Russia has for the first time flown a Su-57 fighter with the new Product 177 engine, according to Rostec’s press service. The Product 177 engine worked normally and reliably during the first flight, reported the General Designer–Director of the A. Lyulka Design Bureau, a branch of PJSC UEC-UMPO of the United Engine Corporation, Evgeny Marchukov. … Continue reading Russia’s Su-57 Thunders With Product 177; Rostec Confirms Stealth Jet’s First Flight With New Power Plant