Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 41, p. 184, 186. Works numbers were 35160-35161 in October 1910 and 37625-37626 in April 1912.
The TP & W bought this quartet of relatively small Consolidations and ordered Belpaire fireboxes. A later order included superheat; see Locobase 13925.
All four were scrapped in April 1937
Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 41, p. 184, 186. Works numbers were 41107-41108 in January 1914.
Essentially the same as the H-1s delivered by Baldwin in the previous couple of years (Locobase 13924), this pair came to the road with superheaters installed. The Improved Belpaire firebox was a notable feature.
While the others were retired before World War II, these remained in service until April 1948.
In February 2006, Locobase put out a call for information on TP & W locomotives on the Classic Trains forum and received diagrams from Ray Breyer, a Peoria-based modeller who had obtained several pages of TP & W diagrams. From the diagram and the accompanying roster, Locobase was able to compile this entry on the most modern TP & W locomotives other than the H-10 Northerns.
Alco delivered two H-8s in October (works #44081) and November (44120) 1907. Almost three years later, 72-73 were produced in May 1910 (works #47698, 47704). The relatively generous firebox heating surface included 31 sq ft of arch tubes.
At the other end of their TP & W careers, the quartet went to Keystone in 1948-49 in the following order:
73 7/14/48
72 3/18/49
70 4/14/49
71 4/19/49
Principal Dimensions by Steve Llanso of Middle Run Media | |||
---|---|---|---|
Class | H-1 | H-2 | H-8/H-9 |
Locobase ID | 13924 | 13925 | 7445 |
Railroad | Toledo, Peoria & Western | Toledo, Peoria & Western | Toledo, Peoria, & Western |
Country | USA | USA | USA |
Whyte | 2-8-0 | 2-8-0 | 2-8-0 |
Number in Class | 4 | 2 | 4 |
Road Numbers | 11-14 | 15-16 | 70-73 |
Gauge | Std | Std | Std |
Number Built | 4 | 2 | 4 |
Builder | Baldwin | Baldwin | Alco-Brooks |
Year | 1910 | 1914 | 1907 |
Valve Gear | Walschaert | Walschaert | Walschaert |
Locomotive Length and Weight | |||
Driver Wheelbase (ft / m) | 15.33 / 4.67 | 15.33 / 4.67 | 17.50 / 5.33 |
Engine Wheelbase (ft / m) | 23.67 / 7.21 | 23.67 / 7.21 | 25.33 / 7.72 |
Ratio of driving wheelbase to overall engine wheelbase | 0.65 | 0.65 | 0.69 |
Overall Wheelbase (engine & tender) (ft / m) | 57.50 / 17.53 | 57.37 / 17.49 | 59 / 17.98 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | |||
Weight on Drivers (lbs / kg) | 151,000 / 68,493 | 163,000 / 73,936 | 208,000 / 94,347 |
Engine Weight (lbs / kg) | 170,000 / 77,111 | 183,000 / 83,008 | 234,500 / 106,368 |
Tender Loaded Weight (lbs / kg) | 130,000 / 58,967 | 130,000 / 58,967 | 150,500 / 68,266 |
Total Engine and Tender Weight (lbs / kg) | 300,000 / 136,078 | 313,000 / 141,975 | 385,000 / 174,634 |
Tender Water Capacity (gals / ML) | 7000 / 26.52 | 7000 / 26.52 | 7500 / 28.41 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 14 / 13 | 14 / 13 | 12 / 11 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 63 / 31.50 | 68 / 34 | 87 / 43.50 |
Geometry Relating to Tractive Effort | |||
Driver Diameter (in / mm) | 57 / 1448 | 57 / 1448 | 63 / 1600 |
Boiler Pressure (psi / kPa) | 200 / 1380 | 190 / 1310 | 200 / 1380 |
High Pressure Cylinders (dia x stroke) (in / mm) | 21" x 28" / 533x711 | 22" x 28" / 559x711 | 23" x 32" / 584x813 |
Tractive Effort (lbs / kg) | 36,827 / 16704.47 | 38,397 / 17416.61 | 45,679 / 20719.67 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.10 | 4.25 | 4.55 |
Heating Ability | |||
Tubes (number - dia) (in / mm) | 268 - 2.25" / 57 | 170 - 2.25" / 57 | 233 - 2" / 51 |
Flues (number - dia) (in / mm) | 32 - 5.25" / 133 | 34 - 5.5" / 140 | |
Flue/Tube length (ft / m) | 14.50 / 4.42 | 13.83 / 4.22 | 15.04 / 4.58 |
Firebox Area (sq ft / m2) | 173.30 / 16.10 | 172 / 15.98 | 261 / 24.26 |
Grate Area (sq ft / m2) | 46.60 / 4.33 | 50.70 / 4.71 | 56.40 / 5.24 |
Evaporative Heating Surface (sq ft / m2) | 2449 / 227.52 | 2182 / 202.71 | 3056 / 284.01 |
Superheating Surface (sq ft / m2) | 507 / 47.10 | 700 / 65.06 | |
Combined Heating Surface (sq ft / m2) | 2449 / 227.52 | 2689 / 249.81 | 3756 / 349.07 |
Evaporative Heating Surface/Cylinder Volume | 218.27 | 177.11 | 198.57 |
Computations Relating to Power Output (More Information) | |||
Robert LeMassena's Power Computation | 9320 | 9633 | 11,280 |
Same as above plus superheater percentage | 9320 | 11,463 | 13,423 |
Same as above but substitute firebox area for grate area | 34,660 | 38,889 | 62,118 |
Power L1 | 5614 | 11,142 | 14,547 |
Power MT | 327.86 | 602.79 | 616.74 |