EMD SD75I
Encyclopedia
EMD SD75I is a diesel-electric locomotive produced by General Motors Electro-Motive Division
(EMD).
This unit is the same as the EMD SD75M
, with 4300 hp, HTCR-II radial trucks and a 72 in 4 in (22.05 m) frame. The only difference between the two models is the cab
. The "I" in the model designation stands for Isolated cab, this type of cab is recognized by a seam separating the nose and cab components. This seam is the rubber that dampens vibration and cuts down on noise, because the cab is not attached directly to the frame on the unit. This was the last model that used the "I" designation in the model name, later all units had the isolated cab, but the model designation continued to use the "M". Buyers included Canadian National
, the largest buyer with 175 units (now 173), Burlington Northern Santa Fe
with 26, and Ontario Northland Railway
with 6 (now 5).
General Motors Electro-Motive Division
Electro-Motive Diesel, Inc., also referred to as "EMD", is a wholly owned subsidiary of Progress Rail Services Corporation, a wholly owned subsidiary of Caterpillar Inc., that designs, manufactures and sells diesel-electric locomotives and diesel power engines worldwide under the Electro-Motive...
(EMD).
This unit is the same as the EMD SD75M
EMD SD75M
The EMD SD75M is a series of diesel-electric locomotives produced by General Motors Electro-Motive Division in 1994. The series was a response to General Electric's Dash 9-44CW. By bumping up the output of the 16-710-G3 engine from 4000 to , the SD75 was a reality. The unit can be distinguished...
, with 4300 hp, HTCR-II radial trucks and a 72 in 4 in (22.05 m) frame. The only difference between the two models is the cab
Cab (locomotive)
The cab, crew compartment or driver's compartment of a locomotive is the part of the locomotive housing the train driver or engineer, the fireman or driver's assistant , and the controls necessary for the locomotive's operation....
. The "I" in the model designation stands for Isolated cab, this type of cab is recognized by a seam separating the nose and cab components. This seam is the rubber that dampens vibration and cuts down on noise, because the cab is not attached directly to the frame on the unit. This was the last model that used the "I" designation in the model name, later all units had the isolated cab, but the model designation continued to use the "M". Buyers included Canadian National
Canadian National Railway
The Canadian National Railway Company is a Canadian Class I railway headquartered in Montreal, Quebec. CN's slogan is "North America's Railroad"....
, the largest buyer with 175 units (now 173), Burlington Northern Santa Fe
BNSF Railway
The BNSF Railway is a wholly owned subsidiary of Berkshire Hathaway Inc., and is headquartered in Fort Worth, Texas. It is one of seven North American Class I railroads and the second largest freight railroad network in North America, second only to the Union Pacific Railroad, its primary...
with 26, and Ontario Northland Railway
Ontario Northland Railway
The Ontario Northland Railway is a Canadian railway operated by the Ontario Northland Transportation Commission, a provincial Crown agency of the government of Ontario....
with 6 (now 5).