. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . hese main line locomo-tives (30 freight and 12 passenger) andtwo switching locomotives. The locomo-tives are the first to be used for railroadservice with direct current motors op-crating at a potential as high as 3,000\olts and the first to use direct currentregeneration. The passenger locomotivesare equipped with a gear ratio permittingthe operation of 800 ton trailing trains atspeeds of approximately 60 miles perhour on tangent level track. The averagepassenger train weighs from 650 to 700
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . hese main line locomo-tives (30 freight and 12 passenger) andtwo switching locomotives. The locomo-tives are the first to be used for railroadservice with direct current motors op-crating at a potential as high as 3,000\olts and the first to use direct currentregeneration. The passenger locomotivesare equipped with a gear ratio permittingthe operation of 800 ton trailing trains atspeeds of approximately 60 miles perhour on tangent level track. The averagepassenger train weighs from 650 to 700tons and is hauled over the two per without a helper. The freight loco-tnotives are designed to haul a 2,500-tontrailing train at approximately 16 milesper hour on all grades up to and includingone per cent. On two per cent, gradesthe trailing load was limited to 1,250 tons,although this ligure has been exceeded inactual operation. Each locomotive is equipped with eightType GE-2S3-A, 1,500-volt motors, insu-lated for 3,000 vnlts to ground. Thismot>r lias a tiomial nnc hniir rating of. GENERAL VIEW \LLS D.\M AND POWER HOUSE AT , 4— KEED. comprises from four to six trains daily ineach direction. Westbound, the tonnageis made up of manufactured products andmerchandise for Pacific Coast points andforeign shipment. Eastbound tonnageincludes grain, lumber, products of themines and some live stock. As a large part of the traffic is throughfreight, trains are made up of an assort-ment of foreign cars, including box andflat cars, coal and ore hoppers, stock cars,refrigerators, etc., varying in weight from11 to 25 tons empty and as high as 70tons loaded. These cars being owned bymany different railway systems are equip-ped with air Iirakes adjusted for differentconditions of operation, and in accord-ance with different standards as to brak-ing power and type of equipment, thusmaking the problem of holding the longtrains on the
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