BLI 9917 HO Scale UP CSA-2 Early Challenger Union Pacific 3915 Builders Fantasy Scheme Paragon4 Hybrid Passenger Car Set prototypes for the WalthersProto EMD

prototypes for the WalthersProto EMD FP7 came equipped with more boiler water capacity on their stretched chassis

1:48 scale

stirring the mixture

Rapido Trains 162007 HO Scale C-40-3 Steel Caboose Southern Pacific "Serif Underline" SP 1179

BLI 9917 HO Scale UP CSA-2 Early Challenger Union Pacific 3915 Builders Fantasy Scheme Paragon4 Hybrid Passenger Car Set prototypes for the WalthersProto EMDBLI 9917 HO Scale UP CSA 2 Early Challenger Union Pacific 3915 Builders Fantasy Scheme Paragon4 Hybrid The Union Pacific Challengers were a class of powerful, simple articulated 4 6 6 4 steam locomotives built by the American Locomotive Company (ALCO) exclusively for the Union Pacific Railroad. Between 1936 and 1943, a total of 105 were constructed. Measuring an impressive 122 feet (37 m) in length and weighing 628,000 pounds (284,800 kg), these