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For one example of how it was done, perhaps refer to the following ILE paper: Class "25” Condensing Locomotives on the South African Railways - Design and Operating Experiences By Prof. Dr.-Ing. R. Roosen (Henschel-Werke) ILE (Institution of Locomotive Engineers) Paper #607, 1960 March It conta...

As far as I know, but not necessarily correct, EMD made the change to 27-pin MU jumpers with the F3 in the F-series and with the E-8 in the E-series. The later FT (and I think the F-2) had 21-pin jumpers, although the earlier FT appears to have had 17-pm. That needs verification, though. The E-7 (an...

The Trains 1968 December article “Lash “em Up” is useful reference. I have attached a scan of it in this and following postings. parts.

Trains 196812 p.44,45.jpg (1.45 MiB) Viewed 341 times

Trains 196812 p.46.jpg (323.91 KiB) Viewed 341 times

Trains 196812 p.47.jpg (330 KiB) Viewed 341 times

So basically an EMD version of ALCo's "World Locomotive" FA variant. It might be slightly easier to argue the negative on that proposition. Firstly, on the timeline: I do not know when the EMD B was first announced, but the first order, 40 of the A1A-A1A variant for the then Eastern Benga...

The second two (of four) pages on the Model B from the GM brochure:

GM DE Locos p.15.jpg (398.66 KiB) Viewed 565 times

GM DE Locos p.16.jpg (899.17 KiB) Viewed 565 times

The first two (of four) pages on the Model B from the GM brochure:

GM DE Locos p.13.jpg (655.84 KiB) Viewed 570 times

GM DE Locos p.14.jpg (428.63 KiB) Viewed 570 times

All eight pages of the EMD R brochure are included in the attached .pdf.

Cheers,

I have an EMD brochure, undated but probably from 1954 or 1955, that covers the export models R, B, G-12 and G-8. Here are a couple of pages from the R, broad gauge, and R, universal gauge sections: GM DE Locos p.07.jpg GM DE Locos p.11.jpg The equipment schedule was probably similar to that used fo...

That Trains article you are thinking of might be: “Why the H-10 was a Landmark Locomotive”, by Alan L. Bates, in the 1975 June issue. Let me know if you want a copy, and also of the LeMassena USRA 4-8-2 article.


Cheers,

Hi Allen: Yes, by itself, that reference to the USRA heavy 4-8-2 does look somewhat out of context. To expand somewhat, I was thinking in terms of the Robert Le Massena essay “The USRA Heavy 4-8-2 and its Illustrious Ascendants” (1). The claimed “ascendants” included various 4-8-2 and 4-8-4 designs ...

The D&H K-62 was probably a good example of a mid-sized 4-8-4. Although derived from the established Rock Island 4-8-4, it had some major as well as detailed changes, to the extent that one wonders how it got past the WPB stipulation that only existing designs be used. One could say that it was ...

In the run-up to the GE U50 and Alco C855 is that in 1962, UP had laid out its own idea for a 5000 hp, twin-engined locomotive. A drawing of this is shown at Don Strack’s “Utah Rails” site, at: https://donstrack.smugmug.com/UtahRails/Union-Pacific/UP-Miscellaneous/i-T95bPCR/A. This proposal was show...

The GTEL4500 prototype and the first production batch had Amplidyne excitation control, derived from established GE diesel-electric practice. The second batch had static excitation, although I imagine that the curves were similar. Perhaps not. In assuming curve similarity, I had overlooked the fact...