Overview
- Rostec and United Aircraft Corporation said the first Su-57 flight with the Product 177 powerplant took place on December 22, initiating a formal test program.
- Honored test pilot Roman Kondratyev conducted the sortie, which proceeded as planned according to the companies.
- United Engine Corporation cites afterburning thrust of about 16,000 kgf (roughly 35,000 lbf), reduced fuel consumption across operating modes, and increased service life.
- UAC released imagery showing the new engine fitted on the left side with a serrated nozzle, distinguishing it from the older engine on the right.
- UAC reports expanded Su-57 production capacity to boost deliveries and support exports, while external reports of foreign sales remain limited and unconfirmed.