U30Bs first hit the rails at the end of 1966 as GE's competition to EMD's GP40. Packing 3,000 horses under the hood, U30Bs were ideally suited for handling fast, heavy freights over the road. These new Walthers PROTO 2000 models are accurate replicas of Phase I units and feature the proper radiator arrangement under the rear intake grilles. Each features a five-pole, skew-wound motor with dual flywheels, heavy diecast chassis and applied detail parts! Sound-equipped units feature a QSI(R) sound system and factory-installed DCC decoder that can be operated on DC or DCC layouts.