Rapido 50209 HO Scale EMD SD7 Diesel EMD Demonstrator 991 Roadname_P&R At rotation

At rotation

served as a training platform and frontline scout vehicle

Basic island superstructure

Bowser 42548 HO Scale PRR N5 Caboose Cabin Conrail MOW CR 30008

Rapido 50209 HO Scale EMD SD7 Diesel EMD Demonstrator 991 Roadname_P&R At rotationRapido 50209 HO Scale EMD SD7 Diesel EMD Demonstrator 991 The SD7 was General Motors Electro Motive Divisions first foray into 6 axle power. The SD stood for Special Duty, while the 7 was carried over for the 4 axle GP7 series. This new series of locomotives provided extra tractive effort spread and weight distribution across the six axle trucks. Production lasted from May of 1951 to November of 1953. A total of 188 units were built for 17 railroads,