Librairie polytechnique, Baudry et Cie, p 380 and Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 18, p. 137.Additional data from 1907 Catalogue of Mechanical Engineering Collection in the Science Division of the Victoria & Albert Museum (Board of Education South Kensington)., pp 92. Baldwin works numbers were 12433 in January 1892; 12672, 12676, 12679-12680 in May; 13370 in April 1893; 13408-09, 13411-13413 in May.
In its catalogue of exhibits for the 1893 Exhibition, Baldwin made "special mention" of the suppliers of materials and appliances to this design:
Boiler and fire-box steel Wellman Iron and Steel Co., Thurlow, Pa.
Tubes Reading Iron Co., Reading, Pa.
Tires Standard Steel Works, Philadelphia, Pa.
Wrought-iron wheels (Vauclain pattern) Standard Steel Works, Philadelphia, Pa.
Metallic packing United States Metallic Packing Co., Philadelphia, Pa.
Sight feed-lubricator Detroit Lubricator Co., Detroit, Mich.
Injectors William Sellers & Co., Incorporated, Philadelphia, Pa.
Driving brake American Brake Co., St. Louis, Mo.
Tender and train brake . . Westinghouse Air Brake Co., Pittsburgh, Pa.
Tender-coupler The Hazleton New Universal Interlocking Coupler Co.,
As unusual as the adoption of the Bicycle wheel arrangement was in the US, production of ten Bicycles with the four-cylinder Vauclain compound layout in a camelback profile was rarer still. They didn't persist in this arrangement for long.
One (682) was rebuilt as an Atlantic in May 1899, the others as N-4a camelback Moguls in 1904; see Locobase 12664.
|Specifications by Steve Llanso of Sweat House Media|
|Railroad||Philadelphia & Reading|
|Number in Class||10|
|Road Numbers||618-622, 679-684 / 301-309|
|Builder||Burnham, Williams & Co|
|Locomotive Length and Weight|
|Driver Wheelbase (ft)||7.50|
|Engine Wheelbase (ft)||23.25|
|Ratio of driving wheelbase to overall engine wheebase||0.32|
|Overall Wheelbase (engine & tender) (ft)|
|Axle Loading (Maximum Weight per Axle) (lbs)|
|Weight on Drivers (lbs)||84,023|
|Engine Weight (lbs)||131,748|
|Tender Loaded Weight (lbs)||92,000|
|Total Engine and Tender Weight (lbs)||223,748|
|Tender Water Capacity (gals)||4755|
|Tender Fuel Capacity (oil/coal) (gals/tons)||5.50|
|Minimum weight of rail (calculated) (lb/yd)||70|
|Geometry Relating to Tractive Effort|
|Driver Diameter (in)||78|
|Boiler Pressure (psi)||180|
|High Pressure Cylinders (dia x stroke) (in)||13" x 26"|
|Low Pressure Cylinders (dia x stroke) (in)||22" x 26"|
|Tractive Effort (lbs)||12,777|
|Factor of Adhesion (Weight on Drivers/Tractive Effort)||6.58|
|Firebox Area (sq ft)||173.46|
|Grate Area (sq ft)||76|
|Evaporative Heating Surface (sq ft)||1435|
|Superheating Surface (sq ft)|
|Combined Heating Surface (sq ft)||1435|
|Evaporative Heating Surface/Cylinder Volume||359.27|
|Computations Relating to Power Output (More Information)|
|Robert LeMassena's Power Computation||13,680|
|Same as above plus superheater percentage||13,680|
|Same as above but substitute firebox area for grate area||31,223|