by Allen Hazen
I recall reading somewhere that every GP-40 built went back to the factory for (under frame?) modifications. And I have seen a photo of a plain-black GP-40 identified as a loaner, built by EMD to substitute for units back "home" undergoing modification. (I think the unit was, after the end of the program, sold to the CMStP&P.)
What I haven't seen is any explanation of what this was about. Can anybody tell me what it was about the GP-40 that required after-sale modification by the builder? Or any other details about this episode?
What I haven't seen is any explanation of what this was about. Can anybody tell me what it was about the GP-40 that required after-sale modification by the builder? Or any other details about this episode?