Question: Which Soviet Union fighter aircraft, nicknamed "Sushka," uses the Saturn AL-31 engine?
Sentence (from "Saturn AL-31"): It produces a thrust of 123 kN (27,600 lb) with afterburning in the AL-31F, 137 kN (30,800 lb) in the AL-31FM (AL-35F) and 145 kN (32,000 lb) in the AL-37FU variants.
Relevant evidence: No