EMD SD70 series

EMD SD70M #7004 Lease unit, shortly before being sold to CSX Transportation.
Power type	Diesel-electric
Builder	General Motors Electro-Motive Division (EMD)
Model	SD70, SD70M, SD70I, SD70MAC, SD70M-2, SD70ACe
Build date	1992 – current
Total production	120(SD70), 1,646(SD70M), 26(SD70I), 1,124(SD70MAC), 185(SD70ACe), 130(SD70M-2) - Over 3,000 Total
AAR wheel arr.	C-C (UIC: Co'Co' )
Gauge	4 ft 8½ in (1,435 mm) for the North American market; 1600 mm (5 ft 2 in) for Brazil
Prime mover	EMD 16-710-G3
Cylinders	16
Transmission	AC alternator, AC traction motors (SD70MAC/SD70ACe), DC traction motors (SD70/SD70I/SD70M/SD70M-2)
Career	See Article
Number	See Article
Disposition	Most still in service as of 2008

The EMD SD70 was a series of diesel-electric locomotives produced by the Electro-Motive Diesel beginning in 1992. Electro-Motive Diesel Inc (formerly the Electro-Motive Division of General Motors Corporation is currently the world's second largest builder of Railroad Year 1992 ( MCMXCII) was a Leap year starting on Wednesday (link will display full 1992 Gregorian calendar) The AAR wheel arrangement system is a method of classifying locomotive (or unit Wheel arrangements that was developed by the Association of American Railroads. The UIC classification is a comprehensive system for describing the Wheel arrangement of Locomotives Multiple units and Trams It is Rail gauge is the distance between the inner sides of the two parallel rails that make up a railway track. |utc_offset = -2 to -4 |time_zone_DST = BRST |utc_offset_DST = -2 to -5 |cctld In Locomotives, a prime mover is the primary source of power to run the locomotive The EMD 710 is a line of Diesel engines built by Electro-Motive Diesel (previously General Motors ' Electro-Motive Division A cylinder is the central working part of a Reciprocating engine, the space in which a Piston travels 2008 ( MMVIII) is the current year in accordance with the Gregorian calendar, a Leap year that started on Tuesday of the Common A number of vehicles use a diesel-electric Powertrain for providing locomotion. Electro-Motive Diesel Inc (formerly the Electro-Motive Division of General Motors Corporation is currently the world's second largest builder of Railroad Year 1992 ( MCMXCII) was a Leap year starting on Wednesday (link will display full 1992 Gregorian calendar) Over 4000 locomotives in this series were produced, mostly of the SD70M and SD70MAC models. All locomotives of this series are hood units with C-C trucks. A hood unit, in Railroad terminology, is a body style for diesel and electric Locomotives On a hood unit the body of the locomotive is less than full-width The AAR wheel arrangement system is a method of classifying locomotive (or unit Wheel arrangements that was developed by the Association of American Railroads. All SD70 models up to the SD70ACe and SD70M-2 have the HTCR Radial truck, rather than the HT-C truck; the self-steering radial truck was designed to allow the axles to steer in curves, reducing wear on the wheels and railhead. The HT-C truck was created in 1970 by Electro-Motive Diesel (EMD as a component of their range of railway locomotives through to 1994 With the introduction of the SD70ACe and SD70M-2, in an effort to reduce cost EMD introduced a new bolsterless non-radial HTSC truck as the standard truck for these models. The radial truck, now the HTCR-4, is still an option.

Models

GM-EMD has produced several different models in the SD70 series for different customer requirements.

SD70

Norfolk Southern 2561

Foregoing the larger new comfort cab for the smaller standard or spartan cab common on older locomotives. This model also has DC traction motors, which simplifies the electrical system by cutting out the need for computer-controlled inverters. See also Electric vehicle, Electric motor A traction motor is a type of Electric motor used to power the driving wheels of a vehicle such as An inverter is an electrical or electro-mechanical device that converts Direct current (DC to Alternating current (AC the resulting AC can be at any required voltage 120 examples of this model locomotive were produced, for Norfolk Southern, Conrail, Illinois Central and Southern Peru Copper. This article is about the present railroad formed in 1990 For the former regional railroad in Virginia and North Carolina a small part of the new one see Norfolk Southern Consolidated Rail Corporation, also known as Conrail, began operations on April 1, 1976 as a federally funded takeover of the major railroad The Illinois Central, sometimes called the Main Line of Mid-America, was a railroad carrier in the central United States, with its primary routes (Conrail was partly absorbed by Norfolk Southern in 1999, and all 24 of Conrail's SD70 engines went to NS. Consolidated Rail Corporation, also known as Conrail, began operations on April 1, 1976 as a federally funded takeover of the major railroad This article is about the present railroad formed in 1990 For the former regional railroad in Virginia and North Carolina a small part of the new one see Norfolk Southern These SD70s were ordered to NS specifications, as NS and CSXT modified CRs SD80MAC order for SD70s for NS and SD70MACs for CSX)

Production of the standard cab at London ended in 1994. The 24 CR SD70s were assembled from kits at Juniata, and the IC and SPC SD70s were assembled from kits at Super Steel Schenectady. Nearly all SD70s are still in service with Norfolk Southern and Canadian National, which merged with the Illinois Central in 1999.

Numbers: NS 2501-2556 ^[1], 2557-2580 (Ex-Conrail), IC 1000-1039 (IC 1006, 1013, 1014, 1023 wrecked & retired).

SD70M

CSXT 4694 provides the sole power on a loaded phosphate train -- Pierce, Florida.

The SD70M has a wide nose and a large comfort cab (officially known as the "North American Safety Cab"), allowing more crew members to ride comfortably inside of the locomotive than the older standard cab designs. There are two versions of this cab on SD70M's, the Phase I, which was introduced on the SD60M, and is home on the SD80MAC & SD90MAC's and the Phase II, which made a return to a more boxy designs ala the original 3 window SD60M cabs. Though the Phase II cab has a two piece window matching the Phase I cab windows, the lines of the nose are boxy, with a taller square midsection for more headroom. The SD70ACe/SD70M-2 line has what is considered the Phase II cab, but it is actually more so a Phase III cab, as the windows went from the teardrop design to a rectangular window. Like the SD70, the SD70M also uses DC traction motors. Starting in mid-2000, the SD70M was produced with SD45-style flared radiators allowing for the larger radiator cores needed for split-cooling (split-cooling is a feature that separates the coolant circuit for the prime mover and the circuit for the air pumps and turbocharger). The EMD SD-45 is a six-axle diesel Locomotive built by General Motors Electro-Motive Division between December 1965 and December 1971 There are two versions of this radiator, the older version with two (2) large radiator panels per side, and the newer style with four (4) square panels per side. This was due to the enaction of the EPA's Tier I environmental regulations. Production of the SD70M was replaced by the SD70M-2 in late 2004, as the EPA's Tier II went into effect on January 1, 2005. New Year See also New Year The Ancient Romans began their consular year on January 1st since 153 BC Year 2005 ( MMV) was a Common year starting on Saturday (link displays full calendar of the Gregorian calendar. 1,646 examples of this model locomotive were produced. SD70M models were produced with 4000 horsepower (2,980 kW) EMD Model 710 prime movers. The EMD 710 is a line of Diesel engines built by Electro-Motive Diesel (previously General Motors ' Electro-Motive Division Purchasers included the Union Pacific, Southern Pacific (now UP), CSX and Norfolk Southern.

EFC (CVRD) #714, in Maranhão, Brazil. Vale is a diversified Mining Multinational corporation and one of the largest Logistics operators in Brazil. Maranhão (maɾaˈɲɐ̃w̃ is one of the states of Brazil in the north-eastern region |utc_offset = -2 to -4 |time_zone_DST = BRST |utc_offset_DST = -2 to -5 |cctld

This locomotive model is also built for export, and is still catalogued by EMD (at 4300hp). CVG Ferrominera Orinoco has 6 SD70Ms that were built as an add-on order to UPs FIRE cab equipped SD70Ms. Companhia Vale do Rio Doce (CVRD) in Brazil has ordered 27 of this model for service in Carajas pulling trainloads of iron ore. Vale is a diversified Mining Multinational corporation and one of the largest Logistics operators in Brazil. |utc_offset = -2 to -4 |time_zone_DST = BRST |utc_offset_DST = -2 to -5 |cctld Iron (ˈаɪɚn is a Chemical element with the symbol Fe (ferrum and Atomic number 26 Since CVRD track is gauged at 1600 mm, a wider bogie, the HTSC2, was designed for these units by EMD. Rail gauge is the distance between the inner sides of the two parallel rails that make up a railway track. The Millimetre ( American spelling: millimeter, symbol mm) is a unit of Length in the Metric system, equal to A bogie (ˈboʊgi (BŌ-gē is a Wheeled wagon or trolley In mechanics terms a bogie is a Chassis or framework carrying wheels attached to a vehicle ^[2]

Numbers: UP 2001-2002, 3778-5231 (4687 Withdrawn), EMD 7000-7024 to CSXT 4675-4699, NS 2581-2648

SD70I

The SD70I is a version of the SD70M which has been fitted with a cab that is isolated from the frame of the locomotive with rubber gaskets (officially known as a "WhisperCab"). The isolation reduces noise and vibration from the prime mover. A seam is visible across the nose and on the long hood where the cab connects with the body. 26 examples of this model locomotive were produced, all for Canadian National. The WhisperCab feature was incorporated into some SD70MAC and later models.

Numbers: CN 5600-5625

SD70MAC

EMD SD70MAC, BNSF 9819

A comparison of the various versions of the SD70M as operated by Union Pacific

The SD70MAC (colloquially known as a "Mac" or a "Mac 70") is very similar to the SD70M and SD70I (the SD70I's WhisperCab feature was a build-to-order option), the main difference being that the SD70MAC uses AC traction motors. AC motors, while more simple and reliable than DC motors, require substantially more expensive inverters to generate a variable-frequency AC signal. The majority of SD70MAC models were produced with 4000 horsepower (2,980 kW) EMD Model 710 prime movers, while later-production SD70MACs are rated at 4300 horsepower (3,210 kW) and feature SD45-style flared radiators. The EMD 710 is a line of Diesel engines built by Electro-Motive Diesel (previously General Motors ' Electro-Motive Division The EMD SD-45 is a six-axle diesel Locomotive built by General Motors Electro-Motive Division between December 1965 and December 1971 They were also offered with a head-end power generation system for passenger trains. (The SD70MAC is no longer produced due to EPA regulations and has been replaced by the SD70ACe. ) Over 1500 examples of this locomotive model were produced. Purchasers include Burlington Northern (now BNSF), Conrail (engines now owned by CSX), CSX, TFM/Kansas City Southern and the Alaska Railroad. The BNSF Railway headquartered in Fort Worth, Texas, is one of the four remaining Transcontinental railroads and one of the largest railroad networks in Kansas City Southern (, is the Parent company of many Railroads and railroad related companies The Alaska Railroad is a Class II railroad which extends from Seward and Whittier, in the south of the state of Alaska, in the United States

Numbers: ARR 4001-4016, 4317-4324, BNSF 8800-8989 (8876 Withdrawn), 9400-9499 (Ex BN), 9504-9999, CSXT 4500-4574, 4575-4589 (Ex Conrail), 4701-4830, TFM 1600-1674 ^[3]

SD70ACe

CSX SD70Ace # 4845 leads train Q410 through South Plainfield, NJ in February 2005. South Plainfield is a Borough in Middlesex County, New Jersey, United States. Photo by Jonathan Berkemeyer

The SD70ACe is similar to the SD70MAC; however, it has been updated to meet the latest EPA regulations for road locomotives. Several other changes were included as well. The radiator on the locomotive is nearly as wide as the cab, and looks similar to the radiator on the SD80 and SD90 series of locomotives. The nose has been modified, producing a much more angular nose than previous models. The cables and brake lines have been routed beneath the walkways, allowing for easy access by maintenance workers. SD70ACe models are rated at 4,300 horsepower. As of 2005, 185 examples of this model locomotive have been produced. Year 2005 ( MMV) was a Common year starting on Saturday (link displays full calendar of the Gregorian calendar. Purchasers include BNSF, CSX, Ferromex, Kansas City Southern, Montana Rail Link, CVG Ferrominera Orinoco, and Union Pacific. The BNSF Railway headquartered in Fort Worth, Texas, is one of the four remaining Transcontinental railroads and one of the largest railroad networks in Ferromex (a contraction of Ferrocarril Mexicano or "Mexican Railroad" is a private rail consortium that operates the largest (by mileage Railroad in Kansas City Southern (, is the Parent company of many Railroads and railroad related companies

This locomotive model is also being produced for export. In 2004, BHP Billiton of Australia ordered 14 SD70ACe/lc locomotives for use in iron ore hauling; the "lc" in the model designation stands for "low clearance" as these locomotives are designed to negotiate the tight clearances under the mine equipment. For a topic outline on this subject see List of basic Australia topics. Iron (ˈаɪɚn is a Chemical element with the symbol Fe (ferrum and Atomic number 26 BHP has also ordered an additional 10 SD70ACe/lcs, these will have a newly designed isolated cab. ^[4][5] On 29 August 2007, EDI Rail announced that BHP Billiton has placed an additional order for 13 SD70ACe/lcs locomotives, due for delivery in early 2009. [1]

Six unique UP "Heritage" paint schemes on SD70ACe locos (such as 1989 and 1995) came to life in Horicon, Wisconsin. Union Pacific 1989 is an EMD SD70ACe Locomotive owned by Union Pacific Railroad (UP Union Pacific 1995 is a Diesel-electric locomotive owned by Union Pacific Railroad (UP Horicon is a city in Dodge County, Wisconsin, United States. The population was 3775 at the 2000 census In October 2005, UP 4141 was renumbered from UP 8423, and was re-painted in a Air Force One style white/blue and silver paint scheme commemorating the nation's 41st President, George H. W. Bush. Union Pacific 4141 is an EMD SD70ACe Locomotive owned by Union Pacific. WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout George Herbert Walker Bush (born June 12 1924 served as the forty-first President of the United States from 1989 to 1993

Numbers: BNSF 9130-9329(delivery underway) 9330-9399, CSXT 4831-4850, FXE 4000-4019, KCS 3997-3999(ex EMD demonstrators), 4000-4029, 4030-4059, 4060-4129, MRL 4300-4315, UP 1982, 1983, 1988, 1989, 1995, 1995 (Heritage Fleet), 4141 (Bush unit), 8309-8423, 8424-8523, 8524-8623(Actually 8521-8620 because 8521-8523 carried their nos for the 3rd time)

SD70M-2

Norfolk Southern SD70M-2 #2700 leads train 21M through Easton, PA in July 2006. This article is about the present railroad formed in 1990 For the former regional railroad in Virginia and North Carolina a small part of the new one see Norfolk Southern Easton is a city in Northampton County, in the eastern region of Pennsylvania, in the United States. Photo by Jonathan Berkemeyer

The SD70M-2 is GM-EMD's (EMD is no longer a division of General Motors; it was sold to Greenbriar Equity Group LLC and Berkshire Partners LLC in the first quater of 2005) DC traction version of the SD70ACe, and the two models are nearly identical in every other respect. SD70M-2 models are rated at 4,300 horsepower each. As of 2007, 180 examples of this model locomotive have been produced. Year 2007 ( MMVII) was a Common year starting on Monday of the Gregorian calendar in the 21st century. Examples are owned by Norfolk Southern, CIT Financial [2], Canadian National[3] and four units for the Florida East Coast Railway. This article is about the present railroad formed in 1990 For the former regional railroad in Virginia and North Carolina a small part of the new one see Norfolk Southern The Florida East Coast Railway is a Class II railroad operating in the U

Road Numbers: CITX 140-142, CN 8000-8024 and 8800-8849, FEC 100-103, NS 2649-2778,

Original Buyers

References