Alco "Black Marias"

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Data Sheet Information Compiled by: JEAN-DENIS BACHAND
New: 5 March 2005 Drawing by: Jean-Denis Bachand
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Engine Builder: American Locomotive Co. Engine: V12 4-cycle Model 241
Main Generator: GT564A (by GE) Horsepower: 1500
Gear Ratio: Freight - 71:21, 64:19, 61:22; passenger - 58:25 Speed: 80 mph (freight); 125 mph (passenger)
Trucks: 4-Wheel (Unknown) Configuration: B-B
Weight: 230,000 lbs (approx.) Traction Motors: GE 726 (four)
Traction Motor Blowers: General Electric Type: GE Belt Driven (Two)
Tractive Effort (starting) 57,500 lbs Tractive Effort (continuous): Npt Available
Multiple Unit Capability: Yes Dynamic Braking: Yes
Auxilary Generator: GE GY20A Alternator: GE GTAPAI 6
Air Brake: Westinghouse Model: 24RL
Compressor: Westinghouse Model: 2CD
Boiler Type: None PSI: --
Quantity Built: 2 Cab units and 1 B-unit Dates: 9/1945 (cabs)
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Exterior Dimensions Cab Unit / Booster Unit
Total Length 51"-06" / 50'-02"
Pilot to Pilot 50'-06" / ?
Wheel Diameter 40" / 40"
Truck Wheel Base 9'-04" / 9'-04"
Height to Top Engine Hood 14'-02.5" / ?
Height to Top Cab Hood 14'-00" / Not Applicable
Cab Width 10'-00" / Not Appliable
Walkway Width None / None
Engine Hood Width 10'-00" / ?
Center Bolster 27'-02" / 27'-02"
Center Front Truck to Front Pilot 12'-10" / 11'-06"
Center Rear Tucrk to Rear Pilot 11'-06" / 11'-06"
Distance between Truck Centers 36'-06" / ?
Minimum Turning Radious 21 degrees / degrees
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Fuel Oil: 800 Lubricating Oil: 167
Engine Cooling Water: 200 Sand Capacity: 22 cu. ft.
Equipment & Options:
  • Manual Transition
  • Turbo Charger 7RD-2 (GE)
  • Automatic Train Control
  • Thru Steam Trainline
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Somebody's Large Digital Image Here
Drawing by: Jean-Denis Bachand
Reference Sources:
  • A Centennial Remebrance by: Richard T. Steinbrenner
  • The Diesel Builders, volume 2 by: John Kirkland
  • Extra 2200 South Magazine, Issue 34, May-June, 1972

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