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Strange converted F unit information sought. Was previously discussed in an old MR magazine.

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Strange converted F unit information sought. Was previously discussed in an old MR magazine.
Posted by KibuFox on Friday, April 30, 2021 6:06 PM

So, this one is coming out of left field, completely, and forgive me for that.  I've been trying to track (no pun intended) information on a rather strange rebuild or conversion of an F unit that I remember reading about in a Model Railroader sometime in the past.  Sadly, in all my searches, I just turn up CF7's... so that isn't helping.

So, the locomotive in question, it started life as an F unit, possibly an F3, or F7. It operated in South America, or possibly Mexico.  It was also a one off due to its circumstances.

What made the locomotive unique, was how it looked, and reportedly how it came to be.

 

So, looking at it, at a glance, it looked like someone had taken the standard F unit cab, and placed it on a GP unit's body, complete with dynamic braking (if my memory serves.)

 

MR featured maybe one photo of a model of this strange locomotive, possibly under the "prototype for everything" article header. 

If memory serves, the story was that the railroad which owned this particular locomotive, had it, and a number of older GP units. There may have been a pair of F units, but I only remember the one.  Whatever the case, this locomotive was involved in an accident which did catastrophic damage to the rear of the locomotive. The GP may have also been involved in the accident, suffering similar damage to its cab end. Rather than scrapping the locomotives, the railroad (which the article seemed to suggest was cash strapped) chose to rebuild the F unit. They underwent their own version of a CF7 conversion of sorts, removing the GP long hood, and possibly its prime mover, and placing that on the back of the F unit. 

I model mainly in VR, which is to say my models are used in games like Rolling Line, or similar.  (I also happen to work as a 3d modeler for a living, and am currently working with the developer of a railway sim set in 1880, but that's beside the point.)  I can't help but think that this engine, though apparently a one off, would be worth modeling, and releasing for anyone to use as they see fit.  Let's face it, as CF7's go, it does make for a unique shape and design.

Does anyone know the locomotive I'm talking of, and if so, could you point me to information, or general dimensions of it so I could start work in replicating it?

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Posted by NVSRR on Tuesday, May 4, 2021 10:16 PM

I found that of which you speak.  i Have to look more in a while but it looks like there has been a write up about its build.   It has definitely a kitbasher special that for sure.

 

shane

A pessimist sees a dark tunnel

An optimist sees the light at the end of the tunnel

A realist sees a frieght train

An engineer sees three idiots standing on the tracks stairing blankly in space

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Posted by NVSRR on Tuesday, May 4, 2021 11:42 PM

 

Actually built from an Alco RS11 some scratchbuilding metal, and f unit parts.    Use "locomotive rebuild in mexico" to find the links and such

 

Shane

A pessimist sees a dark tunnel

An optimist sees the light at the end of the tunnel

A realist sees a frieght train

An engineer sees three idiots standing on the tracks stairing blankly in space

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Posted by NVSRR on Tuesday, May 4, 2021 11:43 PM

Other side

A pessimist sees a dark tunnel

An optimist sees the light at the end of the tunnel

A realist sees a frieght train

An engineer sees three idiots standing on the tracks stairing blankly in space

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Posted by mvlandsw on Wednesday, May 5, 2021 12:01 AM

The prototype for all of today's modern locomotives.

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Posted by SeeYou190 on Wednesday, May 5, 2021 7:58 AM

mvlandsw
The prototype for all of today's modern locomotives.

I was thinking the same thing. It looks like an anime version of a Dash 8-40 BW.

-Kevin

Wink Happily modeling my STRATTON & GILLETTE RAILROAD. A Class A line located in a personal fantasy world of semi-plausible nonsense on Tuesday, August 3rd, 1954.

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Posted by mikeGTW on Wednesday, May 5, 2021 9:50 AM

Mine from  a while back 

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Posted by BEAUSABRE on Thursday, May 6, 2021 8:33 AM

OH GAWD, MY EYES !

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Posted by M636C on Thursday, May 6, 2021 8:48 AM
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Posted by Overmod on Thursday, May 6, 2021 8:56 AM

SeeYou190
It looks like an anime version of a Dash 8-40 BW.

Keep in mind that FdelP had some M424W engines with angular cabs and ZWT trucks that are MUCH closer to that...

To me, the thing looks like it's channeling Ingalls:

https://i.redd.it/aybrt7sykxl01.jpg

Here is a side view of the cab of SLP-3 521 ready for the paint shop:

http://s3.amazonaws.com/rrpa_photos/1701/slp02-2.jpg

View from behind:

http://s3.amazonaws.com/rrpa_photos/1701/slp3f.jpg

Many undistorted pictures at railpictures.net once you know what to be looking for...


But I'm not sure this is actually the locomotive the OP was talking about.  This is not an F cab and a GP hood kludged on a common frame.  Descriptions of this SLP-3 indicate that it "represented some very sophisticated engineering and improvements" and that the cab was especially designed to be "ideal for use in Mexico".  We can easily find other products of the NdeM shops in San Luis Potosí such as SLP-4 6820 and 7294/7473.

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