The horsepower race was in full swing by the late 1960s when GE introduced the 3,300hp, four-axle U33B locomotive. 137 units were produced between September 1967 and August 1970 when production ended.
The horsepower race was in full swing by the late 1960s when GE introduced the 3,300hp, four-axle U33B locomotive. 137 units were produced between September 1967 and August 1970 when production ended.