| EMD SD40 and SD40A | 
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| Data Sheet Information Compiled by:   JEAN-DENIS BACHAND | 
| New:  1 September 2006 | Artwork by:  Jean-Denis Bachand | 
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| Engine Builder: EMD | Engine:  645E3 16 cylinder | 
| Bore & Stroke | 8.5" X 10" | 
| RPM   (Maximum / Minimum) | 900 / 315 | 
| Main Generator: GM - AR10 | Horsepower:  3000 | 
| Gear Ratio: 62:15 | Speed: 65 mph | 
| Trucks: HT-C 6-Wheel | Configuration: C-C | 
| Traction Motor Blowers: Electrical Drive (2) | Model: GM | 
| Weight: 368,000 lbs | Traction Motors: Six GM - D77 | 
| Tractive Effort (starting) 92,000 lbs @25% | Tractive Effort (continuous): 82,100 lbs @ 11 mph | 
| Multiple Unit Capability: Yes | Dynamic Braking:  Yes | 
| Auxilary Generator:  Delco A8102 | Alternator:  Delco 14 | 
| Air Brake:  Westinghouse | Model:  26L | 
| Compressor:  Gardner-Denver | Model:  WBO | 
| Quantity Built:  1257 (plus 18 SD40As) | Dates: 1/66 to 7/72 (and 8/69 to 1/70 for SD40A) | 
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| Exterior Dimensions | SD40 | 
| Total Length | 65'-08"  (and 70'-08") | 
| Wheel Diameter | 40" | 
| Truck Wheel Base | 13'-07" | 
| Height to Top Engine Hood | 14'-08" | 
| Height to Top Cab | 15'-07.5" | 
| Cab Width | 10'-03" | 
| Top of Walkway | 8'-09.5" | 
| Walkway Width | 3'-08.5" | 
| Engine Hood Width | 10'-00" | 
| Center Bolster | 43'-06"  (and 45'-00") | 
| Center Front Truck to Front Pilot | 3'-10" | 
| Center Rear Truck to Rear Pilot | 3'-10" | 
| Distance between Truck Centers | 53'-07" (and 58'-07") | 
| Minimum Turning Radious | 57 degrees | 
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| Fuel Oil:  4000 | Lubricating Oil:  395 | 
| Engine Cooling Water: 254 | Sand Capacity:  56 cu. ft. | 
| Options: - | 
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| Artwork by:   JEAN-DENIS BACHAND | 
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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 |