Alco Pre-War Passenger Cabs

ROSTER

Somebody's Large Digital 
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Alco "Paster" photo (R. Craig collection)

Reformatted: 31 October 2020 Info from: John Komanesky and R. Craig

* * * DL100 Series Cab Units * * *
DL 100 Model Original owner Road Numbers Bldr Numbers Bldr Dates
DL 103 Chicago Rock Island & Pacific 624 69186 12/1939
DL 105 Chicago Rock Island & Pacific 622 69336 11/1940
DL 107 Atchison Topeka & Santa Fe 50 69399 5/41
Chicago & North Western 5007A 69436 8/41
Chicago Milwaukee St. Paul & Pacific 14A, 14B 69437, 69438 10/41
Chicago Rock Island & Pacific 621 69439 11/41
Chicago Rock Island & Pacific 623 69398 12/1940
Cincinnati New Orleans & Texas Pacific (Southern) 6400, 6401 69400, 69401 2/41
DL 109 Gulf Mobile & Ohio 270, 271 69334, 69335 9/40
GM&O 272 69991 2/43
New Haven 0700-0709 69726-69735 12/41-4/42
NH 0710-0719 69980-69989 7/42-1/43
NH 0720-0729 71041-71050 1-4/44
NH 0730-0739 72950-72959 10/44-1/45
NH 0740-0744 72925-72929 1-2/45
NH 0745-0759 71439-71453 2-4/45
Southern Ry 2904 69990 9/42
* * * DL100 Series Booster Units * * *
DL108 Atchison Topeka & Santa Fe 50A 69440 5/41
Cincinnati New Orleans & Texas Pacific (Southern) 6400B, 6401B 69441, 69442 2/41
DL110 Southern 2954 69443 9/42
Source of information: Extra 2200 South and "Alco: A Centennial Remembrance" by Richard T. Steinbrenner

Technical Data

Somebody's Large Digital 
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Updated: 31 March 2005 Drawing by: Jean-Denis Bachand
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DL103 Engine: Alco 4-cycle Model 538T-6L (two) DL105 to 109 engine: Alco 4-cycle Model 539T-6L (two)
Total Horsepower 2000
Bore and Stroke 12" X 13"
RPM (maximum / minimum) 740 / 315
Main Generator in DL103: GE GT542 (two) Main Generator in DL105 to 109: GE GT557 (two)
Trucks: 6-Wheel (Commonwealth) Configuration: A-1-A
Gear Ratio in DL 103: 71:21 (max speed ?) Gear Ratio in DL 105 & DL107: 61:22 (max speed ?)
Weight: 230,000 lbs (approx.) Traction Motors: GE 730 (four)
Tractive Effort (starting) 53,000 lbs Tractive Effort (continuous): 32,000 Lbs. @ 11mph
Multiple Unit Capability: Yes Dynamic Braking: No
Air Brake: Westinghouse Model: 6L
Boiler Type in DL103 & DL105: Steam (Vapor) PSI: ?? Boiler Type in DL107 & DL109: Steam (Vapor) PSI: 275 (1600 capacity
Quantity Built: 1 DL103 (12/1939) and 1 DL105 (11/1941) Quantity Built: 8 DL107s (12/1940 to 11/1941) and 22 DL109
Drawing by: Jean-Denis Bachand
Total Length of DL103: 78'-11" Total Length of DL105 to DL109: 74'-06"
DL103 & DL105 Pilot to Pilot 75'-06" (and 71'-O1") DL107 & DL109 Pilot to Pilot 71'-06" ( and 71'-01)"
Wheel Diameter 40"
Truck Wheel Base 15'-04"
Height to Top Engine Hood 14'-04"
Height to Top Cab Hood 13'-06"
Distance between Truck Centers DL 103: 62'-07" Distance between Truck Centers DL 105 to DL109: 58'-04"
DL103 Center Bolster: 47'-03" DL105 & DL107 Center Bolster: 43'-00"
Minimum Turning Radius 30 degrees
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Fuel Oil: 1200 Gallons Lubricating Oil: 92 Gallons
Engine Cooling Water: 208 Gallons Sand Capacity: 24 Cubic Feet
Equipment & Options: ??
Drawing by: Jean-Denis Bachand
Reference Sources:
  • ATSF Mechanical Data Book
  • Mainline Modeler - March 1984
  • Railway Mech. Eng. March 1941
  • The Diesel Builders, Volume 2 by: John Kirkland
  • TrainShed Cyclopedia #58

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