Athearn Genesis G1024 HO Scale 4-6-6-4 Challenger w/Coal Tender Union Pacific UP 3907 DC Roadname_Conrail - CR Clear plastic windows

Clear plastic windows

They are also designed to be sound-friendly

Small pumpkin for increased clearance and a more realistic

created a “humpback” from the cab back

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

Athearn Genesis G1024 HO Scale 4-6-6-4 Challenger w/Coal Tender Union Pacific UP 3907 DC Roadname_Conrail - CR Clear plastic windowsAthearn 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