Union Pacific 'Challenger' Production Models 

An overall view of this version #3 Challenger shows off the classic lines and well balanced appearance that has earned the 'Big' UP Challengers the reputation for being among the most handsome of all steam locomotives. When referring to the 'Big' Challengers, this is to differentiate them from the earlier 3800 class Challenger locomotives also operated by the Union Pacific.

1600 x 320 pixel High Resolution Image