Rapido 50613 HO Scale EMD SD7 Diesel Southern Pacific SP Black Widow 5331 with DCC & Sound E-Z Track Turntable Wheel Hex Size: 12mm

Wheel Hex Size: 12mm

Durable LCXU transmission

Have the Cabins

This and other design elements would produce 12% more adhesion in comparison to the Flexi-Coil “C”

Rapido 50613 HO Scale EMD SD7 Diesel Southern Pacific SP Black Widow 5331 with DCC & Sound E-Z Track Turntable Wheel Hex Size: 12mmRapido 50613 HO Scale EMD SD7 Diesel Southern Pacific SP Black Widow 5331 with DCC & Sound 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