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Southern Pacific experienced problems with locomotives overheating in tunnels. This brought about a major design change in the new SP SD45-2s.
The traditional EMD sidemounted radiators and roof fans were replaced with roof-mounted radiators, internal fans and a large opening at the bottom of the rear of the long hood. This allowed for cooler air to be pulled upward through the radiators.
The new locomotive was nicknamed “Tunnel Motor,” both for the problem it addressed and the opening in the long hood. While SP initially bought the SD45T-2, Rio Grande chose the 3000-horsepower SD40T-2. SP also purchased a large numbers of SD40T-2s.
Today, both SP & D&RGW are gone, absorbed by Union Pacific. But the Tunnel Motors remain, many serving on Class II roads and short lines across North America. And just like the SD40-2's these will continue to work the rails for many years to come.
This release includes and undecorated model along with a variety or road names and numbers to choose from.
General Model Features:
Reservations Due By: April 23, 2015
Expected Release: February 2016
JMP