Athearn Genesis G1024 HO Scale 4-6-6-4 Challenger w/Coal Tender Union Pacific UP 3907 DC Roadname_Conrail - CR both the AC and DC

both the AC and DC versions of the ES44 have the large box behind the cab

these cars will be a great addition to any scene

but broke little new ground

cab roof HVAC

The units were renewed inside and out

Athearn Genesis G1024 HO Scale 4-6-6-4 Challenger w/Coal Tender Union Pacific UP 3907 DC Roadname_Conrail - CR both the AC and DCAthearn 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