EMD SD7

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Data Sheet Information Compiled by: JEAN-DENIS BACHAND
Revised: 10 Feb. 2014  Artwork by: Jean-Denis Bachand
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Engine Builder: EMD Engine: 567B 16 cylinder
Bore & Stroke 8.5" X 10"
RPM (Maximum / Minimum) 835 / 275
Main Generator: GM - D22 Horsepower: 1500
Gear Ratio: 62:15 Speed: 65 mph
Trucks: 6-Wheel Configuration: C-C
Traction Motor Blowers: Electrical Drive (4) Model: Delco
Weight: 360,000 lbs Traction Motors: Six GM - D47
Tractive Effort (starting) 90,800 lbs @25% Tractive Effort (continuous): 75,000 lbs @ 9.3 mph
Multiple Unit Capability: Yes Dynamic Braking: Yes
Auxilary Generator: Delco A8102 Alternator: GMD14
Air Brake: Westinghouse Model: 24RL
Compressor: Gardner-Denver Model: WBO
Quantity Built: 188 Dates: 2/1952 to 11/1953
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Exterior Dimensions SD7
Total Length 60'-08.5"
Wheel Diameter 40"
Truck Wheel Base 13'-07"
Height to Top Engine Hood 13'-10.5"
Height to Top Cab 15'-00"
Cab Width 10'-00"
Top of Walkway 8'-08.5"
Walkway Width 5'-04.5"
Engine Hood Width 7'-00"
Distance between Truck Centers 35'-00"
Distance between Truck Centers 48'-07"
Minimum Turning Radious 57 degrees
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Fuel Oil: 2400 Lubricating Oil: 200
Engine Cooling Water: 260 Sand Capacity: 50 cu. ft.
Options: Vapor-Clarkson Steam Boiler OK4625
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Reference Sources:
  • Diesel Locomtoives, Vol.2, by Bob Hayden
  • Illustrated Treasury of GM Locomotives, by James W. Kerr
  • Diesel Locomotives, The First 50 Years by Louis A. Marre
  • The Second Diesel Spotter's Guide, by Jerry A. Pinkepank
  • "Early Diesel and Electric Locomotives," Rail Heritage Publications
  • Diesel & Electric Locomotive Specificiations, 1981 by F.K. Hudson
  • Train Shed Cyclopedia, Vol. 20, 58, 60, 64, 80

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