Athearn Genesis G1027 HO Scale 4-6-6-4 Challenger w/Oil Tender Union Pacific UP 3939 DC Roadname_C&EI positioned between the SIDEWINDER 4

positioned between the SIDEWINDER 4 as the entry-level upgrade and the MAMBA X as the extreme performance option

This Billboard includes pre-installed LED lighting made for use with the Just Plug® Lighting System

In addition to new cars

Proto MAX(TM) metal knuckle couplers

Athearn Genesis G1027 HO Scale 4-6-6-4 Challenger w/Oil Tender Union Pacific UP 3939 DC Roadname_C&EI positioned between the SIDEWINDER 4Athearn Genesis G1027 HO Scale 4 6 6 4 Challenger w Oil Tender Union Pacific UP 3939 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