loco-info.com - Electro-Motive Division SW7, SW8 and SW9

Dimensions and Weights
Length	44 ft 5 in
Wheelbase	30 ft
Rigid wheelbase	8 ft
Service weight	248,000 lbs	230,000 lbs	248,000 lbs
Adhesive weight	248,000 lbs	230,000 lbs	248,000 lbs
Axle load	62,000 lbs	57,500 lbs	62,000 lbs

Boiler

Boiler

Variant	SW7	SW8	SW9

Power Plant

Power Plant

Power
Power source	diesel-electric
Top speed	65 mph
Starting effort	62,000 lbf	57,100 lbf	62,000 lbf
Engine	EMD 12-567A	EMD 8-567B	EMD 12-567B
Engine type	V12 diesel	V8 diesel	V12 diesel
Fuel	600 us gal (diesel)
Engine output	1,200 hp (895 kW)	800 hp (597 kW)	1,200 hp (895 kW)

Calculated Values
Factor of adhesion	1 : 4.00	1 : 4.03	1 : 4.00
Power-to-weight ratio	0.0048 hp/lb	0.0035 hp/lb	0.0048 hp/lb
Adhesive weight/Total	1 : 1.00

diesel locomotive

switcher

last changed: 09 2023

We use cookies to save the following settings:

selected navigation structure
selected language
preferred units
spelling of railway company names

If you refuse the use of cookies, the settings will only be retained for the current session and will be reset to the default values the next time you visit the site.

Display of units

Here you can set the desired unit system for the technical data.

Metric: Lengths in meters, weights in tonnes, and volumes in cubic meters
Imperial (UK): Lengths in feet/inches, weights in long tons and volumes in imperial gallons
Imperial (US): Lengths in feet/inches, weights in pounds, and volumes in US gallons
Individual: Depends on the country of origin of each locomotive

Operator names

Here you can set the display of railway company names.

Short: Abbreviation or short form of the name
Standard: commonly used name, partially translated to English
Complete: full name in local language