. American engineer . -win engines have four more 254 in. tubes. This and the differ-ence in details effect the weights as shown below. In general the design is similar to the engines built for theErie about a year ago.* There are two important differencesin the design, however, one being the length of the is 30 in. on the Rock Island and 32 in. on the Erie, andthe other the smaller grate area of 63 ft. on the Rock Island burned the same amount of coal. The consolidation locomotivesare not equipped with superheaters and have 336 2 in. flues,15 ft. 6 in. long, giving a heating surf
. American engineer . -win engines have four more 254 in. tubes. This and the differ-ence in details effect the weights as shown below. In general the design is similar to the engines built for theErie about a year ago.* There are two important differencesin the design, however, one being the length of the is 30 in. on the Rock Island and 32 in. on the Erie, andthe other the smaller grate area of 63 ft. on the Rock Island burned the same amount of coal. The consolidation locomotivesare not equipped with superheaters and have 336 2 in. flues,15 ft. 6 in. long, giving a heating surface of 2,710 sq. ft., agrate area of sq. ft., firebox heating surface of 168 sq. ft.,and a total weight of 213,000 lbs. On the Missouri division, where the largest number ofMikados are now in service, they handle trains of adjustedtons from Silvis (Davenport) to Eldon, la., and from Eldon,la., to Trenton, Mo., about 121 miles, they handle ad-justed tons. In the same two districts consolidations handle. Typical Modern Freight Locomotive of the 2-8-2 Type; Rock Island Lines. as compared with 70 ft. on the Erie. The steam pressure onthe Rock Island engine is 180 lbs., which offsets the shorterstroke and gives these locomotives practically the same tractiveeffort as the Erie design. The smaller grate area was speci-fied on the basis of the experience with the Erie engines. Bothdesigns have superheaters and brick arches, the latter beingsupported on four 3 in. water tubes. *See American Engineer, February. 1912, page 87. and adjusted tons. Eastbound, the tonnage for theMikados is 2,100 adjusted tons from Trenton to Eldon adjusted tons from Eldon to Silvis; for the consolidationsit is 1,480 and 1,140 adjusted tons, respectively. The car factorof this territory is 6. The grades and curvature of these twodistricts are shown in the illustrations. A study of the designshows that while there have been incorporated all of the im-provements which have p
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroa, bookyear1912
