Athearn Genesis G1025 HO Scale 4-6-6-4 Challenger w/Oil Tender Union Pacific UP 3823 DC N Decals Beginning in 1958

Beginning in 1958

round loading hatches are also common

There’s also an optional 12

Arrange conveyor to fit available space on your layout

Athearn Genesis G1025 HO Scale 4-6-6-4 Challenger w/Oil Tender Union Pacific UP 3823 DC N Decals Beginning in 1958Athearn 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