Sukhoi/HAL FGFA Su-57, the foundation for FGFA's development, among many things the degree of low observability allowed by the design being the biggest of issues. However, Indian officials did not rule out the possibility of relaunching the FGFA project once the Su-57 is fully introduced into the Russian air force, or later acquiring the fully developed platform. On 19 August 2018, it was reported that the FGFA program was not cancelled; the President of the Russian United Aircraft Corporation said that is was just rumours, and that India was still working with Sukhoi on the FGFA program. Although there is no reliable
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