. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . ison between the mod-ern up-to-date powerful freight loco- motive and the most approved designof, say five years ago, for the sameclass of service, it is an important con-tribution to locomotive data, and showsthe remarkable improvement towardeconomy in operation that has beensuccessfully accomplished in locomo-tive design during the past few years. The two consolidation locomotiveswere so similar in design that the aver-age of the results obtained with both,in comparison with the records of
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . ison between the mod-ern up-to-date powerful freight loco- motive and the most approved designof, say five years ago, for the sameclass of service, it is an important con-tribution to locomotive data, and showsthe remarkable improvement towardeconomy in operation that has beensuccessfully accomplished in locomo-tive design during the past few years. The two consolidation locomotiveswere so similar in design that the aver-age of the results obtained with both,in comparison with the records of theMallet serve as an accurate measureof the rotative efficiency of the three The most important comparison isthe saving of per cent, in coalburned per ton-mile in favor of theMallet. The following comparison of the Malletand consolidation locomotives is especiallyvaluable from the fact that it is the firstaxact and reliable test as to the amountof fuel consumed, and the relative per-formances of the two distinct classes oflocomotives, and as such cannot fail tobe of interest to railroad Alt—36- 1 84- 1- to 4- to- i S6i- y --&--- , I,—— A —sei- 1—so- I—~l w- A SO- 4- 30$ 4. SO- H-— I000r>nng>rteil8at*. Fiant fnolnt—A * , iSlffHittl Cagint A -*4fi9Total HheelBase .-. , . , _^ ■J 170 Hh«l Bait, Sac* Engine — —469Toto —S4sTbtal Length- DETAILS OF MALLET FOR THE NEW YORK CENTRAL LINES. was appointed and the test conductedunder their personal direction. Thethree primary objects of the test wereto determine the capacity and eco-nomic performance of the Mallet loco-motive; to discover what modificationsin design, if any, were needed to de-velop it to the highest efficiency for theservice for which it was intended andto determine whether the Mallet loco-motive could be operated at maximumspeeds of 30 miles per hour for pro-tracted periods without injury to trackor locomotive. Following the completi
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