Deutz OMZ 122 Meterspur is a German meter-gauge diesel-mechanical locomotive built in 1937 and 1941 by Deutz AG. They are the narrow-gauge variant of the Deutz OMZ 122 R locomotive, which was built in large numbers. Two specimens are known to be preserved.
Description
After the widely produced OMZ 122 R locomotive, Deutz had a range of models to produce locomotives with this type of engine for track gauges from to There are 62 known examples of the OMZ 122 F type. Two locomotives were manufactured; one locomotive was delivered to the Langeoog Island Railway in 1937, and the second locomotive was delivered, along with another locomotive, to the Naval Port Construction Office in Helgoland.Website about the OMZ 122 F locomotives from KHD on rangierdiesel.de
The IL Kö 2 spent its entire operational life with the Langeoog Island Railway. The locomotive underwent some modifications there, for example, the line of sight for the driver was improved by additional front windows. In 1982, the locomotive was withdrawn from service. It was plinthed as a monument in front of Langeoog station.Website about the OMZ 122 F locomotive of the Langeoog Island Railway on rangierdiesel.de
The second locomotive was put into service with the additional locomotive from 1941 by the Helgoland Naval Port Construction Office. In 1943, they were transferred to the island of Wangerooge.
After the Second World War, one locomotive came to the Water and Shipping Office in Wangerooge in March 1948 and was scrapped around 1965. The other initially went to the municipality of Wangerooge and from there in 1947 to the Spiekeroog Island Railway. The locomotive was intended to replace the horse-drawn carriages of the island railway with motorized transport. On 1 June 1949, the locomotive pulled its first train. To transport the then still short trains, consisting of up to three horse-drawn cars and a maximum of one freight car, the 40 hp power was sufficient.
When the horse-drawn carriages were replaced by meter-gauge railway cars, the locomotive was equipped with platforms with railings to improve the line of sight for the driver. The width of the locomotive changed to . In 1965, the locomotive was replaced by IS No. 6 locomotive.Website about the OMZ 122 F locomotive of the Spiekeroog Island Railway on rangierdiesel.de
In 1969, it initially came to the German Railway Society. The restoration for museum operations did not materialize.Photo of the former locomotive 2 of the Spiekeroog Island Railway at the DEV Therefore, in 2000, the locomotive was placed in front of the station building in Harlesiel as a memorial to the military railway on Wangerooge.
Design features The locomotives were constructed slightly narrower and shorter than the standard gauge locomotives. An initially visible difference was the equipment of the cab with only a single central round front window. There was also a difference in the running gear, as the meter-gauge locomotives used spoked wheels with cutouts.
The Deutz OMZ 122 engine is a water-cooled two-cylinder, two-stroke diesel engine with inline cylinders, which drives a mechanical transmission with a reversing gearbox via a clutch. The drive axle is powered from the transmission output through a chain,Website about the locomotives at lokhersteller.de while the other axle is driven via coupling rods. This design allowed for space savings and also increases running smoothness compared to vehicles with a jackshaft.
The suspension on the locomotives was designed with leaf springs, which were arranged above the axles. The coupling of the cars was carried out with a so-called triangle coupling; the locomotives did not have an air brake for train braking. The sanding system was implemented in the form of a drop, and a sand drop pipe was present between the wheels.
References
External links Website about the vehicles of the Spiekeroog Island Railway with a mention of No. 2 Website about the vehicles of the Langeoog island railway with mention of No. Kö 2 Website about former DEV vehicles with mention of the former locomotive 2 of the Spiekeroog Island Railway Website about the narrow-gauge railway on Langeoog with mention of the OMZ 122
Further reading
Autorenkollektiv: In alter Frische – Die Fahrzeuge der Ersten Museums-Eisenbahn Deutschlands, Deutscher Eisenbahn-Verein, Bruchhausen-Vilsen 1986