BLI 9901 HO Scale UP CSA-2 Early Challenger Union Pacific 3817 As-Delivered Paragon4 Hybrid Roadname_Alton & Southern ALS The formerly used metal gearbox

The formerly used metal gearbox and parts are changed to the assembled plastic gearbox (featuring built-in motor with cables) and plastic parts for safe and ease of assembly

Long barrel 90mm elevating Gun

Multiple protections: battery low-voltage cutoff protection

Pull this die-cast metal workhorse into place and take complete command of M

BLI 9901 HO Scale UP CSA-2 Early Challenger Union Pacific 3817 As-Delivered Paragon4 Hybrid Roadname_Alton & Southern ALS The formerly used metal gearboxBLI 9901 HO Scale UP CSA 2 Early Challenger Union Pacific 3817 As Delivered 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 locomotives were