Difference between EMD F7 and F9

Nick8564

Member
I want to model the new Norfolk Southern F9A/F7B set, but I can only find F7As. What is the visible difference between them if any. The most I can find is a difference in engine and interior stuff. Thanks
 

91rioja

Member
Check out the October 2006 issue of Model Railroader; there is an article on page 60 that is a guide of F units. Hope this helps.
 

60103

Pooh Bah
IIRC, the F7-F9 development was a gradual morphing. Bits of detail on the body would be changed, then at one point the intenals were changed but the same bodywork was used (they had them in stock) and then the bodywork changed some more.
I think the same applied to the GP models.
 
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