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13-558: Part of the EMD Dash 2 line, the SD45-2 was an upgraded SD45 . Like the SD45, the SD45-2 had an EMD 645E3 20- cylinder engine producing 3,600 horsepower (2,680 kW). The main spotting difference between an SD45 and an SD45-2 was the long hood and the rear radiator. On the SD45 the long hood is flared whereas on the SD45-2 it is vertical and the rear cooling fans are more spread out on

26-506: A number of improvements to the locomotives' internal systems, specifically the electrical systems and the trucks of the locomotives. These were intended to improve availability, efficiency, and ease of maintenance. One major improvement was a modularized electrical control cabinet, allowing maintenance by unit replacement and the use of common parts. These concepts were first tested on the DDA40X . Minor externally visible changes common across

39-572: Is 3 feet (0.914 m) longer than its EMD 567D3A -engined predecessor, the GP35 , and distinguished visually by its three 48-inch radiator fans at the rear of the long hood, while the GP35 has two large fans and a smaller one in between. It was built on a 55 ft (16.76 m) frame; the GP35 was built on a 52 ft (15.85 m) frame - as was the GP7, 9, 18, and 30. The difference in length can be seen in

52-574: Is a stub . You can help Misplaced Pages by expanding it . EMD Dash 2 The EMD Dash 2 is a line of diesel-electric locomotives introduced by General Motors ' Electro-Motive Division (EMD) on January 1, 1972. Designations of these models were those of the former models with "-2" added (e.g., the SD40 was replaced by the SD40-2). They retained the basic specifications of the earlier models in terms of power output and most other features, but introduced

65-621: The GP40P and GP40TC , were also built, but on longer frames to accommodate steam generators and HEP equipment. On January 1, 1972, the GP40 was discontinued and replaced by the GP40-2 , which has a modular electrical system and a few minor exterior changes. Union Pacific has rebuilt 129 of their GP40's and GP40-2's into GP40N's at their Jenk's shop. These units received a microprocessor control system to increase adhesion, control options, and extend

78-804: The Southeastern Railway Museum in Duluth, Georgia , making it the first SD45-2 to be preserved. On October 6, 2021, BNSF donated SD45-2 #6484 (ex: ATSF #5704, one of 5 units to receive a bicentennial scheme) to the Southern California Railway Museum (SCRM) in Perris, California . It was restored to its bicentennial scheme as ATSF #5704, and is currently stored in Commerce, California , awaiting delivery to SCRM. This diesel locomotive-related article

91-511: The dynamic brakes were moved to the opposite end of the hood from the radiators ; they were originally near the center of the hood. With no cab, these B-units are controlled from other locomotives. In September 2015, Norfolk Southern revealed SD45-2 #1700, which was painted back to its Erie Lackawanna color scheme at Chattanooga, Tennessee. This is the second unit from an NS predecessor painted back into its original colors. On August 31, 2018, CSX donated former SD45-2 #8954 (ex: SCL #2049) to

104-430: The GP40's ten handrail stanchions compared to the GP35's nine. 1,187 GP40s were built for 28 U.S. railroads ; 16 were built for one Canadian carrier , Canadian National ; and 18 were built for two Mexican carriers , Ferrocarril Chihuahua al Pacífico and Ferrocarriles Nacionales de México . 60 units were built with high-short-hoods and dual control stands for Norfolk & Western Railway . Two passenger versions ,

117-645: The most versatile and reliable diesel-electric locomotive of its time, if not all-time. Although not as popular as the SD40-2 rebuilds, GP40s , GP39 / SD39s and GP38 / SD38s have also been rebuilt to the equivalent of GP40-2s , GP39-2 /SD39-2s and GP38-2 / SD38-2s , so significant were the reliability and serviceability advantages of the Dash 2 line. Models subsequent to the Dash 2 line, for example SD50 , SD60 and SD70 , et al., incorporated Dash 2 improvements at

130-431: The outset. In this context, the model suffix -2 is only applicable to the 40 Series , although -2 has been applied to certain variations of the later models. EMD GP40 The EMD GP40 is a 4-axle diesel-electric locomotive built by General Motors' Electro-Motive Division between November 1965 and December 1971. It has an EMD 645E3 16- cylinder engine generating 3,000  hp (2,240 kW). The GP40

143-403: The same as on the "donor" locomotive. In many cases, the rebuilds are identified as, for example, an SD40-3 or an SD40M-2, or an equivalent distinguishing identification. In some cases, the locomotive is identified simply as an SD40-2, although it is clear through physical examination that it is a rebuild. Once so rebuilt, the locomotive enters the owner's fleet as if it were a true SD40-2, arguably

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156-592: The top of the rear of the long hood. This unit used the same frame as the EMD SD40-2 and EMD SD38-2 . The largest owner of the SD45-2 was the Atchison, Topeka, & Santa Fe with 90 units, the Clinchfield had 18 units, Seaboard Coast line had 15 units and Erie Lackawanna rostered 13 units. A few cabless SD45-2Bs were built by Santa Fe from units undergoing remanufacturing. In all but one case (5510),

169-425: The whole line include the following: The Dash 2 line was highly successful. The models offered included the following: In addition, many other earlier locomotives were rebuilt to Dash 2 standards by numerous locomotive rebuilders and railroad shops. Among the most popular rebuilds are SD40 , SD45 , SD40T-2 and SD45T-2 into the functional equivalent of an SD40-2 , although the frame, carbody and trucks remain

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