Russia has begun flight testing the Su‑57 fitted with a new fifth‑generation engine, Izdeliye 177 (Product 177), marking a propulsion milestone for the type. The tests, run by United Aircraft with United Engine Corporation and Rostec, aim to boost performance, production and exportability.
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Briefing
Flight testing of the Izdeliye 177 on the Su‑57 is a propulsion milestone announced by UAC and United Engine Corporation (Rostec) that explicitly aims to improve performance, increase production capacity and support future exports.
United Engine's ongoing ground‑test progress, including recent PD‑8 torrential rain ingestion tests, highlights continued development of domestic Russian engine capabilities that underpin the Izdeliye 177 programme.
The effort sits alongside Rostec's broader push for import‑substitution and re‑engining initiatives, for example its study into re‑engining the Sukhoi Superjet 100, indicating a coordinated industrial strategy on propulsion and airframe modernisation.
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(RU) Engine 177S — the time has come • aex.ru
(PT) Su-57 ‘Felon’ completes first flight with Izdeliye-177 engine • forcaaerea.com.br
Russia Flies Su-57 With New Fifth-Generation Engine for the First Time • frontierindia.com
Rostec conducts 1st flight of Su-57 equipped with new 5th-gen engine • defensehere.com
Russia conducts first flight of Su‑57 with new 35,000 lbf fifth‑generation engine • interestingengineering.com
Russia’s Su‑57 ‘Felon’ begins flight tests with Izdeliye‑177 next‑generation engine • theaviationgeekclub.com
Su-57’s New Engine Takes Flight: How Izdeliye-177 Improves on Older Powerplants • jetlinemarvel.net
(NL) Russia begins test flights with more powerful turbofan for Su-57 'Felon' • pilootenvliegtuig.nl
Russia’s Su-57 Flies with New Izdeliye 177 ‘Gen. 5’ Engine • The Aviationist
Russia’s Su-57 Flies with New 'Product 177' Next-Generation Engine for First Time • militarywatchmagazine.com
Russia Begins Flight Tests of Product 177 Engine on Su-57, Advancing Next‑Gen Fighter Engine Program • aerospaceglobalnews.com
Russia flies Su-57 with Product 177 engine for the first time • Air Data News