Southern Pacific considered passenger locomotives to be distinct - they should deliver 2,000 or more horsepower per unit and would ride on six-wheel trucks that carried traction motors only on the outer axles, leaving the center axles as idlers. These locomotives were all initially purchased wearing distinctive passenger paint jobs. Eventually, SP would accumulate a roster of 28 Electro-Motive and 66 ALCO passenger diesels, all of them in service together for the few brief years between 1955 and 1962.
In addition to its formal passenger diesels, SP ordered over two hundred passenger-equipped four-axle F7, F7B and FP7 units. They provided backup power for mail trains, passenger locals, holiday specials, troop movements and even many railfan excursions. Every one of these (with the glaring exception of one Cotton Belt FP7) was painted as delivered in black widow freight colors. One hundred fourteen passenger F7 A-units carried steam generator controls on the fireman's dashboard - but not a one had its own steam generator aboard. Only the passenger F7 B-units and the seventeen FP7 A-units could make train-heat steam.
These EMD and ALCO machines are documented in detail in Southern Pacific Historic Diesels, Volume 20. There are chapters on each model from each builder, illustrations of variant paint jobs and extensive discussion of SP policies for passenger locomotive utilization. Included are the other passenger diesels, the GP9s and Fairbanks-Morse Train Masters plus various ALCO and EMD hood units used in passenger service. The closing chapter adds a bonus sixteen pages of color.
Acknowledgements, Introduction, pp. 2-11;
City of San Francisco Locomotives, pp. 12-21;
EMD E7 Locomotives, pp. 22-33;
The Only E8 Locomotive #6018, pp. 34-39;
EMD E9 Locomotives, pp. 40-49;
Pacific Lines ALCO PA and PB Locomotives, pp. 50-99;
T&NO and SSW PA-1 Locomotives on the Pacific Lines, pp. 100-109;
ALCO PA Locomotives: T&NO and Cotton Belt, pp. 110-119;
Passenger F7 and F7B Locomotives, pp. 120-141;
FP7 A-Units with Steam Generators, pp. 142-153;
Former SP FP7 and F7B on Amtrak, pp. 154-161;
Passenger Diesels in Color, pp. 162-176.
Shade Tree Books, softcover, 176 pages, 8.5 x 11 x .4 in., 310 B&W photographs, 32 Color photographs, color covers, a complete roster and detailed photograph captions.