Data from home.t-online.de/home/kopka.manfred/vi.htm. See also the Wikipedia entry at [], last accessed 2 June 2015.
These were express engines delivered by Hartmann (24) and Borsig (9) to the Western Railway between 1860 and 1867. Hartmann added 8 more after the Royal Saxon State Railways was formed in 1870. The class grew as the Saxon State incorporated 6 of the 14 Schwarzkopf locomotives originally delivered to the Berlin-Dresden Railway and 12 Henschel-built engines from the Leipzig-Dresden.
Wikipedia comments that the earlier engines had a square-section steam dome while the Schwarzkopf and Henschel later locomotives were delivered with a Crampton boiler. These engines had slightly bigger grates (1.4 sq m) and evaporative heating surface area (83.9 sq m) as well as greater adhesion and engine weights.
Withdrawals began around the turn of the century and all but a very few were disposed of by 1910.
Data from "Sächsische II (Bauart Staatsbahn)" in Wikipedia [], accessed 15 December 2006; later URL []), last accessed 30 September 2023.
These were six-wheeled, mixed-traffic locomotives (Gemischtzuglokomotiven0 that were delivered to several Saxon railways between 1854 and 1872. Initially, Hartmann delivered engines to the Sächsisch-Bayerische, Niedererzgebirgische Staatsbahn, Sächsisch-B"hmische Staatsbahn, Sächsisch-Schlesische Staatsbahn, Zittau-Reichenberger Eisenbahn, L"bau-Zittauer Eisenbahn, Westliche Staatsbahn, and Östliche Staatsbahn.(Google translation:Saxon-Bavaria State Railway, Lower Erzgebirge State Railway, Bohemian State Railway, Saxon-Silesian State Railway, Zittau-Reichenberg railway, L"bau-Zittau railway, Western State Railway, and Eastern State Railway.)
Some burned low-calorie Braunkohle (brown coal similar to lignite) and needed a spark-arresting stack. Boilers in early locomotives riveted the front tube sheet in the middle of the first boiler course. Apparently this wasn't satisfactory as later examples moved the steam dome forward to just behind the stack. The latter rose out of a conventional smokebox.
Some withdrawals began in the earl 1890s, leaving 75 to be take new numbers. Over the next two decades, the rest of the class left service with the last to go in 1914.
Data from Wikipedia, especially [], last accessed 28 September 2008, supplemented by [], last accessed 14 May 2011.
This pair was among the larger group of generally similar 2-4-0Ts bought by several railways in Saxony over a 21-year period. Among the largest of the series, they also had relatively high-pressure boilers. Indeed, except for the tank-engine layout, the two engines matched up well against any 2-4-0 of the time.
Although given DRG Baureihe numbers in the 98 73 series, the two tanks were retired before the end of 1925.
Principal Dimensions by Steve Llanso of Middle Run Media | |||
---|---|---|---|
Class | B VI, H VI | II | II / BR 98 73 |
Locobase ID | 5053 | 8009 | 9579 |
Railroad | Saechsischen (Saxon) Staats-Eisenbahnen | Saechsischen (Saxon) Staats-Eisenbahnen | Saechsischen (Saxon) Staats-Eisenbahnen |
Country | Germany | Germany | Germany |
Whyte | 2-4-0 | 2-4-0 | 2-4-0T |
Number in Class | 59 | 90 | 2 |
Road Numbers | (1892-601-675) | 98 7311-98 7312 | |
Gauge | Std | Std | Std |
Number Built | 59 | 90 | 2 |
Builder | Hartmann | several | |
Year | 1860 | 1854 | 1874 |
Valve Gear | Stephenson | Stephenson | |
Locomotive Length and Weight | |||
Driver Wheelbase (ft / m) | |||
Engine Wheelbase (ft / m) | 10.81 / 3.29 | ||
Ratio of driving wheelbase to overall engine wheelbase | |||
Overall Wheelbase (engine & tender) (ft / m) | |||
Axle Loading (Maximum Weight per Axle) (lbs / kg) | 23,810 / 10,800 | 23,369 / 10,600 | 27,999 / 12,700 |
Weight on Drivers (lbs / kg) | 47,400 / 21,500 | 47,399 / 21,500 | 55,997 / 25,400 |
Engine Weight (lbs / kg) | 71,650 / 32,500 | 63,714 / 28,900 | 77,162 / 35,000 |
Tender Loaded Weight (lbs / kg) | |||
Total Engine and Tender Weight (lbs / kg) | |||
Tender Water Capacity (gals / ML) | |||
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |||
Minimum weight of rail (calculated) (lb/yd / kg/m) | 40 / 20 | 39 / 19.50 | 47 / 23.50 |
Geometry Relating to Tractive Effort | |||
Driver Diameter (in / mm) | 72.10 / 1831 | 60 / 1525 | 60 / 1524 |
Boiler Pressure (psi / kPa) | 101.50 / 700 | 101.50 / 700 | 127.60 / 880 |
High Pressure Cylinders (dia x stroke) (in / mm) | 16" x 22.05" / 406x560 | 16" x 24" / 406x610 | 17.01" x 22.01" / 432x559 |
Tractive Effort (lbs / kg) | 6755 / 3064.02 | 8835 / 4007.49 | 11,512 / 5221.76 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 7.02 | 5.36 | 4.86 |
Heating Ability | |||
Tubes (number - dia) (in / mm) | |||
Flues (number - dia) (in / mm) | |||
Flue/Tube length (ft / m) | |||
Firebox Area (sq ft / m2) | 75.32 / 7 | ||
Grate Area (sq ft / m2) | 14 / 1.30 | 14 / 1.30 | 16.68 / 1.55 |
Evaporative Heating Surface (sq ft / m2) | 898 / 83.50 | 874 / 81.20 | 1179 / 109.61 |
Superheating Surface (sq ft / m2) | |||
Combined Heating Surface (sq ft / m2) | 898 / 83.50 | 874 / 81.20 | 1179 / 109.61 |
Evaporative Heating Surface/Cylinder Volume | 175.01 | 156.49 | 203.66 |
Computations Relating to Power Output (More Information) | |||
Robert LeMassena's Power Computation | 1421 | 1421 | 2128 |
Same as above plus superheater percentage | 1421 | 1421 | 2128 |
Same as above but substitute firebox area for grate area | 9611 | ||
Power L1 | 3429 | ||
Power MT | 270.00 |