Sukhoi bomber in 1937. The BB-1 was approved and under a July 29, 1939 government resolution, the Sukhoi OKB, designated as OKB-51, also known as the Sukhoi Design Bureau, was developed in order to set up production for the aircraft. The BB-1 was introduced and later adopted by the Soviet Air Forces in the same year. A year later, the BB-1 was later designated the Sukhoi Su-2. A total of 910 Su-2 aircraft were developed. The resolution also made Sukhoi chief designer, gave Sukhoi's team of the design bureau standalone status and relocation of the bureau to the Production Aircraft Plant
Sukhoi Su-57 produced, and some believe it to be an implicit announcement of the project's cancellation. The slowing of procurement could be because of the current slow growth of the Russian economy, while the future patches' procurement are for an unknown future; the Russian military could be waiting for the more powerful Saturn izdeliye 30 engine to be ready for serial production. On 22 August 2018, during the International Military-Technical Forum «ARMY-2018», the Russian Ministry of Defence and the JSC Sukhoi signed the first contract for delivery of two serial Su-57s. The contract should be finalized between 2018 and 2020. The prototype's