I believe the three units presently stored in Altoona are the three f-units you are talking about 2 "A"s and a single "B"...
Just so we can all see what we are talking about, here are some images of the units being discussed.
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| NS F units http://www.rypn.org/forums/viewtopic.php?f=1&t=36148 |
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| Author: | southern154 [ Thu Jan 23, 2014 10:35 pm ] |
| Post subject: | NS F units |
With the talk of the Stream Liner Event in Spencer this year, what is going on with NS's 3 "new" F units they bought? I saw a picture of one being towed to Altoona last February and made me think of it. |
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| Author: | wilkinsd [ Fri Jan 24, 2014 4:31 pm ] |
| Post subject: | Re: NS F units |
More importantly, will these "new" F units be painted green? |
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| Author: | southern154 [ Fri Jan 24, 2014 7:44 pm ] |
| Post subject: | Re: NS F units |
wilkinsd wrote: More importantly, will these "new" F units be painted green? I don't know, but considering they were all marked SOU # etc. I would not be surprised! |
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| Author: | Reading 900 [ Fri Jan 24, 2014 9:18 pm ] |
| Post subject: | Re: NS F units |
They would be nice in green, but they were marked Sou # just for shipping to Altoona. My guess is that those F units would be taken down to the frame and rebuilt from the ground up, they were very rough. Haven't the in-service F units been converted to ac traction? Seem to remember reading that when NS replaced the electrical cabinets in them. Alan |
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| Author: | NH0401 [ Fri Jan 24, 2014 9:40 pm ] |
| Post subject: | Re: NS F units |
The NS F-units are all conventional DC traction. The B units have had their DC main generators replaced with AR-10 main alternators-the A units have not. The issue is this: On an F unit, the air compressor is close-coupled to the DC main generator. The AR-10 has no provision for doing this. Accordingly, the layout of the machinery on the B units was substantially revised in order to drive the compressor off the free end of the engine. Performing this same modification on the A units will be a challenge on account of space constraints. Dave |
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| Author: | Mr.Pullman [ Fri Jan 24, 2014 10:04 pm ] |
| Post subject: | Re: NS F units |
I believe the three units presently stored in Altoona are the three f-units you are talking about 2 "A"s and a single "B"... Just so we can all see what we are talking about, here are some images of the units being discussed.
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| Author: | Reading 900 [ Sat Jan 25, 2014 11:46 am ] |
| Post subject: | Re: NS F units |
Thanks Dave for the explanation and Steven for the photos. I understand that one of the electrical panels from an executive F was donated by NS to go in one of the Lackawanna F's at Steamtown. Either way, after those engines go through the Altoona shops they'll look and run great! Alan |
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| Author: | filmteknik [ Sat Jan 25, 2014 11:50 pm ] |
| Post subject: | Re: NS F units |
Did the AR10's come with Dash 2 electronics? Steve |
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| Author: | Gary Gray [ Sun Jan 26, 2014 12:39 am ] |
| Post subject: | Re: NS F units |
Conjecture seems to be popping up here also. From experience I tend to lean towards "Occam's razor". Could it be that these units were simply purchased as "parts cars" for the OCS F-units....... |
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| Author: | Unseenthings [ Sun Jan 26, 2014 9:47 am ] |
| Post subject: | Re: NS F units |
Gary Gray wrote: Conjecture seems to be popping up here also. From experience I tend to lean towards "Occam's razor". Could it be that these units were simply purchased as "parts cars" for the OCS F-units....... I would agree that most if not all of these will never see service again. |
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| Author: | Bulby [ Sun Jan 26, 2014 12:24 pm ] |
| Post subject: | Re: NS F units |
Gary Gray wrote: Conjecture seems to be popping up here also. From experience I tend to lean towards "Occam's razor". Could it be that these units were simply purchased as "parts cars" for the OCS F-units....... Quote: The NS F units share the same basic specifications as a GP38AC or GP38-2 geared for passenger service. They share no major components with original F units. If the above (from http://www.altoonaworks.info/rebuilds/ns_funits.html) is true, the only things that NS could get as parts are the trucks and the bodies. The F7b they purchased is clearly lettered as a slug; why would NS purchase a slug to give parts to powered engines when its only components (trucks/traction motors) are available without buying the locomotive and shipping it to Altoona? If they only bought these for parts, they went to a lot of trouble to get those parts. |
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| Author: | NH0401 [ Sun Jan 26, 2014 12:43 pm ] |
| Post subject: | Re: NS F units |
Quote: Did the AR10's come with Dash 2 electronics? No. NS used TMV (microprocessor-based) controls. Observed with my own two eyes. Altoona works is incorrect. I wouldn't underestimate JLS's ability to perform just about any task with respect to locomotives-including erecting new locos. Dave |
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| Author: | Reading 900 [ Sun Jan 26, 2014 4:06 pm ] |
| Post subject: | Re: NS F units |
My thinking is that if you're going to tear a loco down to the frame and trucks and get rid of all else, then start on loco's that are already at that point. I don't see where NS needs more executive F's but then again I don't run the company. JLS can make those shells into really nice F38's! Alan |
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| Author: | filmteknik [ Sun Jan 26, 2014 4:41 pm ] |
| Post subject: | Re: NS F units |
Why not an F70PH powered by a 16-710? It would probably go like a rocket. Steve |
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| Author: | PaulWWoodring [ Sun Jan 26, 2014 5:02 pm ] |
| Post subject: | Re: NS F units |
Still limited to 79 mph on NS' own tracks and probably 100/110 on the NEC. It's all in the gearing anyway. So, you get the capability of having an A-B-B-B-A set of power with one or two spare A units in case one of the current ones breaks down. |
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