Athearn Genesis G1024 HO Scale 4-6-6-4 Challenger w/Coal Tender Union Pacific UP 3907 DC Roadname_Florida East Coast High grade composite front suspension

High grade composite front suspension and pivot plastic parts

Input Voltage: 5-20V

Kit - 2-1/2 x 3-1/4 x 2-5/16" 6

39 in (137mm)

Performance-optimized geometry

Athearn Genesis G1024 HO Scale 4-6-6-4 Challenger w/Coal Tender Union Pacific UP 3907 DC Roadname_Florida East Coast High grade composite front suspensionAthearn Genesis G1024 HO Scale 4 6 6 4 Challenger w Coal Tender Union Pacific UP 3907 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