BLI 4984 4-6-6-4 Challenger Steam Locomotive Oil Tender Union Pacific Two Tone Gray UP #3977 UniTrack - Viaduct 100% Fully Assembled and Ready-To-Race®

100% Fully Assembled and Ready-To-Race®

Clear window inserts & separately applied side railings (caboose only)

941 in w x 10

This Jeep® Comanche body is constructed out of a single piece of high quality Lexan

railing and dust collectors

BLI 4984 4-6-6-4 Challenger Steam Locomotive Oil Tender Union Pacific Two Tone Gray UP #3977 UniTrack - Viaduct 100% Fully Assembled and Ready-To-Race®BLI 4984 4 6 6 4 Challenger Steam Locomotive Oil Tender Union Pacific Two Tone Gray UP #3977 The Union Pacific Challengers were a type of simple articulated 4 6 6 4 steam locomotive built by American Locomotive Company for the Union Pacific. 105 of these locomotives were built between 1936 and 1943. The Challengers were about 122 ft (37 m) long and weighed 284,800 kg. Primarily in freight service, they operated over most of the Union Pacific system. A