Nikitin NV-6
The UTI -6 Nikitin (Russian Никитин УТИ -6) was a little aerobatic training aircraft. The einstielige biplane was designed by the Soviet designer W. W. Nikitin. The order was made in 1939 by the Ossoawiachim and was executed by the OKB 30.
History
Often referred to as NW- 6 could this aircraft will be completed in December 1940 and flown by the pilot and co-workers W. W. Shevchenko, as well as by Nikitin itself, since the intended specifically for this aircraft modified engine is not yet available. To use it as a school and training aircraft for the pilots of the Soviet Air Force, it had to be suitable for aerobatics. This was ensured by the special strength of the airframe and wing design, which were partly taken from the NW -1. Last but not least, the engine had a special carburetor, which ensured that the engine could be supplied in every flight situation with fuel, so also in the supine position.
To confirm the required load values , the corresponding static tests had to be performed at TsAGI. This went on until the beginning of the raid back to the Soviet Union. Despite the very good flight characteristics were found after no more time to develop the design. The UTI -6 was after the NW- 1 and of the stress forth for the " higher" aerobatics ideal in the series of Nikitin developments the second smallest machine. Because of their small dimensions, the pilots indicated this aircraft as " flying toy ".
Construction
The biplane UTI -6 was manufactured in composite construction. The hull was about 1.50 meters longer than that of the NW- 1 and was assembled from welded steel tube, which was partially covered with aluminum sheet up behind the open cockpit in one piece. The rear part of the fuselage was covered with plywood, which was then covered with linen yet. Finally, the fabric was provided with a weatherproof coating. A similar construction was also true for the wings to ( wing spars made of steel, aluminum fins and the cladding plywood with linen cloth ). The upper wing was not set to the trunk, but in the so-called Parasol - type (also known as canopy - type ) connected by four struts to the hull. So the pilot was below the upper wing an unobstructed view to the front.
Both wings were connected by a respective stable streamlined I- stalk, which were additionally braced again crosswise to the hull with steel ropes. A special feature of this biplane had yet: had the rear edge of the upper wing sweep angle of 8 degrees, the same as the front edges of both surfaces. The result was a rare combination of straight and swept- wing. The ailerons were located only on the lower wing. The aircraft had a fixed undercarriage, the wheels of which were streamlined covered by appropriate wheel hoods. Was powered by an engine of the type MG -11F, which made 165 hp. At lubricants and fuel, a total of about 100 kg could be carried.