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Open 24/7 online
Showroom open 930am to 430pm
68-72 Old Hume Hwy Braemar NSW
(Closed Sunday and Public Holidays)
Call us on 0248712966

ATHEARN - ATHG01943 - Spirit of Union Pacific SD70Ace Diesel DCC & Sound

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ATHG01943 - Spirit of Union Pacific SD70Ace Diesel DCC & Sound


Union Pacific’s Locomotive No. 1943, The Spirit, is the 16th commemorative locomotive introduced in the 155-year-old company’s history. The Spirit honours the United States’ armed forces and the men and women filling their ranks. Created in collaboration with Union Pacific veterans, the locomotive illustrates the railroad’s connection to the thousands of veterans who helped build America through the centuries.


Every detail in The Spirit’s trade dress incorporates a piece of each U.S. armed forces branch.

The Spirit’s front is symbolic of Air Force Silver, and the blue stripe reflects the former Strategic Air Command’s “nose sash.” The lettering inside the sash is the original hand-drawn font used on the B-17. It is followed by the Coast Guard’s “Racing Stripe” and the Navy’s Battleship Grey, which frames Union Pacific’s traditional American flag. The military camouflage a nod to the Army and Marines.

As the train passes by, the final message on the tail is dedicated to U.S. prisoners of war and those missing in action, featuring the POW/MIA symbol and its motto, “You Are Not Forgotten.”


New for the SD70ACe and SD70M-2, LED lighting

Correctly sized operating ditch lights


Front and rear trainline air hose with silver tips

Multiple unit (MU) hoses with silver tips

Coupler cut bars

Train line air hoses

Flat or tapered front and rear antic limbers

Safety tread on the walkways

Nose or cab mounted headlight

Standard or isolated cab

Windshield wipers

Tinted side windows


Detailed and painted cab interior with control stand, display screens, detailed crew seats and optional grade crossing camera

Air chime K5LLA horn with square or "tube" style mounting bracket

Large antenna dome

Small GPS antenna dome

Inverter box with original X-panels, X-panels with retrofitted louvers, factory louvers, late EMD large intake or retrofit large intake

See-through radiator fans

Etched dynamic brake grille and screen with appropriate grid detail underneath

Dynamic brake louver variations per prototype

Chicago Blower brand air blower visible behind the see-through grilles at the rear of the locomotive

Early or late hand brake housing and wheel

Early or Late Sander Brackets

Factory installed wire grab irons

Jacking pads per prototype

Plumbing alongside the frame appropriate to the specific railroad and purchase order

Fuel tanks with single or dual fuel fillers

HTCR or HTSC trucks per prototype

Non-sound QuickPlug™ equipped with NEM 21-pin DCC plug

McHenry scale knuckle spring couplers

Minimum radius: 18"

Recommended radius: 22"


Onboard DCC decoder with SoundTraxx Tsunami2 sound

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

Slow speed control

Program a multiple unit (MU) lashup with lead unit only horn, bell, and lights

Many functions can be altered via Configuration Value (CV) changes

CV chart included in the box


In order to meet stricter diesel locomotive emissions standards imposed by EPA Tier II regulations, EMD modified the SD70MAC to create the SD70ACe and SD70M-2. Each model is powered by a 16-cylinder, 4300-horsepower diesel engine. On the SD70M-2, the prime mover drives an alternator and produces AC current that is rectified to DC current, which powers the traction motors. On the SD70ACe, the DC current is then "chopped" back into AC to power the traction motors.


Much of the external design is based on the SD90 series locomotives. Similar features include the full height nose door and rectangular windshields, the large flared radiators with two fans, and the positioning of the dynamic brake equipment at the rear of the long hood. In addition, the inverters were moved from inside the long hood to a box on the walkway behind the fireman’s side of the cab.

ATHG01943 - Spirit of Union Pacific SD70Ace Diesel DCC & Sound

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