Athearn Genesis G1021 HO Scale 4-6-6-4 Challenger w/Oil Tender Union Pacific UP 3939 DCC/Sound Meridian & Bigbee The faithful recreation of accumulated

The faithful recreation of accumulated dust and dirt is one of the key factors of realistic weathering

Long antenna for better range and reception

Phase 1 or 2 sill/chassis used where appropriate

TRX-4M K10 High Trail Edition delivers the quality and performance you expect from Traxxas

Athearn Genesis G1021 HO Scale 4-6-6-4 Challenger w/Oil Tender Union Pacific UP 3939 DCC/Sound Meridian & Bigbee The faithful recreation of accumulatedAthearn Genesis G1021 HO Scale 4 6 6 4 Challenger w Oil Tender Union Pacific UP 3939 DCC Sound 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