Mecklenburg I
Encyclopedia
| Mecklenburg I | ||||
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| Nummbering: | 1 | 3 | 4 | 5 |
| Numbering up to 1895: | 42 | 45, 46 | 55, 56 | 57 |
| Name: | MARSCHALL VORWÄRTS | SCHWAAN, NEBEL | HERTHA, FREYA | HULDA |
| Manufacturer: | Wöhlert | Borsig | Egestorff Hanomag Hanomag was a German producer of steam locomotives, tractors, trucks and military vehicles. Hanomag first achieved international fame by delivering a large number of steam locomotives to Romania and Bulgaria before World War I.... |
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| Years of Manufacture: | 1848 | 1850 | 1860 | 1863 |
| Retired: | 1900 | 1898, 1890 | 1894, 1899 | 1901 |
| Wheel arrangement Whyte notation The Whyte notation for classifying steam locomotives by wheel arrangement was devised by Frederick Methvan Whyte and came into use in the early twentieth century encouraged by an editorial in American Engineer and Railroad Journal... : |
2-2-2 2-2-2 Under the Whyte notation for the classification of steam locomotives, 2-2-2 represents the wheel arrangement of two leading wheels on one axle two powered driving wheels on one axle, and two trailing wheels on one axle. The wheel arrangement both provided more stability and enabled a larger firebox... |
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| Axle arrangement UIC classification The UIC classification of locomotive axle arrangements describes the wheel arrangement of locomotives, multiple units and trams. It is set out in the International Union of Railways "Leaflet 650 - Standard designation of axle arrangement on locomotives and multiple-unit sets". It is used in much... : |
1A1n2 | |||
| Rail gauge Rail gauge Track gauge or rail gauge is the distance between the inner sides of the heads of the two load bearing rails that make up a single railway line. Sixty percent of the world's railways use a standard gauge of . Wider gauges are called broad gauge; smaller gauges, narrow gauge. Break-of-gauge refers... : |
1435 mm | |||
| Length over buffers Buffer (rail transport) A buffer is a part of the buffers-and-chain coupling system used on the railway systems of many countries, among them most of those in Europe, for attaching railway vehicles to one another.... : |
≈ 12,500 mm | |||
| Empty weight: | 22.10 t | 20.40 t | 20.40 t | 23.65 t |
| Service weight: | 24.15 t | 21.62 t | 20.99 t | 25.97 t |
| Adhesive weight: | 11.90 t | 10.85 t | 11.20 t | 12.75 t |
| Coupled wheel diameter: | 1618 mm | 1535 mm | 1535 mm | 1700 mm |
| Carrying wheel diameter: | 1070 mm | 1015 mm | 1015 mm | 1142 mm |
| Valve gear Valve gear The valve gear of a steam engine is the mechanism that operates the inlet and exhaust valves to admit steam into the cylinder and allow exhaust steam to escape, respectively, at the correct points in the cycle... : |
Stephenson Stephenson valve gear The Stephenson valve gear or Stephenson link or shifting link is a simple design of valve gear that was widely used throughout the world for all kinds of steam engine. It is named after Robert Stephenson but was actually invented by his employees.... |
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| No. of cylinders: | 2 | |||
| Cylinder bore: | 343 mm | 330 mm | 330 mm | 356 mm |
| Piston stroke: | 508 mm | |||
| Boiler Boiler A boiler is a closed vessel in which water or other fluid is heated. The heated or vaporized fluid exits the boiler for use in various processes or heating applications.-Materials:... overpressure Overpressure The term Overpressure is applied to a pressure difference, relative to a "normal" or "ambient" pressure, in various circumstances:* In engineering: the pressure difference over the wall thickness of a pressure vessel... : |
7,89 bar | 6,58 bar | 6,58 bar | 7,31 bar |
| No. of heating tubes: | 136 | 123 | 119 | 154 |
| Heating tube length: | 3331 mm | 3000 mm | 3325 mm, 3330 mm | 3280 mm |
| Grate area: | 1.15 m2 | 1.09 m2 | 0.80 m2, 0.82 m2 | 1.13 m2 |
| Radiative heating area: | 5.81 m2 | 5.88 m2 | 4.32 m2, 4.49 m2 | 5.92 m2 |
| Heating tube area: | 56.66 m2 | 48.71 m2 | 50.96 m2, 50.89 m2 | 68.19 m2 |
| Evaporative heating area: | 62.47 m2 | 54.59 m2 | 55.28 m2, 55.38 m2 | 74.11 m2 |
The Grand Duchy of Mecklenburg Friedrich-Franz Railway
Grand Duchy of Mecklenburg Friedrich-Franz Railway
The Grand Duchy of Mecklenburg Friedrich-Franz Railway was the state railway company in Mecklenburg-Schwerin and Mecklenburg-Strelitz...
grouped the various 2-2-2
2-2-2
Under the Whyte notation for the classification of steam locomotives, 2-2-2 represents the wheel arrangement of two leading wheels on one axle two powered driving wheels on one axle, and two trailing wheels on one axle. The wheel arrangement both provided more stability and enabled a larger firebox...
steam locomotives procured between 1848 and 1863 into its Mecklenburg Class I.
History
The MARSCHALL VORWÄRTS was delivered in 1848 by the Berlin locomotive works, Lokomotivfabrik F. Wöhlert, with factory number 1 and was given the running number 4 by the Mecklenburg Railway CompanyMecklenburg Railway Company
The Mecklenburg Railway Company was founded in 1845 to build a railway line from Hagenow to Rostock and to Güstrow, now in the German state of Mecklenburg-Vorpommern...
(Mecklenburgische Eisenbahngesellschaft). On its nationalisation, the locomotive was renumbered to 42 and, on the introduction of a new numbering plan in 1895, to number 1. In 1866 the locomotive was given a new boiler
Boiler
A boiler is a closed vessel in which water or other fluid is heated. The heated or vaporized fluid exits the boiler for use in various processes or heating applications.-Materials:...
and was retired in 1900. During a visit to the workshop the driving axle was incorrectly fitted by mistake, with the result that the locomotive ran backwards through the wall of the shed during the ensuing test run.
The locomotives SCHWAAN and NEBEL were delivered in 1850 by Borsig and given railway numbers 9 and 10. On nationalisation they were renumbered to 45 and 46. NEBEL was retired in 1890, whilst SCHWAAN continued in service until 1898 and from 1895 carried the number 3.
HERTHA and FREYA were also delivered by Borsig - in 1860 - and allocated numbers 23 and 24. They were renumbered to 55 and 56 on nationalisation and, subsequently, to 4 and 5 in 1895. The engines were retired in 1894 and 1899.
In 1863 Egestorff
Hanomag
Hanomag was a German producer of steam locomotives, tractors, trucks and military vehicles. Hanomag first achieved international fame by delivering a large number of steam locomotives to Romania and Bulgaria before World War I....
supplied no. 25, HULDA. The engine was allocated number 57 after nationalisations and number 5 in 1895. In 1901 she was retired.
The performance of these locomotives was sufficient for level routes. They were mainly placed in charge of passenger trains on the Hagenow
Hagenow
Hagenow is a German town in the southwest of Mecklenburg-Western Pomerania, in the district of Ludwigslust-Parchim, 30 kilometers south of Schwerin...
–Rostock
Rostock
Rostock -Early history:In the 11th century Polabian Slavs founded a settlement at the Warnow river called Roztoc ; the name Rostock is derived from that designation. The Danish king Valdemar I set the town aflame in 1161.Afterwards the place was settled by German traders...
line and occasionally hauled mixed trains.
Design features
The locomotives had an inside forked frameLocomotive frame
A locomotive frame is the structure that forms the backbone of the railway locomotive, giving it strength and supporting the superstructure elements such as a cab, boiler or bodywork. The vast majority of locomotives have had a frame structure of some kind...
(Gabelrahmen). The boiler barrel comprised two (and on HULDA three), shells. The steam dome
Steam dome
A Steam dome is a vessel fitted to the top of the boiler of a steam locomotive. It contains the opening to the main steam pipe and its purpose is to allow this opening to be kept well above the water level in the boiler...
was located on the centre one, and on HULDA on the front shell.
On HULDA the firebox extended under the trailing axle by means of a sloping base in order to achieve the greatest possible grate area. Apart from MARSCHALL VORWÄRTS which had a conical chimney, all the engines had long cylindrical smokestacks.
The two-cylinder wet steam engine was located on the outside horizontally. The Stephenson valve gear
Stephenson valve gear
The Stephenson valve gear or Stephenson link or shifting link is a simple design of valve gear that was widely used throughout the world for all kinds of steam engine. It is named after Robert Stephenson but was actually invented by his employees....
was inside. On the SCHWAAN and the NEBEL the cylinders were angled and attached to the smokebox
Smokebox
A smokebox is one of the major basic parts of a Steam locomotive exhaust system. Smoke and hot gases pass from the firebox through tubes where they pass heat to the surrounding water in the boiler. The smoke then enters the smokebox, and is exhausted to the atmosphere through the chimney .To assist...
, the valve gear was external as well. HULDA had a screw reversing gear.
The suspension on the driving wheels was achieved by leaf spring
Leaf spring
Originally called laminated or carriage spring, a leaf spring is a simple form of spring, commonly used for the suspension in wheeled vehicles...
s underneath and was linked to the leaf springs of the leading wheels using a compensating lever. HULDA had a transverse leaf spring under the trailing axle, this axle was unsprung on the other engines.
The locomotives were coupled to four-wheeled tenders which had a water capacity of 4.45 m3 and 3 t coal tank.
See also
- Grand Duchy of Mecklenburg Friedrich-Franz RailwayGrand Duchy of Mecklenburg Friedrich-Franz RailwayThe Grand Duchy of Mecklenburg Friedrich-Franz Railway was the state railway company in Mecklenburg-Schwerin and Mecklenburg-Strelitz...
- List of Mecklenburg locomotives
External links
- There is a relevant English-language forum at Railways of Germany