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The main difference between rebuilt SD40 and genuine SD40-2 is that the latter use a longer frame and has longer front and rear porches, while the rebuilt SD40 have a shorter frame. A common product of rebuilding SD40s, and sometimes SD40-2s, is an SD40-3. The major addition denotes that the rebuilt unit or units as an SD40-3 is the addition of ...
The GMD SD40-2(W) is a Canadian-market version of the SD40-2 diesel–electric locomotive, built for the Canadian National Railway (CN) by the Diesel Division of General Motors of Canada Ltd. (formerly General Motors Diesel) of London, Ontario; 123 were constructed between May 1975 and December 1980.
This is a summary, listing every diesel locomotive from the SD40-series in preservation. This list includes the models SD40 , SDP40 , SD40A , SD40-2 , SDP40F , SD40T-2 , SD40-2W , SD40-2S . SD40
The locomotives were GP38-2s, GP40-2s and GP40-2Ls, and SD40-2s. To denote the comfort cab locomotives, a "W" was often applied at the end of the model name (i.e. GP38-2W, GP40-2W, SD40-2W), although this was not an official designation. The Montreal Locomotive Works also offered a competitive cab design on their M-420 and M-630(W) models. EMD ...
The later SD40T-2 looks similar to the SD45T-2. One spotting difference is the longer hood on the SD45T-2 to accommodate the V20 prime mover vs. the V16 used on the SD40T-2. The SD45T-2's cab is further forward on the frame, so there is less "front porch". This mimics the differences between the SD45-2 and the SD40-2. Another spotting ...
The hood unit evolved from the switcher locomotive. A switcher's long hood is normally low enough that the crew can see over it, and there typically is no short hood. Alco introduced the road switcher concept with the RS-1, which was an enlarged switcher with a short hood ahead of the cab. This was added to provide protection for the crew in ...
The tire diameter is given for High Flotation tires and omitted from Numeric tires. 2-digit number: The diameter of the tire in inches. x: Separator character. 3- or 4-digit number: The section width (cross-section) of the tire in inches. If the tire diameter is not given, section widths ending in zero (e.g., 7.00 or 10.50) indicate the aspect ...
The SD39 is a model of 6-axle diesel-electric locomotive built by General Motors Electro-Motive Division between August 1968 and May 1970. 54 were built for American railroads. [1] In 1966, EMD replaced all their old models with new ones having the new 645 diesel. These included six-axle models SD38, SD40, SDP40 and SD45; the SD39