Athearn RTR 1520 HO Scale EMD GP50 BNSF 3146 DCC/Sound UniTrack - Platform The testbed units would be

The testbed units would be dubbed “Phase Ia”

Operates on O-31 or greater curves

Lionel 2331180 O Scale Legacy 2-6-0 Steam Locomotive (2000s) Strasburg 89 (BTO)

Gondolas are used as idler cars for extra breaking power and in case of bridge weight restrictions

Athearn RTR 1520 HO Scale EMD GP50 BNSF 3146 DCC/Sound UniTrack - Platform The testbed units would beAthearn RTR 1520 HO Scale EMD GP50 BNSF 3146 DCC Sound The EMD GP50 is a 4 axle diesel road switcher locomotive built by General Motors Electro Motive Division between 1980 and 1985. It is powered by a 16 cylinder EMD 645F3B diesel engine, which can produce between 3,500 and 3,600 hp. A total of 278 examples of this locomotive were built. The GP50 retains the same overall length of 59 feet 2 inches as the other GP dash 2 series locomotives built in