Walthers Proto 920-40734 HO Scale EMD SD7 Pennsylvania PRR 8589 with DCC/QSI Sound - USED Sailboat A tough TVP composite chassis

A tough TVP composite chassis

lightweight - conservatively geared stadium trucks and buggies that want the ultimate in speed

and a full decal sheet for accurate squadron markings

Dust / Water Resistance: IP67 Rating

Walthers Proto 920-40734 HO Scale EMD SD7 Pennsylvania PRR 8589 with DCC/QSI Sound - USED Sailboat A tough TVP composite chassisWalthers Proto 920 40734 HO Scale EMD SD7 Pennsylvania PRR 8589 with DCC QSI Sound USED Originally intended for use on branch lines, EMD introduced its Special Duty series in 1952 with the SD7. This loco also introduced the three axle Flexi Coil truck with its powered center axle. This was a major departure from earlier three axle designs where an unpowered center axle was used to spread the engine's weight over more wheels, reducing the strain on the