IIRC Normally an aircraft airframe can use upto 3 Russian type engines in its lifetime ?? So 100 or even 500 engines may not be that many aircraft.

• （我没记错的话，通常一架飞机的全寿命期间需要三台俄制的发动机？？所以100甚至500台发动机也不意味着很多架飞机）