Athearn Genesis G1025 HO Scale 4-6-6-4 Challenger w/Oil Tender Union Pacific UP 3823 DC N Decals There’s also an optional 12

There’s also an optional 12

Molded Thermoplastic Polyurethane (TPU) bumpers defend it against damage from drops and bumps

Arrange conveyor to fit available space on your layout

Optional Pro-Spec Springs are available separately

Athearn Genesis G1025 HO Scale 4-6-6-4 Challenger w/Oil Tender Union Pacific UP 3823 DC N Decals There’s also an optional 12Athearn Genesis G1025 HO Scale 4 6 6 4 Challenger w Oil Tender Union Pacific UP 3823 DC ALCO constructed the first 4 6 6 4 locomotives in the world, numbered 3900 to 3914, for the Union Pacific Railroad in 1936. These huge engines were named the Challenger Simple Articulated, or CSA 1, class. The railroad received 25 near copies, classified as CSA 2, the following year. Unlike compound Mallet engines that crawled along with drag freights, the