The first Challengers were conceived in 1936 as fast freight engines to replace the Union Pacific's fleet of three-cylinder 4-12-2 locomotives

Model Number: 20001738

Trainz Product Id: 12501180

Pennsylvania Railroad #8601 (brunswick green)

Model Number: G69424

Broadway Limited 4081 HO PRR Railroad Class M1a 4-8-2 Steam Engine #6761 ProductID_12298608 The first Challengers were conceivedThis is a Broadway Limited 4081 HO Scale Pennsylvania Railroad PRR Class M1a 4 8 2 Post 1946 Version with Sound& DCC Paragon2 #6761 (black, graphite, Tuscan). Industry Leading Features: Paragon3 Sound & Operation System FEATURINGROLLING THUNDERTM with Authentic Sounds and Prototypical Operation in both DC and DCC environments, Integral DCC Decoder with Back EMF for Industry Best Slow Speed Operation in DC and DCC, Precision Drive Mechanism engineered