Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 13, p. 207. Works numbers were 7942, 7945 in May 1886; 8514, 8519 in April 1887; 8941 in December; 9152 in March 1888; 9542-9543 in October; 10039 in June 1889; 10647, 10661 in February 1890; , 11412 in December; 11525 in January 1891; 11637 in February.
This was a big order for a 70-mile short line in Pennsylvania, so it's likely the locomotives were the face of the H&BTM for the next decade or so. 10 was sold in 1902 to the Winfield Railroad. 7 & 8 were sold in June 1910 to Philadelphia's H S Kerbaugh engineering company, 9 and 11 to the Juniata & Southern in July 1911, and 18 went to the Pittsburgh & Susquehanna in 1915.Data from Price Howell, Comparative Statistics of the Australasian Railways, Journal of the Royal Statistical Society, March 1899, pp. 94-95 and from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 18, p. 148. Works numbers were 13177 and 13183 in January 1893.
Locobase is presented with a quandary. The dimensions shown in the Degolyer archive of Baldwin specs are identical to those given by Price Howell to describe the 18 Consolidations sold to the New South Wales Railway in 1891. Upon research into the earlier spec page, he finds that the numbers were indeed identical in every respect. It's hard to tell whether these were extras, but it appears not to be so. The original order in Volume 16 is for the 18 engines that were delivered; 2 other compounds also deliverd to the NSWR are accounted for both in the specs and in Locobase 12064. In any case, this North American pair of cousins had the Belpaire fireboxes found in the Oz engines. Both apparently remained on the H & BT for their entire careers.Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 19, p. 205. Works number was 14230 in February 1895.
This Consolidation had a few more boiler tubes than the1893 pair shown in Locobase 12063Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 24, p. 295 and Volume 26, p. 23. Works numbers were 20694 in July 1902, 22713 in August 1903, and 34691-34692 in May 1910.
This western Pennsylvania coal road was based in Saxton and operated independently up until its abandonment in 1954. Its latest Consolidations were by far its biggest and most powerful design. Note that the latter two were ordered 7 years after the first pair.
Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 65, pp. 156; and Baldwin negative 7949 archived at [], last accessed 22 June 2019. Works numbers were 54696-54697 in March 1921.
Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Vol 80, pp. 596+. See also The Rail City Museum website's "Huntingdon & Broad Top Mountain Railroad" at [] . Works numbers were 59945-59946 in April 1927.
Principal Dimensions by Steve Llanso of Sweat House Media | |||||
---|---|---|---|---|---|
Class | 20 | 22 | 26 | 28 | 33 |
Locobase ID | 11868 | 12063 | 12140 | 11560 | 14686 |
Railroad | Huntingdon & Broad Top Mountain | Huntingdon & Broad Top Mountain | Huntingdon & Broad Top Mountain | Huntingdon & Broad Top Mountain | Huntingdon & Broad Top Mountain |
Country | USA | USA | USA | USA | USA |
Whyte | 2-8-0 | 2-8-0 | 2-8-0 | 2-8-0 | 2-8-0 |
Number in Class | 14 | 18 | 1 | 4 | 2 |
Road Numbers | 7-20 | 22-23 | 26 | 28-29, 31-32 | 33-34 |
Gauge | Std | Std | Std | Std | Std |
Number Built | 14 | 18 | 1 | 4 | 2 |
Builder | Burnham, Williams & Co | Burnham, Williams & Co | Burnham, Williams & Co | Burnham, Williams & Co | Baldwin |
Year | 1886 | 1893 | 1894 | 1902 | 1921 |
Valve Gear | Stephenson | Stephenson | Stephenson | Stephenson | Walschaert |
Locomotive Length and Weight | |||||
Driver Wheelbase (ft / m) | 14 / 4.27 | 14.25 / 4.34 | 14.25 / 4.34 | 14.67 / 4.47 | 14.67 / 4.47 |
Engine Wheelbase (ft / m) | 21.50 / 6.55 | 22.33 / 6.81 | 22.33 / 6.81 | 23.42 / 7.14 | 23.67 / 7.21 |
Ratio of driving wheelbase to overall engine wheelbase | 0.65 | 0.64 | 0.64 | 0.63 | 0.62 |
Overall Wheelbase (engine & tender) (ft / m) | 48.25 / 14.71 | 55.02 / 16.77 | |||
Axle Loading (Maximum Weight per Axle) (lbs / kg) | |||||
Weight on Drivers (lbs / kg) | 100,000 / 45,359 | 122,000 / 55,338 | 126,000 / 57,153 | 161,820 / 73,400 | 170,100 / 77,156 |
Engine Weight (lbs / kg) | 116,000 / 52,617 | 140,280 / 63,630 | 142,000 / 64,410 | 182,850 / 82,939 | 190,700 / 86,500 |
Tender Loaded Weight (lbs / kg) | 100,000 / 45,359 | 124,000 / 56,246 | |||
Total Engine and Tender Weight (lbs / kg) | 282,850 / 128,298 | 314,700 / 142,746 | |||
Tender Water Capacity (gals / ML) | 3000 / 11.36 | 3000 / 11.36 | 3500 / 13.26 | 5000 / 18.94 | 6000 / 22.73 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 10 / 9 | ||||
Minimum weight of rail (calculated) (lb/yd / kg/m) | 42 / 21 | 51 / 25.50 | 53 / 26.50 | 67 / 33.50 | 71 / 35.50 |
Geometry Relating to Tractive Effort | |||||
Driver Diameter (in / mm) | 50 / 1270 | 51 / 1295 | 50 / 1270 | 51 / 1295 | 51 / 1295 |
Boiler Pressure (psi / kPa) | 130 / 9 | 160 / 11 | 160 / 11 | 180 / 12.40 | 190 / 13.10 |
High Pressure Cylinders (dia x stroke) (in / mm) | 20" x 24" / 508x610 | 21" x 26" / 533x660 | 21" x 26" / 533x660 | 22" x 28" / 559x711 | 22" x 28" / 559x711 |
Tractive Effort (lbs / kg) | 21,216 / 9623.43 | 30,576 / 13869.06 | 31,188 / 14146.66 | 40,656 / 18441.27 | 42,915 / 19465.94 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.71 | 3.99 | 4.04 | 3.98 | 3.96 |
Heating Ability | |||||
Tubes (number - dia) (in / mm) | 196 - 2.25" / 57 | 231 - 2.25" / 57 | 237 - 2.25" / 57 | 347 - 2" / 51 | 204 - 2" / 51 |
Flues (number - dia) (in / mm) | 34 - 5.375" / 137 | ||||
Flue/Tube length (ft / m) | 13.08 / 3.99 | 13.37 / 4.08 | 13.37 / 4.08 | 14.50 / 4.42 | 13.25 / 4.04 |
Firebox Area (sq ft / m2) | 146 / 13.57 | 158 / 14.68 | 166 / 15.43 | 172.50 / 16.03 | 200 / 18.58 |
Grate Area (sq ft / m2) | 30.70 / 2.85 | 32 / 2.97 | 33.40 / 3.10 | 46.75 / 4.34 | 46.75 / 4.34 |
Evaporative Heating Surface (sq ft / m2) | 1659 / 154.18 | 1967 / 182.81 | 2022 / 187.92 | 2786 / 258.92 | 2237 / 207.82 |
Superheating Surface (sq ft / m2) | 503 / 46.73 | ||||
Combined Heating Surface (sq ft / m2) | 1659 / 154.18 | 1967 / 182.81 | 2022 / 187.92 | 2786 / 258.92 | 2740 / 254.55 |
Evaporative Heating Surface/Cylinder Volume | 190.03 | 188.77 | 194.05 | 226.14 | 181.57 |
Computations Relating to Power Output (More Information) | |||||
Robert LeMassena's Power Computation | 3991 | 5120 | 5344 | 8415 | 8883 |
Same as above plus superheater percentage | 3991 | 5120 | 5344 | 8415 | 10,481 |
Same as above but substitute firebox area for grate area | 18,980 | 25,280 | 26,560 | 31,050 | 44,840 |
Power L1 | 2965 | 3598 | 3649 | 4531 | 10,178 |
Power MT | 261.47 | 260.07 | 255.39 | 246.92 | 527.66 |
Principal Dimensions by Steve Llanso of Sweat House Media | |
---|---|
Class | 37 |
Locobase ID | 14688 |
Railroad | Huntingdon & Broad Top Mountain |
Country | USA |
Whyte | 2-8-0 |
Number in Class | 2 |
Road Numbers | 37-38 |
Gauge | Std |
Number Built | 2 |
Builder | Baldwin |
Year | 1927 |
Valve Gear | Walschaert |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 15.25 / 4.65 |
Engine Wheelbase (ft / m) | 23.33 / 7.11 |
Ratio of driving wheelbase to overall engine wheelbase | 0.65 |
Overall Wheelbase (engine & tender) (ft / m) | 55 / 16.76 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
Weight on Drivers (lbs / kg) | 140,000 / 63,503 |
Engine Weight (lbs / kg) | 157,000 / 71,214 |
Tender Loaded Weight (lbs / kg) | 125,000 / 56,699 |
Total Engine and Tender Weight (lbs / kg) | 282,000 / 127,913 |
Tender Water Capacity (gals / ML) | 6000 / 22.73 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 10 / 9 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 58 / 29 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 51 / 1295 |
Boiler Pressure (psi / kPa) | 190 / 13.10 |
High Pressure Cylinders (dia x stroke) (in / mm) | 21" x 26" / 533x660 |
Tractive Effort (lbs / kg) | 36,309 / 16469.50 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.86 |
Heating Ability | |
Tubes (number - dia) (in / mm) | 152 - 2" / 51 |
Flues (number - dia) (in / mm) | 24 - 5.375" / 137 |
Flue/Tube length (ft / m) | 14.50 / 4.42 |
Firebox Area (sq ft / m2) | 129 / 11.98 |
Grate Area (sq ft / m2) | 35.10 / 3.26 |
Evaporative Heating Surface (sq ft / m2) | 1763 / 163.79 |
Superheating Surface (sq ft / m2) | 397 / 36.88 |
Combined Heating Surface (sq ft / m2) | 2160 / 200.67 |
Evaporative Heating Surface/Cylinder Volume | 169.19 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 6669 |
Same as above plus superheater percentage | 7869 |
Same as above but substitute firebox area for grate area | 28,922 |
Power L1 | 9270 |
Power MT | 583.91 |