Athearn Genesis G1031 HO Scale 4-6-6-4 Challenger w/Oil Tender Union Pacific UP 3823 DCC/Sound Caboose Front and rear hold-down retainers

Front and rear hold-down retainers

Authentic steam drifting sounds

Includes instructions

Accurail 3451 HO Scale 40' PS-1  Boxcar Kit Central of New Jersey CNJ

Revised Suspension geometry: Corrected geometry to work with AR45 Straight Axles

Athearn Genesis G1031 HO Scale 4-6-6-4 Challenger w/Oil Tender Union Pacific UP 3823 DCC/Sound Caboose Front and rear hold-down retainersAthearn Genesis G1031 HO Scale 4 6 6 4 Challenger w Oil Tender Union Pacific UP 3823 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