Myasishev WB-109
| Myasishev WB-109 | |
|---|---|
| Type: | High altitude bomber |
| Design country: | |
| Manufacturer: |
Aircraft Plant (Zavod) Kazan |
| First flight: |
1945 |
| Number of pieces: |
1 |
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The Mjasishchev WB-109 ( Russian Мясищев ВБ-109 ) was a Soviet bomber from the mid-1940s. The name is explained by the use as a high-altitude bomber ("Wyssotny Bombardirowschtschik", Russian Высотный бомбардировщик ) and the intended engines, two WK-109.
history
On June 25, 1943, Vladimir Myasishchev was appointed production manager of the Kazan aircraft plant, which produced the twin-engine Pe-2 bomber in series. By the end of the Second World War, he optimized its production and developed improved variants. On the basis of this, he constructed the day bomber DB-108 at the end of 1944 , which, however, did not go into production in favor of the Tu-2 . Myasishchev developed the high-altitude bomber project from him in early 1945. The type should be able to operate at an altitude of 10,000 meters and be powered by two newly developed WK-109 engines with two-stage 2-speed chargers (1500 kW altitude) from Klimow . Since these were not yet fully developed at the start of the test, one had to switch to two WK-107A . The WB-109 was designed as a cantilever middle wing with a straight wing center section, in the leading edge of which the radiator was also located, and elliptically tapering outer wings. The engine gondolas were used to hold the main landing gear wheels, the rear wheel was also retractable. The vertical stabilizer was integrated in two end plates on the left and right of the horizontal stabilizer . As with the Pe-2, the lower part of the bow was glazed for better visibility. At the rear, a remote-controlled weapons stand was with a 20-mm machine gun , another machine gun was firmly installed. The fuel tanks were located in the fuselage and wings and together held 1740 liters. In the bomb bay 2,000 kilograms of bombs as well as two 500-kilogram bombs at underwing outstations could be carried. The crew consisted of a pilot and a rifleman / radio operator who were housed in an armored pressurized cabin . The armor was up to 10 mm, the armored glass was 64 mm thick.
In the second half of 1945 flight tests of the WB-109 began. However, due to the dawn of the jet engine era, it was soon discontinued.
Technical specifications
| Parameter | Data |
|---|---|
| span | 17.8 m |
| length | 14.17 m |
| Wing area | 43.16 m² |
| Empty mass | 7,508 kg |
| Takeoff mass | normal 9,900 kg maximum 11,900 kg |
| Engine (s) | two liquid-cooled 12-cylinder - V-engines Klimov WK-107A |
| power | 1,500 kW (2,039 PS) close to the ground 1,140 kW (1,550 PS) at 8,000 m |
| Top speed | 595 km / h near the ground 720 km / h at 9,000 m |
| Range | 2,200 km |
| Armament | One 20 mm MK each in the bow and stern |
| Bomb load | 3,000 kg |
literature
- Myassistchev WB-109 . In: Fliegerrevue . No. 8 , 1986, pp. 255 (column "Who? When? What?").