Once the darling of the "Russia builds great military hardware" crowd, the SU-57 (PAK-FA) has been plagued by performance and quality issues to the point that India might be bailing on the program. Indian Air Force wants out of fighter program with Russia Senior IAF leadership recently expressed apprehension to the Ministry of Defence, claiming the proposed FGFA program with Russia does not meet desired requirements like U.S. F-35 fighter type capabilities, disclosed a senior IAF official. That official added, that “IAF is not keen to continue with the program.” The proposed FGFA program does not meet desired stealth and cross section features compared to a F-35 fighter, the official explained, thus major structural changes are needed that cannot be met in the existing Russian prototypes. FGFA also does not have modular engine concept, making maintenance and serviceability of the fleet expensive and troublesome. A second service official said the modular engine concept is required for the fleet serviceability and availability of FGFA aircrafts at short notice, since it can be done by the user itself. Along with the big failure of the Armata tank program and most Russian naval designs never getting farther than plastic models in trade shows, Russia falls farther and farther behind as first tier world military power.