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Re: CTC on the Atlanta-Bham line
C J Wyatt
I wonder where Southern's first CTC installation was? Jack Wyatt
On Monday, October 4, 2021, 12:11:37 PM EDT, George Eichelberger <geichelberger@...> wrote:
Here’s an ATS/ATC map from 1947…. Now for a gripe! I have mentioned how much material there is in the SRHA archives many times. Actually, it’s pretty useless if people will not go to Chattanooga to see what’s there. I realize we are in the “Google” era and many people will not travel farther than their PC keyboards. Anyone is welcome...….Flame me off line if you wish…. Ike  On Oct 4, 2021, at 11:53 AM, James Walton <whovianwil@...> wrote: I realize now I should asked when TT&TO was done away with, rather than when CTC was implemented.
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Re: CTC on the Atlanta-Bham line
George Eichelberger
Here’s an ATS/ATC map from 1947….
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Now for a gripe! I have mentioned how much material there is in the SRHA archives many times. Actually, it’s pretty useless if people will not go to Chattanooga to see what’s there. I realize we are in the “Google” era and many people will not travel farther than their PC keyboards. Anyone is welcome...….Flame me off line if you wish…. Ike 
On Oct 4, 2021, at 11:53 AM, James Walton <whovianwil@...> wrote: I realize now I should asked when TT&TO was done away with, rather than when CTC was implemented.
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Re: CTC on the Atlanta-Bham line
James Walton
I realize now I should asked when TT&TO was done away with, rather than when CTC was implemented.
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Re: CTC on the Atlanta-Bham line
James Walton
Ah okay, I'd forgotten about ABS. The ancient TT&TO system was starting to disappear on many railroads by the 40s.
On Mon, Oct 4, 2021, 11:43 D. Scott Chatfield <blindog@...> wrote:
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Re: CTC on the Atlanta-Bham line
D. Scott Chatfield
The H Line south of Atlanta wasn't converted to CTC until, what, 1988? Scott Chatfield
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Re: Entering Card Lists in Spreadsheets
Hal Pridgen
I just thought I would point out that groups.io has a built in database feature that can be directly accessed from the groups.io web page. So if you read these posts on your email, you would never see this feature. It’s very basic, and not particularly user friendly until you get familiar with it. The data can be exported to excel or other spreadsheet format. It’s also searchable, but I don’t think that is one of it's strong points either.
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Re: CTC on the Atlanta-Bham line
George Eichelberger
Connecting control points and track circuits from along a route to CTC machines was not a trivial (or inexpensive) project. The Southern's C&S Dept. was innovative when they adapted the signaling (E&M in tech talk) leads from analog voice channels to individual control points. Getting CTC codes from dispatch centers to individual microwave towers was relatively easy but in most cases copper cables were used to extend the MW channels from the microwave towers to the CPs.
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Many of those cables dated to when buried cables replaced open wires on poles for line side telephones. Putting new cables in the ground to reach to MW towers that were around 20 miles apart for CTC was a significant cost. Now, the MW is all digital, data radio is used to get to most CPs and everything uses the Internet Protocols (TCP/IP) that provides alternate routes to everything. As far as I could determine, NS was the first railroad anywhere to use “IP” for train control on a large scale. (The NS entire data network, including Conrail, was my design. Southern’s (useful, usually) “if it ain’t broke” mentality made “selling” a radically new network idea really difficult. I have to compliment NS management on their decision to spend $50M to do the upgrade at the same time CSX was outsourcing everything to ATT. I’ll never forget David Goode asking “Do you realize you are asking me to spend $50M when CSX is getting rid of their comms systems?" The answer must have been good because it represents what I consider a competitive advantage for NS to this day!) Ike
On Oct 4, 2021, at 10:53 AM, James Walton <whovianwil@...> wrote: Odd to imagine TT&TO still being used so late. On Mon, Oct 4, 2021, 10:25 CARL ARDREY <carlardrey2005@...> wrote:
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Re: CTC on the Atlanta-Bham line
James Walton
Odd to imagine TT&TO still being used so late.
On Mon, Oct 4, 2021, 10:25 CARL ARDREY <carlardrey2005@...> wrote:
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Re: CTC on the Atlanta-Bham line
Carl Ardrey
CTC wasn't common on Western Lines. Southern liked to make sure the ROI was there.
CEA
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Re: CTC on the Atlanta-Bham line
James Walton
Woah, that's surprisingly late for such an important part of the Southern's network. Any reason it took so long?
On Sun, Oct 3, 2021, 09:19 CARL ARDREY <carlardrey2005@...> wrote:
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Re: Entering Card Lists in Spreadsheets
Charles Harris
Hi Interesting project.
Is it possible to add a photo of the complete page 1 form, including the first column and also the full from for page 2. What format is this in a the moment ? jpg? The spreadsheet that would be used is Excel ? An example of expected completed spreadsheet layout would be great with the expected result. Thanks Charles Harris  _._,_._,_
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Re: Entering Card Lists in Spreadsheets
Dave Queener
Ike, I would be happy to help with the F cards. Just assign the lower numbered ones to me, principally the wood cars, since that is what I have been working on already. Dave On 10/3/2021 1:54 PM, George
Eichelberger wrote:
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Re: Entering Card Lists in Spreadsheets
George Eichelberger
One other thing…..
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Having some form of lookup process will help is a big way. A single Card List can include different car series (note the three pairs of columns). Those series may/may not be from the same Specification. One CL can refer to multiple car series/specs but one Specification may have been used for different orders of basically the same car…those could point to different Card Lists. Confusing, I realize, but there is not rigid car series-Card List-Specification relationship. We can inventory the drawings but only by going through the drawings listed in the CLs will we discover drawing numbers we do not have. Ike
On Oct 3, 2021, at 1:54 PM, George Eichelberger <geichelberger@...> wrote: Would any SRHA members be interested in helping to catalog SRHA’s drawings by entering the pages on the different card lists into a spreadsheet? When that is done, we will link the pages from the Card List (F-Cards) to the drawing inventories Chris Hayes has been working on. Starting from the card list for a particular car, my example below is from Card List F-70 showing the drawings for 500 40’ auto boxes. Page 1 of F-70 is attached. The columns of the spreadsheet would be the same as Pg 1. That gives us the car-to-drawings list. A spreadsheet ”search” could locate any drawing number that had been entered, then the Cover of that F-Card would give us car information. Many drawings do NOT show which cars they were used on so we need a “reverse” lookup technique if we want to go farther than searching the drawing number, finding the F-Card, going to the F-Card’s Cover. The cover also may include the Specifications those cars were built under (those are in the archives as well). To make the work somewhat easier, the F-Cards used a standard form for any car type. As F-70 is for a box car, the entry for “cattle bar” (and others) at the bottom of the page is simply left blank. The first column of each of the F-Card’s seven or so pages will be different but a “cut and paste” could be done to avoid typing that after the first F-Card. The form did change periodically, think wood and steel cars would have very different drawings, but there are not that many different forms for the 237 or so F-Cards that have been scanned. Because the CLs are scanned, they can be emailed and folks can work on them wherever they are. We just need to coordinate the work. Contact me at archives@... if you are interested. Ike <F-70 Pg1.jpeg>
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Entering Card Lists in Spreadsheets
George Eichelberger
Would any SRHA members be interested in helping to catalog SRHA’s drawings by entering the pages on the different card lists into a spreadsheet? When that is done, we will link the pages from the Card List (F-Cards) to the drawing inventories Chris Hayes has been working on. Starting from the card list for a particular car, my example below is from Card List F-70 showing the drawings for 500 40’ auto boxes. Page 1 of F-70 is attached. The columns of the spreadsheet would be the same as Pg 1. That gives us the car-to-drawings list. A spreadsheet ”search” could locate any drawing number that had been entered, then the Cover of that F-Card would give us car information. Many drawings do NOT show which cars they were used on so we need a “reverse” lookup technique if we want to go farther than searching the drawing number, finding the F-Card, going to the F-Card’s Cover. The cover also may include the Specifications those cars were built under (those are in the archives as well). To make the work somewhat easier, the F-Cards used a standard form for any car type. As F-70 is for a box car, the entry for “cattle bar” (and others) at the bottom of the page is simply left blank. The first column of each of the F-Card’s seven or so pages will be different but a “cut and paste” could be done to avoid typing that after the first F-Card. The form did change periodically, think wood and steel cars would have very different drawings, but there are not that many different forms for the 237 or so F-Cards that have been scanned. Because the CLs are scanned, they can be emailed and folks can work on them wherever they are. We just need to coordinate the work. Contact me at archives@... if you are interested. Ike 
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Re: CTC on the Atlanta-Bham line
Carl Ardrey
1981
CEA
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CTC on the Atlanta-Bham line
James Walton
Does anyone know when the Southern's Atlanta-Birmingham line converted to CTC?
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Re: What car does this drawing show?
Dave Queener
Hey Ike, I did not get an attachment. Dave On 10/1/2021 2:07 PM, George
Eichelberger wrote:
Attached is one of the very few linens in the SRHA collection that does not have a title block or date. It is obviously a box car but the odd strapping on the sides of the car suggests it is a wood side car with bracing on the outside. The drawing date is probably prior to 1920 and it’s a 36’ car so we know it is not all-steel. -- Owner, Cumberland Model Engineering www.CumberlandModelEngineering.com (865) 333-5712 Pastor, St. Paul Presbyterian Church www.StPaulPres.com (865) 209-5654
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What car does this drawing show?
George Eichelberger
Attached is one of the very few linens in the SRHA collection that does not have a title block or date. It is obviously a box car but the odd strapping on the sides of the car suggests it is a wood side car with bracing on the outside. The drawing date is probably prior to 1920 and it’s a 36’ car so we know it is not all-steel.
Because we have the linen (original drawing) it does not appear to be a proposed design from a car builder. Any ideas? Ike 
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Re: Gift and Challenge
George Eichelberger
I’ve attached two examples from Card Index ("F-Card”) F-13 that Dave mentioned. Virtually all of the F-Cards for Southern railway freight cars and passenger cars (P-Cards) are in the SRHA archives. As you can see from David’s research, they are the “Rosetta Stone” for using the rolling stock drawings.
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F-13 is somewhat unusual because it includes drawings for three different series of cars using the same basic design. As he mentioned, SF-1013 is shown for cars 13100 to 14099. (Most drawings do not specify the cars they illustrate, the Card Lists are invaluable.) Card lists are typically about seven pages using a standard form for all types of cars. Thus blank entries are not missing drawings, that item is not used on the Card’s car. The form changed from the wooden to steel car eras. Ike PS We have been thinking about doing an on-line presentation of drawings and many other topics. Without help getting things like that done, guessing at a schedule is not possible.  
On Sep 30, 2021, at 10:59 AM, Dave Queener <dave@...> wrote: Hi Ike, SF-1013 is the Haskell & Barker built version of the 30 Ton
Standard Boxcar shown on SF-1002. SF-1013 is referenced on F Card
F-13, Column A, as the general arrangement drawing for SR box cars
numbered 13100 to 14099. From my research among the aperture
cards, the SRHA has almost every part drawing for one of these
cars. These have already been scanned, and should be on the hard
drive of the main archives computer. I used general arrangement SF-1002, which you very kindly gave me access to several years ago, along with Card F-15, column A, to create my AutoCAD drawings of one of these cars, namely AC&F built car #15873, from which I based by F scale kit. I am now working up a SolidWorks version of the same for a much improved, and more detailed, 1/20th scale kit. I should add that the main differences between the Haskell &
Barker car and the AC&F version are the cast steel body
bolster and draft rigging that H&B used, necessitating
different spacing of the intermediate sills. H&B also omitted
the Jones door hardware and most likely the sheet metal hood
covering the door track in favor of their own hardware, for which
the SRHA has a part drawing. Here are pics of two of these cars: <SR 15873 Wooden Boxcar (1).jpg> <SR 183318(crop).jpeg> Cheers, Dave Queener (865) 209-5654 (c)
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Re: Gift and Challenge
George Eichelberger
All:
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SRHA member Dave Queener has done some super work organizing, scanning and using material in the archives. His work spans from the wooden car era to organizing the EMD and ALCo drawings and aperture cards. His “F” scale work is outstanding! I’ve tried to convince him to use his CAD/CAM and machine shop expertise to produce trucks and parts and castings, up to complete kits. (All started with him going to the SRHA archives….) I hope several of his F scale models will find a home in the new TVRM museum. If anyone in the group has similar interests, I suggest contacting him (off line). Ike
On Sep 30, 2021, at 10:59 AM, Dave Queener <dave@...> wrote: Hi Ike, SF-1013 is the Haskell & Barker built version of the 30 Ton
Standard Boxcar shown on SF-1002. SF-1013 is referenced on F Card
F-13, Column A, as the general arrangement drawing for SR box cars
numbered 13100 to 14099. From my research among the aperture
cards, the SRHA has almost every part drawing for one of these
cars. These have already been scanned, and should be on the hard
drive of the main archives computer. I used general arrangement SF-1002, which you very kindly gave me access to several years ago, along with Card F-15, column A, to create my AutoCAD drawings of one of these cars, namely AC&F built car #15873, from which I based by F scale kit. I am now working up a SolidWorks version of the same for a much improved, and more detailed, 1/20th scale kit. I should add that the main differences between the Haskell &
Barker car and the AC&F version are the cast steel body
bolster and draft rigging that H&B used, necessitating
different spacing of the intermediate sills. H&B also omitted
the Jones door hardware and most likely the sheet metal hood
covering the door track in favor of their own hardware, for which
the SRHA has a part drawing. Here are pics of two of these cars: <SR 15873 Wooden Boxcar (1).jpg> <SR 183318(crop).jpeg> Cheers, Dave Queener (865) 209-5654 (c)
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