Lenta (citing Interfaks) says a source close to ODK General Director Vladislav Masalov says a PAK FA with the “second phase” engine will fly in 2017.
He reportedly said the “second phase” engine will replace “item 117” and give PAK FA supercruise capability while being 15-18 percent more fuel efficient and cheaper to maintain.
Lenta notes the developmental engine is “item 30” not “item 129” as cited previously in Russian media.
The AL-41F1 is “item 117.” Current PAK FA prototypes and the Su-35S have “item 117S” (AL-41F1S) engines.
Recall, in 2010, ODK along with NPO Saturn hoped the “second phase” engine would fly by 2015. However, OAK President Pogosyan was considerably less sanguine, saying that the advanced engine might come in 2019, or later.