Nikitin NV-2
The NW- 2 Nikitin (Russian Никитин НВ -2 ) was a single-seat trainer aircraft in low-wing design that was designed by the Soviet designer Vasily Nikitin and 1935 with funds from the Ossoawiachim in Moscow (MAI OKB -30) was built. This machine had, like all derived versions, very good flight characteristics and has been successfully tested. Due to the excellent test results should have been built up to a total of 150 aircraft of this type and its variants.
History
W. W. Nikitin and his colleagues developed the aircraft NW- 1 in the period from 1935 to 1939 always continue to provide a full for the Soviet Air Force education and training fighter available. So over this period three improved variants emerged. These were the types of NW- 2, 2 bis - northwest and the NW-2bis/MG-31 (also known as UTI -5). By constantly improving the design and use of several aircraft engines, it was the collective to W. W. Nikitin managed to eventually develop an aircraft that is equal to the flight performance of the built by N. N. Polikarpov first series of I- 16 when was not superior. In appearance she was the I-16 are very similar. In comparison to its predecessor model, the NW- 2 in terms of their overall concept a major step forward in the development of training aircraft dar. However, due to lack of production capacities, they could not find a place in the training units of the Soviet Air Force.
Construction
NW- 2
The Nikitin NW- 2 was a direct evolution of the NW -1. The basic design was a low-wing design in composite construction without Abstrebung the wings to the fuselage. The fuselage was assembled as in all subsequent patterns in monocoque construction ( monocoque ). By extending the fuselage around 1.90 meters, she was heavier than the northwest -1. Due to the fact that the same motor using place, the performance could not be improved. In spite of the extended hull the unladen mass increased only marginally by 35 kilograms. Flight mass increased in this design but considerably since now up to 250 kilogram of fuel could be carried and thus the flight duration and range have been improved. The wing area has increased by almost a third and was revised in shape. The pilot's cockpit was pulled a few inches forward and was now about the middle of the wing roots. Thus, the pilot got a better view down. That was very important especially in land transactions. The capacity of the fuel tank is increased by more than three times. The sprung undercarriage was retracted in two special chassis fairings underneath each wing to the rear. In this case, the wheel remained in its upright position ( as seen in the direction of travel) and has not moved sideways as in many later aircraft types in the body. The NW -2 was also partially flown with a closed cabin. The 5-cylinder Shvetsov radial engine was covered with a NACA hood.
NW- 2to
The Nikitin NW- 2to should achieve as a result variant better flight performance. It was equipped with a 65 hp more payable MG -11 engine. Flight mass increased, although during the installation of the engine to 50 kg, but the top speed has been increased by 30 km / h. The machine completed successfully in 1938 the state tests. The Soviet Air Force bought ten aircraft that were built but has been postponed due to the production of the Yakovlev UT -2 OKB 30 and finally not realized.
NW-2bis/MG-31 ( UTI 5)
A further improvement learned the aircraft by the installation of an engine type MG- 31, which yielded nearly doubles the performance of the MG -11. In order to guarantee the recording of this more powerful engine, the NW- 2bis cell was enhanced in the front region. The name of this variant was NW-2bis/MG-31, but it was done for convenience as UTI -5 ( not to be confused with the two-seat La - 5 variant of S. A. Lavochkin, also called in the Air Force UTI designated 5). This aircraft was more than 40 pilots of the Research Institute of the Air Force ( GWF ) and the Ossoawiachim flown; all confirmed the excellent performance of this type after the tests were completed successfully in 1939. A total of 20 machines have been ordered, but not built due to lack of production capacity.
Use
Education and training fighter