On October 18, 2005, at the George Bush Presidential Library and Museum in College Station, Texas, the Union Pacific Railroad unveiled locomotive 4141. It was only the sixth time in UP history that a diesel had been decorated in colors other than the road's signature Armour Yellow paint.
Based on the paint scheme of Air Force One, the brand-new EMD SD70ACe engine honored the 41st president and his library, on the occasion of a new exhibit celebrating America's railroads, Tracks of the Iron Horse. Among the artifacts on display was the original golden spike that had marked the completion of the first transcontinental railroad in 1869.
In the ensuing ceremonies, the former president himself took a turn at the throttle, and 4141 later pulled freight across the UP system. When rail traffic declined in the 2008 financial crisis, 4141 went into storage as part of the UP's Heritage Fleet.
After George Herbert Walker Bush passed away on November 30, 2018, UP 4141 came out of storage to bring him back to College Station on December 6, assisted by SD70ACe No. 9096. Baggage car Council Bluffs carried his flag-draped casket, with the doors open to allow the thousands at trackside to pay their respects. To allow others to honor the former president, vice-president, congressman, ambassador, CIA director and naval aviator, engine 4141 later went on a system-wide Union Pacific tour.
Electro-Motive Diesel's SD70ACe, along with its General Electric rival, the ES44AC, inaugurated the fourth generation of diesel power. By the turn of the 21st century, the horsepower race was over and the third generation of freight diesels had found its sweet spot: a six-axle, computer-assisted, 4000-4400 horsepower locomotive with a wide, comfortable cab. Railroads viewed this as the perfect building block for multi-engine lashups to power virtually any size train. Development of the next generation of power would be born not out of railroad needs, but due to government regulations.
The SD70ACe also offers, in EMD's words, "outstanding improvements in maintainability." All electrical wires are on the right side of the locomotive and all piping is on the left, with most pipes and wires routed under the frame so they can be serviced by a man standing outside the engine - rather than crawling around at the bottom of the engine room.
Upgrade your railroad to 21st century power with our new RailKing One-Gauge SD70ACe, the first One-Gauge model of this fourth-generation pioneer. Our accurate, full 1:32 scale model is loaded with added-on details, including separate grab irons and windshield wipers, hand-painted crew figures, see-through metal grilles and moveable roof fans.
Under the hood are powerful twin motors and our Proto-Sound 3.0 sound and control system, featuring sounds recorded from an actual Union Pacific SD70ACe; conventional and DCS control as well as full 28-function DCC operation; variable intensity diesel exhaust smoke; and LED lighting effects that include directionally controlled headlights, cab illumination, and flashing ditch lights. And in DCS operation, you can easily double- or even triple-head an SD70ACe with any other M.T.H. steam or diesel locomotive. If you're looking for realism and a lot of fun in a modern locomotive, it doesn't get any better than this!