Rapido 50624 HO Scale EMD SD9 Diesel Burlington CB&Q Yellow Frame 837 with DCC & Sound Roadname_UPS BlackZon 540220 Wheelie Bar Set

BlackZon 540220 Wheelie Bar Set for Smyter MT Turbo

in spite of its small horse power (hardly 24 HP) and the drive on the rear wheels only

The single expansion offered more power and reduced the size of the large pistons needed in a Mallet

giving it an overall length of 44 feet 8 inches

Rapido 50624 HO Scale EMD SD9 Diesel Burlington CB&Q Yellow Frame 837 with DCC & Sound Roadname_UPS BlackZon 540220 Wheelie Bar SetRapido 50624 HO Scale EMD SD9 Diesel Burlington CB&Q Yellow Frame 837 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 units