Facebook Page
DCGRR ALCO RS-3 Specifications
History Equipment Photo Album Video Clips Projects
Immediately after the end of WW II, the American Locomotive Company (ALCO) produced the RS, Road Switcher Diesels. The third version, the RS-3 ,was first delivered in 1950 to the Great Northern Railway. Over 1,272 were built by ALCO. RS-3’s have been used in local freight train service as well as commuter passenger service. The RS-3’s ran throughout the US, Mexico, Cuba, Canada, and S. America. Production of the RS-3 ceased in 1956.
1:1 Prototype Information

Great Northern #229
Model: RS-3
Whyte symbol: 0-4-4-0
A.A.R. symbol: B-B
Number per unit: One
Type: 12 cyl. 4 cycle, vee, turbosupercharged
Model: Series 244
Cylinders, bore and stroke: 9 by 10 ½
Horsepower available for traction: 1,600
Make: GE
Type: GT-581
Traction Motors:
Number: 4
Make: GE
Type: GE-752
Journal bearings:
Type: Plain
Size: 61/2 by 12
Wheels, diameter: 40
Wheel Base, ft-in:
Distance between truck centers, ft.-in: 30-0
Maximum dimensions, overall, ft.-in.:
Width: 10-0 ¼
Height: 14-3 ½
Length over couple pulling faces: 36-3 ¼
Weights in work order, lb.:
Locomotive, total, approx: 240,000
On drivers, approx: 240,000
Lubricating oil, gal: 200
Fuel Oil, gal: 800
Engine cooling water, gal: 250
Sand, cu. ft: 28
Air brake schedule: 6-Sl
Gear ratio: 74:18, 65:18, 61:19, 62:21
Max speed mph: 65, 75, 80, 92


GN Magazine Ads