Answer / zahid hussain

9 = Its third stage / exhaust is 9ft and you will observe
the same for other frames i.e. 7 & 5 etc

E = Model

Answer / jayant c dusane

9 means frame size and f is the class size in 9FA

and 9FE means frame size is 9 and class is E

Answer / theo vissers

GE 9FA 400MWATT STEAM TURBINE FOR PRODUCING ELECTRICITY

GE-9E 145MWATT

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