BLI 9917 HO Scale UP CSA-2 Early Challenger Union Pacific 3915 Builders Fantasy Scheme Paragon4 Hybrid Era_1940-1960s Introducing PROTOform's latest aerodynamic solution

Introducing PROTOform's latest aerodynamic solution for high-competition 1/10 Electric Touring Car Racing

Designed to work with stock AR60 axle housings as well as Vanquish V2 axle housings

Positional exhaust

Get yours today and get in the race

Walthers Proto 920-49903 HO Scale EMD E8A-A Diesel Pennsylvania (EP-22 Single Stripe) PRR 5764A/5799

BLI 9917 HO Scale UP CSA-2 Early Challenger Union Pacific 3915 Builders Fantasy Scheme Paragon4 Hybrid Era_1940-1960s Introducing PROTOform's latest aerodynamic solutionBLI 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