Athearn Genesis G1025 HO Scale 4-6-6-4 Challenger w/Oil Tender Union Pacific UP 3823 DC N Decals LED constant headlight

LED constant headlight

SSD RC 00006 Silver D Hole 1

Ultra-simple Patent-Pending gimbal mode-change switch

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 LED constant headlightAthearn 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