[] (viewed 18 July 2003). One of two compound 0-8-0 classes that the BDZ imported at the turn of the century.
Only the 254 still ran in 1936, when the BDZ numbered it 25.002
[] (viewed 18 July 2003). Tube diameters are inner dimension. One of two compound 0-8-0 classes that the BDZ imported at the turn of the century.
The data show that these were smaller engines than the Vulkan engines imported a few years earlier. by 1936, only 255 & 256 were left and they were redesignated 25.003-.004.
[] (viewed 18 July 2003).
Tube diameters are inner dimension. Part of a large class of cross-compound 0-8-0s with the LP cylinder on the right-hand side, these first 8 had the most heating surface area. By 1936, 3 had been retired or lost in service or in war. The remainder were numbered 26.001-26.005.
Data from [] (viewed 18 July 2003). See also "Bulgarian Railway Locomotives," Railway Engineer, Volume 33, No. 12 (December 1912), pp. 386-388. Maffei delivered the first six in 1904, Sigl of Vienna contributed the next ten in 1906, and Hanomag supplied the last eight in 1908.
Tube diameters are inner dimension.
Part of a large class of cross-compound 0-8-0s with the LP cylinder on the right-hand side, this group had a smaller boiler with fewer, larger diameter firetubes and the same grate as the earlier 320s. The RE report noted a small appliance fixed to the smokebox high on the right side. It was a non-automatic starting valve used to supply live steam to the LP cylinder when the locomotive was just getting under way.
By 1936, when BDZ undertook a system-wide renumbering, the 24 had been reduced to 14 and these were numbered 26.06 to 26.19.
Data from [] (viewed 18 July 2003). See also L Renewal, "The Railways of Bulgaria", Cassier's Engineering Monthly, Volume 52, No 1 (July 1917), pp. 13-24 , esp Table of Principal Dimensions, p. 15. See also "Bulgarian State Railways", Railway Engineer. Volume 33, No 12 (December 1912)), pp. 385-389
Tube diameters are inner dimension.
Part of a large class of cross-compound 0-8-0s with the LP cylinder on the right-hand side, this last group had a slightly deeper firebox and a larger tender.
By 1936, when BDZ undertook a system-wide renumbering, almost all of these Henschels were still in service. The 19 survivors were renumbered 26.20 to .38.
[] (viewed 18 July 2003). [
] (viewed 18 July 2003). This class included the name locomotive and Macedonia, Balkan, Musala, Buzludza, & Shipka. They were later renumbered 208-213. Trifonov's photo shows the 3rd-axle drive and the externally mounted eccentrics.
All but one had been scrapped by 1936, when the BDZ's renumbering awarded Macedonia the number 25.01.
Principal Dimensions by Steve Llanso of Middle Run Media | |||||
---|---|---|---|---|---|
Class | 251/25.02 | 255 | 320/26.01 | 328/26.06 | 352/26.20 |
Locobase ID | 5653 | 5654 | 5655 | 5656 | 5657 |
Railroad | Bulgarian State | Bulgarian State | Bulgarian State | Bulgarian State | Bulgarian State |
Country | Bulgaria | Bulgaria | Bulgaria | Bulgaria | Bulgaria |
Whyte | 0-8-0 | 0-8-0 | 0-8-0 | 0-8-0 | 0-8-0 |
Number in Class | 4 | 5 | 8 | 24 | 21 |
Road Numbers | 64-67/251-254 | 255-259 | 320-327 | 328-351 | 352-372 |
Gauge | Std | Std | Std | Std | Std |
Number Built | 4 | 5 | 8 | 24 | 21 |
Builder | Vulkan | Hanomag | Hannover | several | Henschel & Sohn |
Year | 1899 | 1905 | 1901 | 1904 | 1908 |
Valve Gear | Allan | Allan | Allan | Allan | Allan |
Locomotive Length and Weight | |||||
Driver Wheelbase (ft / m) | 14.76 / 4.50 | 14.76 / 4.50 | 13.12 / 4 | 13.12 / 4 | 13.12 / 4 |
Engine Wheelbase (ft / m) | 14.76 / 4.50 | 14.76 / 4.50 | 13.12 / 4 | 13.12 / 4 | 13.12 / 4 |
Ratio of driving wheelbase to overall engine wheelbase | 1 | 1 | 1 | 1 | 1 |
Overall Wheelbase (engine & tender) (ft / m) | 39.70 / 12.10 | 38.68 / 11.79 | 38.16 / 11.63 | 38.01 / 11.59 | 37.94 / 11.56 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | 29,299 / 13,290 | 29,762 / 13,500 | 31,085 / 14,100 | 31,085 / 14,100 | 31,085 / 14,100 |
Weight on Drivers (lbs / kg) | 117,154 / 53,140 | 119,049 / 54,000 | 124,341 / 56,400 | 124,341 / 56,400 | 124,341 / 56,400 |
Engine Weight (lbs / kg) | 117,154 / 53,140 | 119,049 / 54,000 | 124,341 / 56,400 | 124,341 / 56,400 | 124,341 / 56,400 |
Tender Loaded Weight (lbs / kg) | 63,691 / 28,890 | 72,091 / 32,700 | 65,036 / 29,500 | 69,556 / 31,550 | 72,312 / 32,800 |
Total Engine and Tender Weight (lbs / kg) | 180,845 / 82,030 | 191,140 / 86,700 | 189,377 / 85,900 | 193,897 / 87,950 | 196,653 / 89,200 |
Tender Water Capacity (gals / ML) | 2587 / 9.80 | 3168 / 12 | 2587 / 9.80 | 2640 / 10 | 3168 / 12 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 6.60 / 6 | 5.50 / 5 | 6.60 / 6 | 7.70 / 7 | 5.50 / 5 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 49 / 24.50 | 50 / 25 | 52 / 26 | 52 / 26 | 52 / 26 |
Geometry Relating to Tractive Effort | |||||
Driver Diameter (in / mm) | 49.20 / 1250 | 49.20 / 1250 | 49.20 / 1250 | 49.20 / 1250 | 49.20 / 1250 |
Boiler Pressure (psi / kPa) | 174 / 1200 | 174 / 1200 | 174 / 1200 | 171.10 / 1180 | 174 / 1200 |
High Pressure Cylinders (dia x stroke) (in / mm) | 20.87" x 24.8" / 530x630 (1) | 20.87" x 24.8" / 530x630 (1) | 21.65" x 24.8" / 550x630 (1) | 21.65" x 24.8" / 550x630 (1) | 21.65" x 24.8" / 550x630 (1) |
Low Pressure Cylinders (dia x stroke) (in / mm) | 29.53" x 24.8" / 750x630 (1) | 29.53" x 24.8" / 750x630 (1) | 30.71" x 24.8" / 780x630 (1) | 30.71" x 24.8" / 780x630 (1) | 30.71" x 24.8" / 780x630 (1) |
Tractive Effort (lbs / kg) | 21,655 / 9822.55 | 21,655 / 9822.55 | 23,343 / 10588.22 | 22,954 / 10411.77 | 23,343 / 10588.22 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.41 | 5.50 | 5.33 | 5.42 | 5.33 |
Heating Ability | |||||
Tubes (number - dia) (in / mm) | 290 - 1.772" / 45 | 224 - 1.77" / 50 | 304 - 1.57" / 45 | 238 - 2.047" / 52 | 238 - 1.85" / 52 |
Flues (number - dia) (in / mm) | |||||
Flue/Tube length (ft / m) | 13.45 / 4.10 | 13.45 / 4.10 | 15.42 / 4.70 | ||
Firebox Area (sq ft / m2) | 113.20 / 10.52 | 110.83 / 10.30 | 120.73 / 11.22 | 120.77 / 11.22 | 127.72 / 11.87 |
Grate Area (sq ft / m2) | 24.21 / 2.25 | 24.21 / 2.25 | 26.58 / 2.47 | 26.59 / 2.47 | 26.58 / 2.47 |
Evaporative Heating Surface (sq ft / m2) | 1721 / 159.92 | 1496 / 139 | 1823 / 169.47 | 1690 / 157 | 1696 / 157.65 |
Superheating Surface (sq ft / m2) | |||||
Combined Heating Surface (sq ft / m2) | 1721 / 159.92 | 1496 / 139 | 1823 / 169.47 | 1690 / 157 | 1696 / 157.65 |
Evaporative Heating Surface/Cylinder Volume | 350.54 | 304.71 | 345.04 | 319.87 | 321.01 |
Computations Relating to Power Output (More Information) | |||||
Robert LeMassena's Power Computation | 4213 | 4213 | 4625 | 4550 | 4625 |
Same as above plus superheater percentage | 4213 | 4213 | 4625 | 4550 | 4625 |
Same as above but substitute firebox area for grate area | 19,697 | 19,284 | 21,007 | 20,664 | 22,223 |
Power L1 | 3320 | 2976 | 3257 | 3027 | 3133 |
Power MT | 249.90 | 220.45 | 230.99 | 214.68 | 222.20 |
Principal Dimensions by Steve Llanso of Middle Run Media | |
---|---|
Class | Bulgaria/25.01 |
Locobase ID | 5652 |
Railroad | Bulgarian State |
Country | Bulgaria |
Whyte | 0-8-0 |
Number in Class | 6 |
Road Numbers | 58-63/208-213 |
Gauge | Std |
Number Built | 6 |
Builder | Hannover |
Year | 1891 |
Valve Gear | Stephenson |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 13.12 / 4 |
Engine Wheelbase (ft / m) | 13.12 / 4 |
Ratio of driving wheelbase to overall engine wheelbase | 1 |
Overall Wheelbase (engine & tender) (ft / m) | 37.27 / 11.36 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | 29,740 / 13,490 |
Weight on Drivers (lbs / kg) | 118,983 / 53,970 |
Engine Weight (lbs / kg) | 118,983 / 53,970 |
Tender Loaded Weight (lbs / kg) | 71,430 / 32,400 |
Total Engine and Tender Weight (lbs / kg) | 190,413 / 86,370 |
Tender Water Capacity (gals / ML) | 2772 / 10.50 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 6.60 / 6 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 50 / 25 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 49.20 / 1250 |
Boiler Pressure (psi / kPa) | 174 / 1200 |
High Pressure Cylinders (dia x stroke) (in / mm) | 20.08" x 23.62" / 510x600 |
Tractive Effort (lbs / kg) | 28,629 / 12985.91 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.16 |
Heating Ability | |
Tubes (number - dia) (in / mm) | 283 - 1.57" / 45 |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | 15.42 / 4.70 |
Firebox Area (sq ft / m2) | 123.74 / 11.50 |
Grate Area (sq ft / m2) | 26.58 / 2.47 |
Evaporative Heating Surface (sq ft / m2) | 1921 / 178.50 |
Superheating Surface (sq ft / m2) | |
Combined Heating Surface (sq ft / m2) | 1921 / 178.50 |
Evaporative Heating Surface/Cylinder Volume | 221.89 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 4625 |
Same as above plus superheater percentage | 4625 |
Same as above but substitute firebox area for grate area | 21,531 |
Power L1 | 4186 |
Power MT | 310.25 |