Alco RSD-15 and

MLW RSD-17

Roster

 Somebody's Large Digital Image Here
Reformatted: 19 October 2020 Squaw Creek 9842 (ex-ATSF 842) at Cincinnati, Ohio on 1 June 1978 (Ralph Back collection)
- Info from: John Komanesky
Original Owner Road Nmbr Bldr Nmbr Date
Atchison Topeka & Santa Fe 800-802 81762-81764 3-4/59
803-805 83429-83431 4/59
806-823 83465-83482 9/59
824-843 83560-83579 4/60
844-848 83054-83058 1/59
849 83533 3/60
RSD15s 826, 828 & 848 reblt as CRSD20s 3900, 3901 & 3902 by San Bernadino Shops on 6/74 and 3-4/76
Duluth Missabe & Iron Range 50-55 81756-81761 3-4/59
Pennsylvania 8611-8616 81750-81755 8/55
St. Louis-Southwestern 850 83486 3/60
851-859 83524-83532 3/60
Southern Pacific 4816-4818 83483-83485 9/59
RSD-15 Spotting features:
  • Seven-feet shorter than RSD-12
  • High hoods with notched nose; ATSF, SP & SSW had low-notched nose
  • Six-axle trucks (all powered)

MLW RSD-17

Roster

 Somebody's Large Digital Image Here
Info from: R. Craig Photo by: D.W. Hately at Toronto, Ontario
Canadian Pacific 8921 81603 5/57
Unit built as demonstrator 7007. Re-#d to CN #3899, followed by PGE #624; bought by GE in 1959
RSD-17 Spotting features:
  • Same car-body as RSD-7/15
  • High hoods without notched nose
  • Six-axle trucks (all powered)

Technical Data

RSD-15 & RSD-17

Data Sheet by: Jean-Denis Bachand

 Somebody's Large Digital Image Here

Drawing by Jacques Belanger

Specifications
RSD-15
RSD-17
Engine: Alco: 4-cycle Model 251B V16 Dominion Engineering: 4-cycle Model 251B V16
Bore & Stroke 9" X 10.5" 9" X 10.5"
RPM (Maximum / Minimum) 1025 / 400 1025 / 400
Main Generator: GE - GT586 GE - GT586
Horsepower 2400 2400
Gear Ratio: 74:18 (Speed: 65 mph) 74:18 (Speed: 65 mph)
Tri-Mount 6-Wheel: C-C configured C-C configured
Weight: 335,000 lbs 339,000 lbs
Traction Motors GE 752 (Six) GE 752 (Six)
Tractive Effort (starting) 83,750 lbs @ 25% 84,750 lbs @ 25%
Tractive Effort (continuous): 79,500 lbs @ 12 mph 79,500 lbs @ 12 mph
Multiple Unit & Dynamic Braking: Yes Yes
Auxilary Generator: GE GY27-5 GE GY27-5
Air Brake: Westinghouse 26C Westinghouse 24RL
Compressor: Westinghouse 3CDB Westinghouse 3CDC
Quantity Built: 87 (2/1956 to 6/1960) 1 (5/1957)
- - -
Total Length 66'-07" 66'-07"
Pilot to Pilot 57'-09" 57'-09"
Truck Wheel Base 12'-06" 12'-06"
Wheel Diameter 40" 40"
Height to Cab & Top Engine Hood 14'-11" 14'-11"
Cab Width 10'-01" 10'-01"
Engine Hood Width 9'-11" 9'-11"
Center Bolster 43'-06" 43'-06"
Distance between Truck Centers 49'-09" 49'-09"
Minimum Turning Radious 21 degrees 21 degrees
- - -
Fuel Oil: 3350 3350
Lubricating Oil: 350 350
Engine Cooling Water: 320 320
Sand Capacity: 48 cu. ft. 48 cu. ft.
Options:
Reference Sources:
  • Railroad Model Craftsman, June 1966
  • ATSF Design Data Book
  • Alco Design Data
  • Pennsylvania RR Mechanical Data Book
  • Extra 2299 South Newsletter

New: 20 May 2005

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