Overview
- Rostec and UAC said a Su-57 conducted its first flight with the Izdeliye 177 installed, flown by honored test pilot Roman Kondratyev, and the sortie proceeded as planned.
- United Engine Corporation developed the powerplant, which is claimed to deliver about 16,000 kgf (roughly 35,000 lbf) of afterburning thrust with lower fuel consumption and increased durability.
- The start of integrated flight tests marks a step away from the interim engines that have powered earlier Su-57s, a long‑running hurdle for the program.
- UAC stated it is expanding production capacity to raise deliveries to Russia’s forces and is promoting an export variant of the fighter.
- UAC released imagery showing the new engine on the jet’s port side with a serrated nozzle, while independent validation of performance claims and re‑engining timelines has not been detailed.