Alco RSC-1 and RSD-1

Production Roster

 Somebody's Large Digital Image Here
Revised: 29 June 2025
Photo by: Duane Hall (Marty Bernard collection)
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 Info Supplied by : John Komanesky
* * * ALCO RSC-1 * * *
Original owner Road Numbers Bldr Numbers Bldr Dates
Sao Paulo Ry(Brazil) 500-503 75006-75009 9/1946
* * * ALCO RSD-1 * * *
U.S. Army 8013-8033 70634-70654 11-12/1942
8034-8056 70655-70677 1-2/1943
8600-8649 72073-72122 10/1944-1/1945
8650-8679 72143-72172 1-2/1945
8680-8699 72123-72142 2-3/1945
National de Mexico 5700-5705 74671-74676 1, 4, 5/1946

Source of information:
  • Extra 2200 South
  • Robert Lehmuth Builder Records

Original upload: 5 November 2004

Technical Data

Somebody's Large Digital Image Here Data Sheet and drawing by: JEAN-DENIS BACHAND
New: 16 March 2005 RSC-1 Drawing by: Jean-Denis Bachand
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Engine Builder: Alco V12 4-cycle Model 539T-6L
Bore & Stroke: 12.5" X 13"
RPM (Maximum / Minimum) 740 / 315
Main Generator: GE - GT553C Horsepower: 1000
Gear Ratio: 74:18 Speed: 60 mph
Trucks: 6-Wheel Configuration: A-1-A (RSC1) / C-C (RSD1)
Weight: 204,000 lbs Traction Motors: GE 731 & 731D (four)
Tractive Effort (starting) 51,000 lbs @ 25% Tractive Effort (continuous): 34,000 lbs @ 8 mph
Multiple Unit Capability: Yes Dynamic Braking: No (Optional on RSD-1)
Auxilary Generator: GE GMG144 Alternator: not applicable
Air Brake: Westinghouse Model: 14EL
Compressor: Westinghouse Model: 3CD
Quantity Built: 4 (RSC-1) and RSD-1 149 (RSD1)
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Exterior Dimensions RSC-1 RSD-1
Total Length 55"-05" 54'-11"
Pilot to Pilot 51'-00" 50'-00"
Wheel Diameter 40" 0"
Truck Wheel Base 10'-06" 11'-03"
Height to Top Engine Hood 12'-02" 12'-02"
Height to Top Cab Hood 14'-04" 14'-04"
Cab Width 9'-11" 9'-11"
Engine Hood Width 5'-05" 5'-05"
Center Bolster 33'-00" 32'-05"
Distance between Truck Centers 43'-06" 36'-06"
Minimum Turning Radious 21 degrees 23 degrees
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Fuel Oil 800 800
Lubricating Oil: 80 80
Engine Cooling Water 240 240
Sand Capacity: 28 cu. ft. 27 cu. ft.
Options:
  • Dynamic Braking
  • Boiler: VAPOR-CLARKSON OK4516
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Somebody's Large Digital Image Here RSD-1 Drawing by: Jean-Denis Bachand
Reference Sources:
  • Alco Reference #1 by Bob Litjestraund
  • Extra 2200 South, Issues 58 & 59
  • The Diesel Builders, Volume 2, by John F. Kirkland
  • A Centennial Remembrance by Richard T. Steinbrenner

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