LVD series Ct
| LVD series Ct / Rt | |
|---|---|
| Numbering: | LVD Ct 122-138, Rt 312-331 |
| Number: | 37 |
| Manufacturer: | Chrzanów , Henschel |
| Year of construction (s): | 1934-1940 |
| Retirement: | after 1945 |
| Axis formula : | 1'C1 'h2t |
| Gauge : | 1435 mm / 1524 mm |
| Service mass: | 81.2 t |
| Friction mass: | 50.0 t |
| Wheel set mass : | 17 t |
| Top speed: | 90 km / h |
| Driving wheel diameter: | 1400 mm (Rt), 1720 mm (Ct) |
| Impeller diameter: | 850 mm |
| Control type : | Heusinger |
| Number of cylinders: | 2 |
| Cylinder diameter: | 480 mm |
| Piston stroke: | 630 mm |
| Boiler overpressure: | 15 bar |
| Grate area: | 2.2 m² |
| Superheater area : | 40.1 m² |
| Evaporation heating surface: | 112.3 m² |
| Water supply: | 9.0 m³ |
| Fuel supply: | 3.0 t |
| Brake: | Westinghouse air brake handbrake |
| Particularities: | Locomotives can be re-tracked and designed for changing drive wheel diameters |
The LVD series Ct and Rt were tank locomotives of the Latvian State Railways Latvijas Valsts Dzelzsceļi (LVD) with a 1'C1 'wheel arrangement. The design of these series came from Hanomag . The first three locomotives were built in 1934 by the Polish locomotive factory Pierwsza Fabryka Lokomotyw w Polsce in Chrzanów . The other deliveries that followed until 1940 came from Henschel in Kassel . For the locomotives, a comparatively simple conversion of the track width and drive wheel size was taken into account.
history
The Ct and Rt series are among the few new locomotives procured by LVD in the period between the beginning of Latvian independence in 1918 and the Soviet occupation of Latvia in 1940. Due to the history of the construction of its railway lines and especially the effects of the First World War, the LVD owned lines in a total of five gauges . Apart from the extensive narrow-gauge network in 600, 750 and 1000 mm gauge, most of the network was carried out in Russian broad-gauge of 1524 mm. In addition, there were also lines in the European standard gauge of 1435 mm, especially from Liepāja , Daugavpils and Riga in the direction of Lithuania , over which the connection to Central and Western Europe ran.
In order to flexibly meet the different requirements due to the different gauges, the LVD demanded for the Ct / Rt and Bt / Pt series that were commissioned in 1934 and 1936 that the components of the locomotives should be largely interchangeable. Above all, however, the locomotives were to be designed in such a way that they were suitable from the outset for changing gauges to wheelsets of both gauges, 1435 and 1524 mm. In addition, it should be possible to switch between two different drive wheel diameters with little effort, 1400 and 1720 mm in diameter. The series designations of the LVD have been changed according to the drive wheel size. Ct series locomotives had large and Rt series locomotives had small drive wheels. The track width, on the other hand, could not be taken from the designations, the lowercase letter t only meant that the locomotives could be switched between normal and broad gauge.
The first three locomotives delivered from Chrzanów with the serial numbers 590 to 592 were based on a design by Hanomag and were not yet suitable for these later requirements. Henschel took over the further deliveries and changed the design considerably. On the one hand, there was a standardization with the components of the Bt series, on the other hand, the wishes of LVD for retrofitting were considered constructively. The drive wheel size was changed by repositioning and screwing the steering frame drawbars and return spring guides, the brake hanger bearings and the buffers and draw hooks. For the construction of the chassis, Henschel resorted to the model of the DR series 64 .
The Henschelloks were delivered in several lots from 1936 to 1940. In 1936 the first four locomotives came as the Ct series with the Henschel factory numbers 23085 to 23088. In 1938, 10 locomotives with small wheelsets followed as the Rt series and the serial numbers 23856 to 23865. In 1940 Henschel delivered the last two series, initially ten locomotives as Ct and then ten locomotives as Rt. They received serial numbers 25292 to 25311. In total, the LVD had planned an order for 90 locomotives of the Ct / Rt series in order to subsequently be able to decommission most of the older locomotives with a tender. The Second World War and the Soviet occupation prevented this planning.
However, it is unclear to what extent this constructively possible flexibility has proven itself. Based on the numbering recorded on delivery and at the time the LVD was taken over by the Soviet state railways in 1940, it can be seen that the drive wheels were changed accordingly at least on individual locomotives of the Bt / Pt series, but there is no change for the Ct / Rt series occupied. In addition, there is no information available about the operational performance. It is not known with which gauges most of the locomotives were delivered; only the first three locomotives from Chrzanów are informed that they were delivered in broad gauge. In 1940 the LVD had the following numbers:
- Ct
- 1435 mm: 3 locomotives
- 1524 mm: 14 locomotives
- Rt
- 1435 mm: 1 locomotive
- 1524 mm: 15 locomotives
After the Second World War, three locomotives remained in Germany. The Ct 131 came to the Osthannoverschen Eisenbahn . It was designated there as 75 098 and retired in 1964. The Ct 123 was in the area of the Munich Rbd in 1946 and was scrapped as a foreign locomotive in the Desching main collection point . Another locomotive, the Ct 130, was in the area of the Rbd Dresden in 1946 . There is no precise information about the post-war use of the locomotives that remained in the Baltic States.
Individual evidence
- ↑ Hesselink, Tempel, p. 81
- ↑ Hesselink, Tempel, p. 80
- ^ Hesselink, Tempel, p. 79
- ↑ Vehicle portrait Henschel 25294 on www.bahnbetriebswerk-13.de (accessed on January 29, 2012)
literature
- Herman Gijsbert Hesselink, Norbert Tempel: Railways in the Baltic States , Lok-Report publishing house, Münster 1996, ISBN 3-921980-51-8