The Sukhoi Su-12 ( Aircraft RK ) was a prototype Soviet reconnaissance and artillery spotter aircraft developed during World War II .
6-610: In November 1943, the Sukhoi OKB designed an artillery spotter aircraft based on the German Focke-Wulf Fw 189 . As designed, the aircraft had a crew of three and was powered by a pair of Shvetsov M-62 engines. The aircraft was initially denied funding but was eventually approved thanks to an intervention by the Soviet Chief Marshal of Artillery N.N. Voronov . As a result of evolving specifications,
12-477: The Soviet era , OKBs were closed institutions working on design and prototyping of advanced technology , usually for military applications . The corresponding English language term for such a bureau's activity is R&D or " research and development ." For security, each bureau was only officially identified by a number, but were often semi-officially referenced by the name of its lead designer. For example, OKB-51
18-641: The Sukhoi Design Bureau to secure funding and continue work on the Su-12 were denied. Data from Shavrov, and OKB Sukhoi General characteristics Performance Armament Aircraft of comparable role, configuration, and era OKB OKB ( Russian : ОКБ ) is a transliteration of the Russian initials of " опытно-конструкторское бюро " – opytno konstruktorskoye byuro , meaning 'experiment and design bureau'. During
24-457: The crew was increased to four and the engines were changed to more powerful Shvetsov ASh-82 M with 1,640 kW (2,200 hp). The Su-12 prototype flew on 26 August 1947 with N.D. Fikson at the controls. The test flight program was completed by 30 October. Due to problems with the ASh-82M engines, the powerplant was changed to ASh-82FN making 1,380 kW (1,850 hp), but while reliable,
30-680: The less-powerful engines caused the Su-12 to miss its top speed and service ceiling specifications. The Su-12 successfully completed government testing in September 1949 and was recommended for production. Due to lack of production capacity in the USSR, in October 1949 it was proposed to build the airplane in Czechoslovakia . However, the application for production was denied, citing failure to meet performance specifications. Subsequent efforts by
36-513: Was led by Pavel Sukhoi , and it eventually became known as the OKB of Sukhoi . Successful and famous bureaus often retained these names after the death or replacement of their founding designers. These relatively small state-run organisations were not intended for mass production of aircraft, rockets, or other vehicles or equipment which they designed. However, they usually had the facilities and resources to construct prototypes. Designs accepted by
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