Three former SP units in two different schemes gather near T&P station while waiting for the Texas Eagle to cross en route to Fort Worth ITC. Note the lower than usual grey stripe on 3997. UP 3997 with more Harbor Mist Gray than usual from the roof to the red stripe.

Three former SP units in two different schemes gather near T&P station while waiting for the Texas Eagle to cross en route to Fort Worth ITC. Note the lower than usual grey stripe on 3997. UP 3997 with more Harbor Mist Gray than usual from the roof to the red stripe.

What was needed was a locomotive to take over at that point that could speed the freights eastward across the Wyoming Division. Building on their experience with the original CSA 4-6-6-4 Challengers UP and Alco's designers developed a newer and better Challenger type locomotive.

The N 4-6-6-4 with DCC & Sound, UP #3997 by Athearn is from our collection of the best Locomotives in model trains. Shop a variety of railroad eras, roadnames, and reporting marks at www.horizonhobby.com!

Illuminated directional back-up light in the tender; Correctly operating eccentric cranks; Adjustable top cab vent and cab windows; Pivoting front and rear engines for negotiating 18" radius curves; Current pick-up on all driver and wheels; Boiler backhead with full details and printed gauges

UP 3997 Union Pacific (ex-SP) SD70M #3997 leads the Milpitas to Roseville manifest (MMIRV-19) through Davis.

2024年3月23日 · A photograph print showing the Union Pacific (UP) 3997, 4-6-6-4, and 4013, 4-8-8-4,on extra West above Red Buttes, WY, 92 cars, 70 mph

2025年3月18日 · I'm very excited to bring you this item. <br> <p>Athearn Locomotives<br> Athearn N ALCO 4-6-6-4 Challenger Union Pacific UP #3997 DCC/SND LED ATH25745. …

UP SD70M 3997, HLCX SD40-2 6200, & CSXT 8083 have just pulled their train into the receiving yard & have detached their locomotives to be serviced at Boyles Service Center in Tarrant City, Al. Photo Date:

Building on their experience with the original CSA 4-6-6-4 Challengers UP and Alco's designers developed a newer and better Challenger type locomotive. The result was a group of 65 4-6-6-4 Challenger built in three separate groups during World War II.