Page:Model Steam Locomotives by Greenly Henry.pdf/36

Locomotive Types of a inndcrn Ainerican (‘nirine ran be copied. While the increased length of boiler barrtd cerLaiidy adds to the capacity and length of run, a pro})ortionate degree of added evaporative power must not be expecietl from the longer tubes. A model based on the G.W.R. “Great Bear” must also not be expected to make a satisfactory locomotive if fitted with a water-tube bailer and a short, wide firebox. As in the case of the 4—G—0 type, a long firebox is to be desired, which feature the “Great Bear” does not provide.

Fig.38.—Model 0—4—4 Suburban Traffic Tank Engine.

Fig. 39.—Six-coupled Engine Built by Mr. A. F Brough. 27