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Tupolev ANT-3
Tupolev acquired much experience in building his first two aircraft, which he put into the next one, the ANT-3. By this time, Soviet Air Force leaders were convinced that metal was a highly usable substance in the building of airplanes. So, Tupolev guided AGOS- TsAGI in creating the first Soviet all-metal aircraft. The ANT-3 was Tupolev’s first practical plane.
==Construction and Development==
On August 1, 1924, design work started for the ANT-3. The following July, the prototype was finished and came out of the AGOS factory. It was a sesquiplane, where the lower wing is somewhat shorter than the upper one. Its first flight was on August 6, conducted by V. N. Fillipov, who tested planes for TsAGI until the upcoming October.
The Air Force ordered several ANT-3s after they were pleased with the results of tests led by Mikhail Gromov. However, they could not have as many as they wanted due to a shortage of metal. Nonetheless, the Soviets used it for propaganda.
Because these ANT-3s were for military usage, they were designated R-3, the R standing for ''Razvedchik'' ("Reconnaissance").
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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