International - Great Northern Berkshire Type Locomotives

The International-Great Northern Railroad, part of the Missouri Pacific system, purchased five "Berkshire" type locomotives from the American Locomotive Company in 1928. These locomotives were designated as Class BK-63 and were given road numbers 1121 through 1125.

The Class BK-63 locomotives were, for the most part, similar to all the other Berkshires built by ALCO and had 63" diameter drivers, 28" x 30" cylinders, a 240 psi boiler pressure, they exerted 69,400 pounds of tractive effort and each weighed 404,000 pounds. They were delivered as coal burners with a 100.3 sq. ft. grate area, but were later converted to burn oil.

There are no surviving I-GN 2-8-4 "Berkshire" type locomotives

I-GN 2-8-4 Roster
ClassQty.Road NumbersYear BuiltBuilderNotes
BK-63 51121-11251928ALCO1

Notes
1. Numbers 1121-1125 scrapped in 1953-1954.

Specifications
ClassBK-63
Wheel Arrangement:2-8-4
Length:93' - 10"
Drivers:63" dia.
Weight on Drivers:275,000 lbs.
Locomotive Weight:404,000 lbs.
Locomotive & Tender Weight:689,600 lbs.
Grate Area:100.3 sq. ft.
Cylinders (dia. x stroke):(2) 28" x 30"
Boiler Pressure:240 psi
Tractive Effort:69,400 lbs.
Tender Capacity
Water:15,000 gals.
Coal:18 tons

Photos

References

Much thanks to Richard Duley who has helped to provide a great deal of the information found on this page.