Athearn Genesis G1029 HO Scale 4-6-6-4 Challenger w/Oil Tender Union Pacific UP 3820 DC GC improving its road hugging performance

improving its road hugging performance

Brake wheel or ratchet brake nose per prototype

Some turnouts have very short frogs or plastic frogs and this can be ignored

275mm Servo Lead

Athearn Genesis G1029 HO Scale 4-6-6-4 Challenger w/Oil Tender Union Pacific UP 3820 DC GC improving its road hugging performanceAthearn Genesis G1029 HO Scale 4 6 6 4 Challenger w Oil Tender Union Pacific UP 3820 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