Quote:
Originally Posted by sgoti
The confusion is not from me.
GP (General Purpose) locomotives were all four-axle models.
SD (Special Duty) locomotives were all six-axle models.
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No sgoti, the confusion was certainly nor 'from you' - it was just my limited starting knowledge of this subject. All this may be common knowledge your side of the Atlantic - this side, we have to glean what we can from the internet. And: every little helps, thank you.