No Dynamic Braking
In January 1954, Union Pacific took delivery of 40 EMD GP9 units without dynamic braking (UP 205-244). No. 224 made an appearance in Salt Lake City, Utah on May 27, 1978. It would be retired in Feb. 1979 and sold to Morrison Knudsen in Boise, Idaho who rebuilt it (adding dynamics) and sold to Kyle Railways, lettered for San Diego & Arizona Eastern as No. 101 in March 1980. Info from UtahRails.net
No Dynamic Braking
In January 1954, Union Pacific took delivery of 40 EMD GP9 units without dynamic braking (UP 205-244). No. 224 made an appearance in Salt Lake City, Utah on May 27, 1978. It would be retired in Feb. 1979 and sold to Morrison Knudsen in Boise, Idaho who rebuilt it (adding dynamics) and sold to Kyle Railways, lettered for San Diego & Arizona Eastern as No. 101 in March 1980. Info from UtahRails.net