Athearn Genesis G1021 HO Scale 4-6-6-4 Challenger w/Oil Tender Union Pacific UP 3939 DCC/Sound E-Z Track 6 Colors - 20ml Tubes

6 Colors - 20ml Tubes

Walthers Mainline 910-9958 HO Scale EMD F7A-B Diesel Set SOO Line 214A/220C

and waterproof electronics - you needn't worry about puddles or debris standing in your way

you can openly observe the operation of the entire cone CVT mechanism without dirtying your hands with engine oil

Easy way to model "tip-up" concrete panel construction used for all types of trackside warehousing

Athearn Genesis G1021 HO Scale 4-6-6-4 Challenger w/Oil Tender Union Pacific UP 3939 DCC/Sound E-Z Track 6 Colors - 20ml TubesAthearn 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