AT 1935 g. Osoaviakhim and the newspaper "Pravda" organized a mass of light-flight training and sports aircraft. To participate in the flights of aircraft allowed, the last stage of factory flight tests and presented to the public no later than 1 June 1935 g. By this time in the KB AS. Yakovlev was almost double built sports and training aircraft AIR-10. Retaining the basic dimensions of its previous aircraft AIR-9bis, Yakovlev has greatly improved and simplified plane. AIR-10 by this time have not had time to prepare. The first flight of the aircraft, piloted by test pilot YI. Piontkovsky, done 11 July 1935 g.
The next day, 12 July, at the Tushino airfield for the party and government leaders was arranged showing the achievements of athletes Osoaviahima. plane AS. Yakovlev liked and was praised. Aircraft fate was sealed. In a short time ended test aircraft, and it was adopted as the primary training aircraft. Given its high flight data and rapid passing tests, AIR-10 was allowed to participate in the flight, despite the delay in time. Additionally aircraft AIR-10, preparing for competitions several aircraft of other designers - all 34 cars. Start was appointed to 2 September 1935 g. circular route. The flight lasted for eight days, and the plane AIR-10 has won first place in it. Second place went to the plane KAI-1 Kazan Aviation Institute, and the third was the aircraft G-20 VK design. Gribovskogo. Air-10, received then the name of the UT-2, It was launched in large series, which lasted until the end of 1944 city, and to 1948 g. was the primary training aircraft in flight schools of the Air Force. Compared with the Po-2 aircraft was more strict in management and was much closer to the combat aircraft of the time. In total for this time it was released more 7200 machines UT-2. UT-2 with floats was established several world speed records in the class of light vehicles.
The aircraft was a double nizkoplan with fixed landing gear. VT-2 has a simple structure tselnoderevyannaya, made of the most common materials, engine M-11 T capacity 110 HP. wing wood, dvuhlonzheronnoe consisted of two detachable parts and the center section. Covering wing fanernaya, It was attached to the frame on the casein glue and nails, then paste over with a cloth, putty, carefully smooth out and stained. To enter the convenience of the cab to the left of center on the surface there was a ladder of pine slats. Fuselage had truss, fitted by plywood and canvas. Chassis - fixed landing pyramidal, a removable fairings from duralumin. Caudal crutch spring group of steel plates.
Shortly after the start of operation of the UT-2 began receiving complaints about its poor snap characteristics. Most of the work on the study of the spin on the UT-2 had a leading engineer of OKB AA. Sinitsyn and test pilot V.L.Rastorguev. It has been proven, that the aircraft under competent actions of the pilot goes well from a flat spin. Recommendations on the method of withdrawal proved to be very simple and affordable. During the war, have been isolated cases of UT-2 used as a light bomber, from 200 kg bombs. Sometimes aircraft armed with machine guns and hung ShKAS missiles.
Performance characteristics UT-2
– chief designer: A. FROM. Yakovlev
– First flight: 11 July 1935 of the year
– years of production: 1938—1948
– units produced: 7243
Crew UT-2
– 2 man
Dimensions UT-2
– Length: 7 m
– Wingspan: 10,20 m
– Height: 3 m
– wing area: 17,12 quarter. m
Weight UT-2
– empty weight: 616 kg
– Curb weight: 938 kg
Engine UT-2
– 1 × M-11
– engine power: 1 × 110 l. from.
Speed UT-2
– full speed: 205 kmh (near the ground), 183 kmh (on high 2500 m)
– Cruising speed: 160 kmh
Flight range UT-2
– 230 km (at speed 150 kmh)
Practical ceiling UT-2
– 3500 m
Photo UT-2
Three-dimensional diagram of the aircraft UT-2M
