Notes for operating this locomotive: The locomotive can be used on curved track with a radius of 437.5 mm / 17-1/4" (Radius 2) or more, however we recommend larger radii. Due to the overhang of the long boiler, signals, catenary masts, bridge railings, tunnel portals, etc. must be installed for sufficient clearance on curves. The track must be well mounted due to the heavy weight of the locomotive. The locomotive can only be run through a turntable or transfer table. Products bearing "Union Pacific" are made under trademark license from the Union Pacific Railroad Company.
This model can be found in a DC version in the Trix H0 assortment under item number 25984. The special run for the anniversary "150 Years of the Golden Spike" in May of 2019 can be modelled with this locomotive together with the 37997 Big Boy and the 43617 passenger car set.