. American engineer and railroad journal . e service, and is not always capableof realization. 5. That the system of three-men crews may, in certain casesbe substituted advantageously for that of double crewlng. It may he added, in conclusion, that other systems than thatof the single crew have little to commend ihem for fast expresstrain service, which demands engines in a perfect erudition ofrepair and well understood by the englnemen who handlethem. Under usual conditions the economizer will save 12 to 15per i ent. of the coal bill each year without reducing the tem-perature of the gases su
. American engineer and railroad journal . e service, and is not always capableof realization. 5. That the system of three-men crews may, in certain casesbe substituted advantageously for that of double crewlng. It may he added, in conclusion, that other systems than thatof the single crew have little to commend ihem for fast expresstrain service, which demands engines in a perfect erudition ofrepair and well understood by the englnemen who handlethem. Under usual conditions the economizer will save 12 to 15per i ent. of the coal bill each year without reducing the tem-perature of the gases sufficiently to seriously affect the amount saved would be, under ordinary conditions, aboutenough to pay for the cost of the economizer in three we consider the fact that the economizer is very dur-able and costs but little for repairs, it will be seen that as aninvestment it promises to return an exceedingly large interest.—Prof. It. C. Carpenter in Power ami Transmission. 388 AMERICAN ENGINEER AND RAILROAD SECTION AT4-A. «-/!- FIG. 1.—60-FOOT HOR !E CAR.—CENTRAL RAILROAD OF NEW JERSEY. -^1
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