DS/SS split 1945 MILW help needed


laramielarry <ostresh@...>
 

Hi Folks

Here are the DS/SS/Steel splits, 1945, and 1950, for box and auto
cars in interchange service on the Milwaukee, including nearly 900 SS
cars with CTSE reporting marks.

January 1945:
MILW_____%____Number
DS_____14.3%____4,606
SS_____61.5%____19,759
Steel_____21.6%____6,945
Known_____97.5%____31,310
Unknown_____2.5%____793
Total_____100.0%____32,103

July 1950:
MILW_____%____Number
DS_____0.2%____49
SS_____54.4%____17,406
Steel_____45.3%____14,493
Known_____99.9%____31,948
Unknown_____0.1%____23
Total_____100.0%____31,971

There are a large number of cars in 1945 whose sheathing type is
Unknown at present, but regardless of their classification, it is
apparent that the MILW underwent a huge transition from 1945 to 1950,
slashing 99% of its DS fleet, doubling its steel fleet and trimming
over 2,300 of its SS cars. Most or all of the added steel cars were
rib-sided (7,307 minimum).

Here is a listing of most of the unknowns, all of which are described
in the ORER as "Steel Underframe".

Note that all of the dimensions in the following series are
identical; all other MILW cars with these dimensions are double
sheathed.
Road, AAR, Kind, Series, IL, IH, Door, Capy, Qty 1945, Qty 1950
MILW, XM, Box, 81482-81998, 41'0", 8'8", 5'6", 80000, 32, NA
MILW, XM, Box, 82736-83480, 41'0", 8'8", 5'6", 80000, 56, NA
MILW, XM, Box, 84000-87480, 41'0", 8'8", 5'6", 80000, 386, NA
MILW, XM, Box, 206500-206500, 41'0", 8'8", 5'6", 80000, 1, NA
MILW, XM, Box, 208100-208178, 41'0", 8'8", 5'6", 80000, 52, NA
MILW, XM, Box, 208200-208862, 41'0", 8'8", 5'6", 80000, 200, 18
MILW, XM, Box, 208900-209260, 41'0", 8'8", 5'6", 80000, 0, 4

These are also likely to be DS:
Road, AAR, Kind, Series, IL, IH, Door, Capy, Qty 1945, Qty 1950
MILW, XAB, Auto, 206200-206499, 40'9", 8'8", 10'0", 80000, 14, NA
MILW, XM, Box, 206200-206499, 40'9", 8'8", 9'0", 80000, 6, NA
MILW, XAB, Auto, 206200-206499, 40'6", 8'8", 10'0", 80000, 31, NA
MILW, XM, Box, 206200-206499, 40'6", 8'8", 9'0", 80000, 9, NA

If anyone knows whether these Unknowns are DS, SS, Steel, or
rebuilds, I would appreciate that information. Build or rebuild
dates would also be useful.

Thanks and best wishes,
Larry Ostresh
Laramie, Wyoming

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