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__NOTOC__ The Yakovlev UT-1 ((ロシア語:УТ-1)) was a single-seater trainer aircraft used by the Soviet Air Force from 1937 until the late 1940s. ==Development== The UT-1 was designed as a single-seater advanced trainer and aerobatic airplane by the team led by Alexander Sergeevich Yakovlev. The first prototype, designated the AIR-14, was flown in early 1936.〔Gunston 1995, 457〕 The AIR-14 was a small low-winged monoplane with a fixed tailwheel undercarriage, with a welded steel fuselage and a wooden wing. After some changes, the AIR-14 was accepted for production. Among other improvements, the 75 kW (100 hp) Shvetsov M-11 radial was changed to the more powerful 86 kW (115 hp) M-11G. The plane received the designation UT-1 (''uchebno-trenirovochnyi'' , primary/advanced trainer); despite this designation, it was not suitable for primary training. The UT-1 was used as a transitional type between the UT-2 and fighters like the I-16. It was not easy to fly, requiring precise piloting, thus forming an ideal intermediate between basic trainers and the maneuverable but tricky to fly I-16. In 1939 the plane was modified by moving the engine 26 cm (10 in) forward, which improved its handling. During production, the 112 kW (150 hp) M-11E engine was also used. Soviet pilots broke several records on the UT-1 before the war, some on its floatplane variant. In total, 1,241 aircraft were built between December 1936 and 1940.〔 During World War II, from 1941, the UT-1 was also used for reconnaissance. Some were used as improvised combat machines, after fitting with underwing machine guns or even 2 unguided rockets. In February 1942, about 50 UT-1 were converted in workshops as improvised ground attack planes UT-1B (УТ-1б), fitted with two machineguns and 2-4 rockets. They were next used in the Black Sea Fleet aviation in Sevastopol and Caucasus. The survivors were disarmed in December 1942. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Yakovlev UT-1」の詳細全文を読む スポンサード リンク
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