117 engine intended for powering prototype of Pak Fa, has thrust of 33,000 lbf which is 14,969 KG.
When Prasun K Sengupta said that Super MKIs will have 15 ton engines, he was reffering to these beasts.
AL-31F M1 offers thrust of 30, 300 lbf whcih is 13,608 KG and it is already in production.
Could one of these engine be used on Super as ASEA radars, which will fitted on Super MKIs will demand more power.
For a (AESA) little more extra power can come from an alternate source, instead of going for a bigger engine as a remedy viz; Starter-Generator, which are permanently engaged to engine = Shunt generator.
Many gas turbine aircraft are equipped with starter-generator systems. These starting systems use a combination starter-generator which operates as a starter motor to drive the engine during starting. After the engine reaches a self-sustaining speed, the starting system operates as a generator to supply the electrical system power.