EMD SD75M
Encyclopedia
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 4300 hp, the SD75 was a reality. The unit can be distinguished from the SD70 by the added bulge below the inertial air-intake on the right side of the unit. The "M" in the model designation is the style of the cab
, in this case the North American style cab. The SD75I
had a "WhisperCab" in EMD speak. Both models use the HTCR-II radial truck and are mounted on the 72 in 4 in (22.05 m) frame. This model only sold 76 units and was not as popular as the SD70. The biggest buyers of this model were the Santa Fe, now Burlington Northern Santa Fe
.
Mainly built for a special request from ATSF/BNSF, the SD75M's are slightly more powerful than SD70M's, having horsepower ratings between 4300 hp & 4500 hp. They are almost identical to SD70M's, but can be distinguished by looking for an equipment blower duct on the right side. SD70M's have a blower duct on the left side only (like most EMD's), but SD75M's have a blower duct on both sides of the locomotive.
General Electric
General Electric Company , or GE, is an American multinational conglomerate corporation incorporated in Schenectady, New York and headquartered in Fairfield, Connecticut, United States...
's Dash 9-44CW
GE Dash 9-44CW
The GE C44-9W is a 4,400 hp diesel locomotive built by GE Transportation Systems of Erie, Pennsylvania. Keeping in tradition with GE's locomotive series nicknames beginning with the "Dash 7" of the 1970s, the C44-9W was dubbed the Dash 9 upon its debut in 1993. The design has since proven popular...
. By bumping up the output of the 16-710-G3 engine from 4000 to 4300 hp, the SD75 was a reality. The unit can be distinguished from the SD70 by the added bulge below the inertial air-intake on the right side of the unit. The "M" in the model designation is the style of 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....
, in this case the North American style cab. The SD75I
EMD SD75I
EMD SD75I is a diesel-electric locomotive produced by General Motors Electro-Motive Division .This unit is the same as the EMD SD75M, with , HTCR-II radial trucks and a frame. The only difference between the two models is the cab. The "I" in the model designation stands for Isolated cab, this type...
had a "WhisperCab" in EMD speak. Both models use the HTCR-II radial truck and are mounted on the 72 in 4 in (22.05 m) frame. This model only sold 76 units and was not as popular as the SD70. The biggest buyers of this model were the Santa Fe, now 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...
.
Mainly built for a special request from ATSF/BNSF, the SD75M's are slightly more powerful than SD70M's, having horsepower ratings between 4300 hp & 4500 hp. They are almost identical to SD70M's, but can be distinguished by looking for an equipment blower duct on the right side. SD70M's have a blower duct on the left side only (like most EMD's), but SD75M's have a blower duct on both sides of the locomotive.