I love this. Thanks... all you smart people. The chart now has
S-4B added.
If a viewer just joined this thread, this chart is on the BRHS web
site at this URL below. Note this is in the Members Only space.
Log on first, then click on this URL. ¯\_(ツ)_/¯
https://www.burlingtonroute.org/members_only/secured/steam_roster/steam_locomotive_classifications.php
On 12/9/2024 8:55 AM, Louis Zadnichek
via groups.io wrote:
December
9, 2024
Bill
- You're right, the oil burning 4-6-4s were indeed Class
S-4B. Look at the February 1952 Assignment Sheet on page
293 of the Corbin Book. Under the Lines West - McCook
Division, the 4002 and 4003 are listed as Class S-4B with
the side notation as oil burner. So, Jack can add that to
his Classification Chart - Louis
In a message dated 12/8/2024 9:50:22 PM Central Standard Time,
clipperw=gmail.com@groups.io writes:
Louis,
You maybe correct. However, several photos of 4002
and 4003 show the class designation in brighter gold
than the rest of the lettering. However, the photos
aren’t clear enough to determine what is actually
shown.
Bill Barber
December
8, 2024
Bill
- In a word, "Brilliant!" One question, I've
never seen an S-4B designation. Please elaborate
where you have - Louis
Louis
Zadnichek II
Fairhope,
AL
In a message dated 12/8/2024 6:16:28 PM Central
Standard Time, clipperw=gmail.com@groups.io writes:
Jack,
Here are a couple of comments concerning
your locomotive chart.
1. The H class 2-6-0s should be shown as
“moguls” not switchers as they were
originally purchased as road locomotives.
Some, indeed, were used in switching and
branch line service in later years and some
were converted to 0-6-0 switchers and
reclassified in the G series.
2. Unfortunately, over the years, the Q
wasn’t consistent with its use of sub letter
designation. It most cases, the sub letter
“A” meant that the locomotive had been
modified from its as delivered configuration
and upgraded. There were exceptions, most
notable was the O1A class 2-8-2s. They were
delivered as O1As from the factory starting
in 1917 and continuing through 1923. They
carried the “A” designation as they included
significant improvements over the 60 O1
2-8-2s delivered several years earlier. Over
the seven years of the O1A production run,
further improvements were made, but with no
change in the sub designation. The B1 and
B1A mountains were similar. The first
delivery were classed as B1 while the second
group incorporated some improvements (most
notably bigger tenders with six wheel
trucks) and were classified B1A.
3. The Q regularly upgraded older
locomotives, sometimes with significant
changes, and would reclassify the upgraded
locomotives. As an example, many S1 4-6-2s
were upgraded with new cylinders, valve gear
and other modern appliances and were
reclassified as S1A. All of the O5 4-8-4s,
S4 4-6-4s and M4 2-10-4s were upgraded in
the 1930s, keeping crews busy at several
shops during the Depression. The 2-10-4s
were actually changed from their original
heavy coal service design to high speed
mainline service between Lincoln, NE and
Denver. They stayed in that service during
WWII until the FT diesel locomotives entered
service in 1944.
4. In 1950, the Q decided to convert some
of their larger steam locomotives from coal
to oil fuel. This group included O5As 5614,
5620, 5626, 5627, 5629 and 5632 and S4As
4002 and 4003. The O5As were reclassified as
05Bs and the S4As were reclassified S4Bs.
All were assigned to Lines West, Lincoln to
Denver. The Q had many other locomotives
that burned oil, but none of them carried
the “B” designation. I don’t know why. As an
example, all 15 O4 2-8-2s were converted to
oil in the 1920s, but never received the “B”
designation.
I hope this gives you a little insight.
Bill Barber
Gravois Mills, MO
Hello all:
While working on improving the BRHS web
site's steam locomotives photos and roster
data I put together this chart.
It can be found on the BRHS web site at this
URL. Note that it is in the Members Only
area so you will need to log on before using
this link. https://www.burlingtonroute.org/members_only/secured/steam_roster/steam_locomotive_classifications.php
If you folks who are experts in the steam
locomotive (not me) see any errors in this
chart, please reply. Also if you know the
meaning of the different class numbersand trailing
letters, please send me that and I
will add that to this chart.
<zOfELp1o7cThUefw.png>
If you visit the BRHS photo feature and
browse the steam locomotives you will see
that the titles below the photos are
undergoing a change. They are all being
changed to the syntax seen
in the example below. Location and dates are
added were available. The location and
dates are not included for search results at
this time, but are included for Category and
Album browsing when choosing steam
locomotives. Cool... Yes?
<YBqpEVNxwcXFz9fT.png>
BTW, the comma after the engine number is
very important as it allows for the reading
of this title with a program that will
enable connecting the roster data to these
photos. In other words, please don't
edit them out. Thanks! If you visit a steam
locomotive page that has not yet be revised
to this syntax, I invite you to edit this
title change. Don't forget the comma.
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