Builder info from B.Rumary, 25 Kingscombe, Gurney Slade, Radstock, BA3 4TH, ENGLAND and Jeremy Lambert as supplied by Allen Stanley in March 2004.
Works numbers were 2803-2805 in September 1897. (Works numbers 2938-2941, road #65-68 were delivered seven months later and seem likely to have been repeats of the 50.)
The RG report on the heavy (50-ton) ore cars used by the PB&LE noted the extensive upgrades to the railroad's right of way (lower ruling grades,100-lb/yard-50 kg/metre rail, two extensive yards, e.g.) and comments: "Thus the road is in shape to move its traffic with expedition."
A typical train consisted of 30 cars of a combined tare weight of 540 gross tons and loaded with 1,500 tons of ore, said the RG. These Moguls came in for special mention because of their relatively great size and power. It seems from the context that they were the motive power for these trains. Four Pittsburgh Locomotive Works Moguls built to the same power and boiler specs were considerably lighter; see Locobase 16079.
All sold for scrap in 1929.
As noted in Locobase 2628's entry on the Brooks trio built to the same specs, a typical train on the PB&LE consisted of 30 cars of a combined tare weight of 540 gross tons and loaded with 1,500 tons of ore, said the RG. These Moguls came in for special mention in the April 1898 report because of their relatively great size and power. It seems from the context that they were the motive power for these trains.
59 was sold for scrap in 1929; the other three were discarded in 1936.
|Specifications by Steve Llanso of Sweat House Media|
|Railroad||Pittsburgh, Bessemer, & Lake Erie||Pittsburgh, Bessemer, & Lake Erie|
|Number in Class||3||4|
|Locomotive Length and Weight|
|Driver Wheelbase (ft)||14||14|
|Engine Wheelbase (ft)||22.42||22.42|
|Ratio of driving wheelbase to overall engine wheebase||0.62||0.62|
|Overall Wheelbase (engine & tender) (ft)||52.33||52.33|
|Axle Loading (Maximum Weight per Axle) (lbs)|
|Weight on Drivers (lbs)||145,400||130,000|
|Engine Weight (lbs)||167,850||149,000|
|Tender Loaded Weight (lbs)||85,000||78,300|
|Total Engine and Tender Weight (lbs)||252,850||227,300|
|Tender Water Capacity (gals)||4000||4000|
|Tender Fuel Capacity (oil/coal) (gals/tons)||8.50||8|
|Minimum weight of rail (calculated) (lb/yd)||81||72|
|Geometry Relating to Tractive Effort|
|Driver Diameter (in)||56||56|
|Boiler Pressure (psi)||180||180|
|High Pressure Cylinders (dia x stroke) (in)||20" x 26"||20" x 26"|
|Tractive Effort (lbs)||28,414||28,414|
|Factor of Adhesion (Weight on Drivers/Tractive Effort)||5.12||4.58|
|Firebox Area (sq ft)||186||161|
|Grate Area (sq ft)||28.40||28.25|
|Evaporative Heating Surface (sq ft)||2057||2034|
|Superheating Surface (sq ft)|
|Combined Heating Surface (sq ft)||2057||2034|
|Evaporative Heating Surface/Cylinder Volume||217.58||215.15|
|Computations Relating to Power Output (More Information)|
|Robert LeMassena's Power Computation||5112||5085|
|Same as above plus superheater percentage||5112||5085|
|Same as above but substitute firebox area for grate area||33,480||28,980|