PROTOTYPE SPECIFIC INFORMATION

The SD38 is a 6-axle diesel-electric locomotive built by General Motors Electro-Motive Division between May 1967 and October 1971. It had an EMD 645 16-cylinder engine generating 2,000 horsepower. The EMD SD38AC built by General Motors Electro-Motive Division between June and October 1971. It was basically an SD38 with an AR10 alternating current alternator instead of the SD38’s normal direct current generator. It also produces 2,000 horsepower from a 16-cylinder EMD 645E roots blown prime mover. It came equipped with or without dynamic brakes. The SD38 and SD38AC have the same frame as the SD39, SD40 and SD45.

In 1966, EMD updated its locomotive catalog with entirely new models, all powered by the new 645 diesel engine. The SD39 had 2,300 hp from a turbocharged V12. The SD39 had the smallest prime mover of the SD locomotives in the EMD catalog. 54 were built for American railroads.

SD38/SD39 LOCOMOTIVE FEATURES:

• Fine scale handrails
• Separately-applied air tanks
• Brake wheel or ratchet brake nose per prototype
• Individually applied wire formed grab irons
• See-through cab windows
• Detailed fuel tank per prototype
• See-through dynamic brake and radiator fans
• Separately-applied detail parts
• DCC Ready 21-pin NEM plug
• Non-sound version features 21-pin NEM DCC plug
• LED Illuminated front and rear headlights, ditch lights, and beacons (where applicable to the prototype)
• All-wheel drive with precision gears for smooth and quiet operation
• All-wheel electrical pickup provides reliable current flow
• 5-pole motor with precision-machined flywheels and multi-link drive train for trouble free operation
• Heavy die-cast frame for greater traction and more pulling power
• McHenry scale knuckle spring couplers
• Wheels with RP25 contours operate on all popular brands of track
• Fully-assembled and ready-to-run out of the box
• Painted and printed for realistic decoration
• Genesis motor retrofit kit ATHG63839 compatible
• Highly-detailed, injection-molded body
• Minimum radius: 18” — Recommended radius: 22”

SOUND-EQUIPPED MODELS ALSO FEATURE

• Onboard Econami Sound by SoundTraxx
• Sound units operate in both DC and DCC
• Full DCC functions available when operated in DCC mode
• Engine, horn, and bell sounds work in DC
• All functions NMRA compatible in DCC mode
• Excellent Slow speed control
• Effect lighting (if applicable) using F5 and/or F6
• Program a multiple unit (MU) lashup with lead unit only horn, bell, and lights
• Many functions can be altered via Configuration Value (CV) changes

Southern Pacific

As Southern Pacific’s SD39s approached and exceeded ten years of age, additional information was stenciled on their cabs, such as shop assignments. Originally assigned to lines in Texas, they commonly began to migrate west to the grades of Tehachapi, where their low-speed tractive effort was an asset.

SP FEATURES:

• P3 Horn
• SP/UP style plow on front and rear pilots
• Flexicoil high-brake trucks
• FARR radiator grills

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