ATSF logo ATSF Diesel Roster
EMC Box Cab "One-Spot Twins"
master power roster with specifications and references
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specifications:
power:  1,800 hp101
weight:  516,800 lbs63
tractive effort:
129,200 lbs starting63
37,600 lbs continuous63
  engine:  two Winton 201A at 900 hp each61,63,101
fuel capacity:  1,600 gals101
generator:  GT53561
dynamic brakes:  none
  trucks: 
traction motors:  four GE 716-C261,63
gear ratio:  55:2261
 
roster:
1 class
road
number
model builder
info
history and configurations disposition
ATSF
 1A:1 
"Amos"

ATSF
1L

ATSF
83A
image not available
ATSF box cab 1A:1

  image not available
ATSF box cab 1L

  image not available
ATSF E8Bm 83A
SRW
box cab

E8Bm
 
builder:  EMC61,101
date:  ???35101
serial no.:  53561
frame no.: 
order no.: 
numbered:  ATSF box cab  1A:1 
delivered:  30Aug3561 / Aug3563,101
assignment: 
paint: 
fire damaged:  near Gallup NM 20Nov35101
repaired / rebuilt:  EMD101 Mar36101
rebuilt:  ATSF Topeka KS101 ???3763"> / Jan38101:
carbody:  converted to B-unit63
trucks:
front:  1-B63
rear:  B
repainted:  SSC May3761
renumbered:  ATSF  1L 61 ???3861
rebuilt:  EMD61,101 E8Bm Aug5361
renumbered:  ATSF  83A  Aug53
repaint:  SRW Aug53
retired:   date 
transferred:  to EMD ???70 for GP38
series
ATSF
 1B 
"Andy"

ATSF
10L

ATSF
1A:2

ATSF
2611

ATSF
84A
image not available
ATSF box cab 1B

  image not available
ATSF box cab 10L

  image not available
ATSF box cab 1A:2

  image not available
ATSF box cab 2611

  image not available
ATSF E8Bm 2611
SRW
  image not available
ATSF E8Bm 84A
SRW
box cab

E8Bm
 
builder:  EMC61,101
date:  ???35101
serial no.:  53661
frame no.: 
order no.: 
numbered:  ATSF box cab  1B 
delivered:  30Aug3561 / Aug35101
assignment: 
paint:  GSCB101
rebuilt:  ATSF Topeka KS101 Jan38101
renumbered:  ATSF  10L 61,101 Jan38 / ???3861
rebuilt:  ATSF Topeka KS101 Jul41101:
carbody:  converted to B-unit63
renumbered:  ATSF  1A:2  /  1A 61 May4161 / Jul41101
rebuilt:  EMD E8Bm Aug48
renumbered:  ATSF road switcher  2611 61,101 Aug4861,101
repainted:  BSZ101
rebuilt:  EMD E8Bm61,101 ???52101
renumbered:  ATSF  84A  ???52101 / Sep5361
repaint:  SRW Aug53
retired:   date 
transferred:  to EMD ???70 for GP38
series
EMC
demo
512


ATSF
 1C 
image not available
ATSF box cab 1C

box cab

E8Bm
 
builder:  EMC
date: 
serial no.: 
frame no.: 
order no.: 
EMC demonstrator 51261
loaned / leased:  to ATSF Jun3661
renumbered: ATSF box cab  1C 61 Jun36-Jan38
returned:  to EMC Jan3861
 
references:
  61 John B. McCall, Early Diesel Daze, 1935-1953, 1980.
  63 E. D. Worley, Iron Horses of the Santa Fe Trail, Southwest Railroad Historical Society, 1965.
  68 Larry E. Brasher, Santa Fe Diesel Locomotive Development, Railroad Artifact Preservation Society, 2015.
101 Cinthia Priest, The Santa Fe Diesel, Volume One:&nbps; Dieselization-1960, Paired Rail Railroad Publications, Ltd., 1997.
 
abbreviations and paint designations:
abbreviations:
ATSF -- Atchison, Topeka & Santa Fe Railway
EMC -- Electromotive Corporation
EMD -- Electromotive Division, General Motors Corporation
paint designations:
 BSZ  -- Black with Silver Zebra stripes
 GSCB  -- coach Green (golden olive), Scarlet, Cobalt, and Sarasota Blue
 SRW  -- Silver with Red Warbonnet
 SSC  -- Silver, Scarlet, and Cobalt blue
 
notes:
  This roster is formatted for 8½x11 portrait printing; margin adjustment might be necessary.
  Last upgraded 16 September 2020.

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