This book is about the 334 General Electric 'U-boats' from the U-25B and U50 through U33C locomotives owned by the Southern Pacific and Cotton Belt railroads. Includes system-wide action and portrait photography during the brief time during the 1960s and 1970s when U-series diesels worked everywhere on the Southern Pacific. Includes 180 Black-and-White and 3 Color photographs plus roster.
Contents: Ch. 1: The Decision to Buy GE Units, pp. 3-6; Ch. 2: The U25B Locomotives, pp. 7-25; The U25BE Upgrading Experiment, pp. 26-31; The Sulzer Re-Engine Experiment, pp. 32-35; Ch. 3: The Twin-Engine U50s, pp. 36-46; Ch. 4: The U28B Units, pp. 47-49; Ch. 5: The U28C Locomotives, pp. 50-55; Ch. 6: The U30C Locomotives, pp. 56-67; Ch. 7: The U33C Locomotives, pp. 68-96.
Shade Tree Books, softcover, 96 pages, standard portrait book 8 x 10 in., Black-and-White photographs and detailed roster information.