The F2 was apparently an F3 EXCEPT that it had the lower capacity main generator of the FT (and the engine downrated to 1350hp to match).
All published accounts I have seen agree that the F@ was introduced AFTER the first F# was built. (BUT: are they independent or did they copy one another?)
The old "Diesel Spotter's Guide" (not, as we know, an infallible source, but where many people interested in locomotive issues got their first course) says that the F2 was built because EMD was unable to produce the higher-rated generator.
Assuming the first (test? demonstrator?) F3 had an F3 generator, the new design must have been ready BEFORE the F2 was built. The war was over, so there shouldn't have been a problem with scarcity (& gov't regulation) of materials.
Is there a story here? Does anyone know what it is?
All published accounts I have seen agree that the F@ was introduced AFTER the first F# was built. (BUT: are they independent or did they copy one another?)
The old "Diesel Spotter's Guide" (not, as we know, an infallible source, but where many people interested in locomotive issues got their first course) says that the F2 was built because EMD was unable to produce the higher-rated generator.
Assuming the first (test? demonstrator?) F3 had an F3 generator, the new design must have been ready BEFORE the F2 was built. The war was over, so there shouldn't have been a problem with scarcity (& gov't regulation) of materials.
Is there a story here? Does anyone know what it is?