With Boeing and Airbus duopoly for the last three decades, West (in this RR, PW and GE) dominance in Jet Engine market is understandable. Even in Soviet era, they don't made twin engine wide bodies Airliner. Their only wide body is four engine that are more comparable to A-340. Sino-Russian team up on CR929 supposedly will come out with their own engine that are suitable for twin engine wide body Airliner. Even that only in the class of A-330neo or 787. Not in class of 777 or A-350. With that, they only can come out with non Western engine by second half of next decade at the soonest, thus the initial engine will used either GE new GEnX or RR Trent 7000 GE and Rolls Royce finalists for Chinese-Russian CR929 jet engine, designer says | Article [AMP] | Reuters Thus at most any challenges to big Western engine will not come for at least a decade.