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Aviation of Word War II |
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SK-2
The aircraft had a metal structure with a rivet in the back, the canvas was used only in the skin of the ailerons and rudders. The aircraft had an unusually small wing measuring 9.57 m². The aircraft was equipped with a serial M-105 engine with a variable pitch propeller VISh-52. The cockpit canopy was of the usual type with an emergency release mechanism, the oil cooler was moved to the forward lower part of the fuselage, the engine suction pipes are located at the root of the wing. With the M-105 engine with a power of 1050 h. p. and the VISh-52 propeller, the SK-2 aircraft developed a maximum speed at an altitude of 4900 m up to 660 km / h, and at an altitude of 2700 m - 645 km / h. To climb to a height of 5000 m, 4 minutes were enough for him. 20 s. The service ceiling was 10,300 m. The takeoff weight of the SK-2 was only 2,300 kg. Despite the high specific wing loading (240 kg / m²), the SK-2 had quite satisfactory takeoff and landing characteristics. The length of its takeoff run did not exceed 350 m, and the run - 500 m. When assessing the speed characteristics, it should be borne in mind that the SK-2 had no weapons. Converting it into a fighter (installing machine guns, armored backs, sight, etc.) would reduce the speed by several tens of kilometers. |
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