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The Polikarpov Ivanov was a 1930s prototype
Soviet
The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, ...
ground attack monoplane designed by
Polikarpov
Polikarpov Design Bureau was a Soviet OKB (design bureau) for aircraft, led by Nikolai Nikolaevich Polikarpov. Dux Factory was acquired by the USSR and became part of Polikarpov.
After the death of Polikarpov on 30 July 1944 at the age of 5 ...
for a soviet government procurement competition codenamed Ivanov.
Design
The Ivanov was an all-metal low-wing monoplane with a retractable
conventional landing gear
Conventional landing gear, or tailwheel-type landing gear, is an aircraft undercarriage consisting of two main wheels forward of the center of gravity and a small wheel or skid to support the tail.Crane, Dale: ''Dictionary of Aeronautical Term ...
and powered by a
Shevtsov M-62 radial engine.
It was fitted with four wing-mounted
ShKAS machine gun
The ShKAS (Shpitalny-Komaritski Aviatsionny Skorostrelny, Shpitalny-Komaritski rapid fire for aircraft; Russian: ШКАС - Шпитального-Комарицкого Авиационный Скорострельный) is a 7.62 mm calibre ...
s with a moveable turret-mounted
Berezin UBT
The Berezin UB (russian: УБ - Универсальный Березина) (''Berezin's Universal'') was a 12.7 mm caliber Soviet aircraft machine gun widely used during World War II.
Development
In 1937, Mikhail Yevgenyevich Berezin bega ...
fitted at the rear of the cockpit area.
Development
Two prototypes were under construction in 1938 and the first was tested from February to August 1938. The Ivanov was found to need better flying qualities and with the competing
Kharkov R-10 already in production the second prototype was not completed and the programme was abandoned.
Specifications
See also
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Kharkov KhAI-5
The Kharkiv KhAI-5, (sometimes Neman R-10) was a Soviet reconnaissance and light bomber aircraft, designed in the mid-1930s in the Kharkiv Aviation Institute (KhAI, - in Ukrainian: ХАІ), under the direction of Iosif Grigorevich Nyeman (someti ...
winner of the Ivanov competition
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Tupolev ANT-51
The Sukhoi Su-2 (russian: Сухой Су-2) was a Soviet reconnaissance and light bomber aircraft used in the early stages of World War II. It was the first airplane designed by Pavel Sukhoi. The basic design received an engine and armament up ...
a competitor in the Ivanvov competition
References
;Notes
;Bibliography
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{{Polikarpov aircraft
1930s Soviet attack aircraft
Ivanov