. American engineer and railroad journal . to rumors of still greater propor-tions which are promised for the near future. This road isleading in the matter of weight and power of locomotives, and engines in the issue referred to. The Atchison engine has aLaird crosshead. This engine is enormous. Its total wheel base is 28 ft. 11ins., or 11 ins. greater than any other of our record. Its driv-ing wheel base is 20 ft., or 8 ins. greater than that of the Sooengine, illustrated in our volume of 1900, page 319. The totalheating surface is 4,681 sq. ft., or 415 sq. ft. greater than thatof the oil-bu
. American engineer and railroad journal . to rumors of still greater propor-tions which are promised for the near future. This road isleading in the matter of weight and power of locomotives, and engines in the issue referred to. The Atchison engine has aLaird crosshead. This engine is enormous. Its total wheel base is 28 ft. 11ins., or 11 ins. greater than any other of our record. Its driv-ing wheel base is 20 ft., or 8 ins. greater than that of the Sooengine, illustrated in our volume of 1900, page 319. The totalheating surface is 4,681 sq. ft., or 415 sq. ft. greater than thatof the oil-burning engine for this road (page 10, January is-sue), which was the largest heating surface previously tube heating surface is 4, sq. ft., with 413 , 18 ft. 6 ins. long, these Deing the longest tubes in ourrecord of freight engines. The tubes are spaced 13-16 As shown in the boiler sections, the grate is 9 ft. longby 6 ft. 7 ins. wide, and the firebox has straight sides with ■.. .::~-~l e c c - Ti i. W?...^;... j L_ I JZf---^ K- -44i- .60a. .*/- - as-Cast Steel Frames, Shewing Unusually Heavy OP HEAVY FREIGHT LOCOMOTIVES. Railroad P. B. & L. Union Lehigh Builder Pittsburgh Pittsburgh Baldwin Slple or Compd. Simple Simple Vauclain Coznpd Type Consolidation ..Consolidation ..Consolidation ... Total weight Welgt on drtvrs. Size of in 54 in >5 in Cylinders 24 x 32 in 23 x 32 In { 30 Jfy a^dln Heating surface. sq. ft sq. ft sq. ft Orate „„„ sq. ft sq. ft 90 sq. ft Steam 220 lbs 200 lbs 200 lbs Ratio of totalweight to heat-ing surface American Englnrreference 1900. page 1898, page , page 395 Illinois N. P Atchison. Brooks Baldwin Amer. Loco. Amer. Loc Simple Vauclain Compd. 12-wheel Consolidation ....Consolidati
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