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Yakovlev UT-1 Aircraft Information

Yakovlev UT-1

Yakovlev UT-1

Warbird Picture - Yakovlev UT-1

Picture - Yakovlev UT-1

Role: Trainer/Fighter Trainer/Aerobatic
National origin: USSR
Manufacturer: Yakolvlev
Designed by: Aleksandr Sergeyevich Yakovlev
First flight: 1936
Number built: 1,241

The Yakovlev UT-1 (Russian: УТ-1) was a single-seater trainer aircraft used by the Soviet Air Force from 1937 until the late 1940s.


The UT-1 was designed as a single-seater advanced trainer and aerobatic airplane by the team lead by Alexander Sergeevich Yakovlev. The first prototype, designated the AIR-14, was flown in early 1936. 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 {учебно-тренировочный}, 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.

Airplane Picture - Germans inspecting UT-1

Picture - Germans inspecting UT-1

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.


There were a large number of variants, the most numerous or noteworthy were:-

AIR-14 - Prototype of UT-1
AIR-18 - UT-1 with a 104 kW (140 hp) Renault Bengali 4 inline engine and closed canopy, retractable undercarriage.
AIR-21 (Ya-21, UT-21) - UT-1 with 164 kW (220 hp) Renault Bengali 6 engine, tested in 1938-39, fixed undercarriage.
UT-1b - Wartime attack version with 2 x ShKAS machine guns and 2 or 4 RS-82 rockets.
UT-1E - (UT-1(15) For tests at TsAGI (sometimes confused with AIR-15, which was not a variant of UT-1).
UT-1 Floatplane - with M-11Ye engine which later became standard in the majority of UT-1's.


Soviet Union

Soviet Air Force
Soviet Naval Aviation


Chinese Nationalist Air Force

Specifications (UT-1 with M-11Ye)

Data from Gordon 2005 and Gunston 1995

General characteristics

Crew: 1
Length: 5.75 m (18 ft 10 in)
Wingspan: 7.3 m (23 ft 11 in)
Height: 2.34 m (7 ft 8 in)
Wing area: 9.58 m (103 ft)
Empty weight: 429 kg (946 lb)
Gross weight: 597.5 kg (1,317.5 lb)
Powerplant: 1 x Shvetsov M-11Ye, 111 kW (150 hp)


Maximum speed: 257 km/h (160 mph)
Range: 670 km (419 miles)
Service ceiling: 7,120 m (23,360 ft)
Rate of climb: 7.4 m/s (1,457 ft/min)


2 x 7.7mm ShKAS machine guns (Attack version)
2 or 4 x RS-82 (Raketnyy Snaryad) (Attack Version)

Related development

Yakovlev UT-2

Gordon, Yefim. (1989). OKB Yakovlev. London: Ian Allan. pp. 36 to 45.
Gunston, Bill (1995). The Osprey Encyclopedia of Russian Aircraft 1875-1995. London: Osprey.

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Source: WikiPedia

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