planes since 1934. Motorbuch, Stuttgart 2019, ISBN 978-3-613-04226-1 , p. 20