The Grand Duchy of Mecklenburg Friedrich-Franz Railway grouped the various

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 ...

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 Company The Mecklenburg Railway Company (german: Mecklenburgische Eisenbahngesellschaft) was founded in 1845 to build a railway line from Hagenow to Rostock and to Güstrow, now in the German state of Mecklenburg-Vorpommern. It was nationalised in 1873 and ...

(''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 A boiler is a closed vessel in which fluid (generally water) is heated. The fluid does not necessarily boil. The heated or vaporized fluid exits the boiler for use in various processes or heating applications, including water heating, central h ...

and was retired in 1900. During a visit to the workshop the

driving axle On a steam locomotive, a driving wheel is a powered wheel which is driven by the locomotive's pistons (or turbine, in the case of a steam turbine locomotive). On a conventional, non-articulated locomotive, the driving wheels are all coupled tog ...

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 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–

Rostock Rostock (), officially the Hanseatic and University City of Rostock (german: link=no, Hanse- und Universitätsstadt Rostock), is the largest city in the German state of Mecklenburg-Vorpommern and lies in the Mecklenburgian part of the state, c ...

line and occasionally hauled mixed trains.

Design features

The locomotives had an inside forked

frame A frame is often a structural system that supports other components of a physical construction and/or steel frame that limits the construction's extent. Frame and FRAME may also refer to: Physical objects In building construction *Framing (con ...

(''Gabelrahmen''). The boiler barrel comprised two (and on ''HULDA'' three), shells. The

steam dome The steam dome is a vessel fitted to the top of the boiler of a steam engine. 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. This arrangement acts as a ...

was located on the centre one, and on ''HULDA'' on the front shell. On ''HULDA'' the

firebox Firebox may refer to: *Firebox (steam engine), the area where the fuel is burned in a steam engine *Firebox (architecture), the part of a fireplace where fuel is combusted *Firebox Records, a Finnish 8101705801record label * Firebox.com, an electro ...

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 A cylinder (from ) has traditionally been a three-dimensional solid, one of the most basic of curvilinear geometric shapes. In elementary geometry, it is considered a prism with a circle as its base. A cylinder may also be defined as an infin ...

wet steam engine was located on the outside horizontally. The Stephenson valve gear was inside. On the ''SCHWAAN'' and the ''NEBEL'' the cylinders were angled and attached to the smokebox, the valve gear was external as well. ''HULDA'' had a screw reversing gear. The suspension on the driving wheels was achieved by leaf springs 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.

Sources

* {{Mecklenburg locomotives 2-2-2 locomotives 01 Standard gauge locomotives of Germany Railway locomotives introduced in 1848 1A1 n2 locomotives Passenger locomotives Wöhlert locomotives Borsig locomotives Hanomag locomotives

History

Design features

See also

Sources