Article 117S is NPO Saturn manufactured vectored thrust engine for he ne SU-35, themselves a major upgrade of the AL-31F, with greater thrust, longer service life and better economy. The 117S engine was able to raise maximum thrust from 12.5 to 14.5 tonnes A new fan propeller with the diameter increased from 905 millimeters to 932 millimeters, new high and low pressure turbines and a new digital control system were used on the engine. With this engine, the new SU-35 is the most maneuverable fighRead More....