NSB type 25
| NSB type 25 | |
|---|---|
.jpg) 25c 383, Baldwin about 1960 in Trondheim
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| Numbering: | 197-200, 223, 227, 228, 238-240, 259-263, 292, 293, 306, 307, 325-327, 336-340, 344, 381-383, 420-425, 485-489 |
| Number: | 42 |
| Manufacturer: |
Hamar Jernstøberi : 1909: 25a: 197–200 1911: 25a: 223, 227, 228 1913: 25a 259–263 1914: 25a 292, 293 1917: 25a 306, 307 1919: 25a 325–327 Baldwin Locomotive Works : 1917: 25b 336–340, 344 1919: 25c 381–383 Thunes mekaniske Verksted : 1912: 25a 238–240, Norsk Maskin Industri : 1922: 25d 420–425 Swiss Locomotive and Machine Factory : 1901: 25e 485–489 |
| Year of construction (s): | 1901, 1909, 1911-1914, 1917, 1919, 1922 |
| Type : | 25a-25c, 25e: CT n2 25d: CT h2 |
| Gauge : | 1435 mm ( standard gauge ) |
| Length over buffers: | 8,670 mm |
| Height: | 3,670 mm |
| Total wheelbase: | 3,120 mm |
| Empty mass: | 25a: 25.9 t 25b: 24.7 t 25c: 25 t 25d: 27.8 t 25e: 25.2 t |
| Service mass: | 25a: 35 t 25b: 33.5 t 25c: 34 t 25d: 36.2 t 25e: 33.2 t |
| Friction mass: | 25a: 35 t 25b: 33.5 t 25c: 34 t 25d: 36.2 t 25e: 33.2 t |
| Top speed: | 40/40 km / h |
| Driving wheel diameter: | 1,060 mm |
| Number of cylinders: | 2 |
| Cylinder diameter: | 360 mm |
| Piston stroke: | 500 mm |
| Boiler overpressure: | 12 kgf / cm 2 |
| Grate area: | 1.17 m 2 |
| Tubular heating surface: | 25a: 58 m 2 25b: 55 m 2 25c: 55.6 m 2 25d: 47 m 2 25e: 63.1 m 2 |
| Superheater area : | 25d: 22 m 2 |
| Water supply: | 25a-25c: 5.3 m 3 25d: 4.6 m 3 25e: 4.2 m 3 |
| Fuel supply: | 1.2 t |
The Norwegian steam locomotive series NSB Type 25 was built between 1909 and 1922 by Thunes mekaniske in Oslo , Baldwin Locomotive Works in Eddystone (Pennsylvania) , Hamar Jernstøberi in Hamar and Norsk Maskin Industri (NMI) in Oslo in four different series for Norges Statsbaner . Another five locomotives were procured from Switzerland in 1947.
The series was intended primarily for shunting at NSB .
history
The original 37 locomotives of the type were built between 1909 and 1922. Technically, they were related to the NSB Type 23 . But they were lighter and could therefore be used on far more routes than the relatively heavy Type 23 . They also had a lot in common with the NHJ F series from Norsk Hoved-Jernbane , which was named NSB Type 43 by the NSB in 1926 . These three machines, built in Switzerland between 1899 and 1901, were the actual forefathers of the Type 25 .
The individual series differed little from one another.
NSB type 25a
Hamar Jernstøberi and Thunes mekaniske Verksted shared the first order for the wet steam locomotives, which were given the class designation 25a . The construction of the 22 locomotives stretched between 1909 and 1919.
NSB type 25b
Baldwin Locomotive Works had already received an order for six locomotives in 1916 . The more than a ton lighter machines than the 25a series also had a smaller heating surface and were given the designation 25b .
NSB type 25c
In 1919 Baldwin Locomotive Works received another order for three locomotives. In terms of their weight and heating surface, they were between series 25a and 25b and were given the series designation 25c .
NSB type 25d
The last series of six locomotives built was ordered from Norsk Maskin Industri in 1921 and delivered in 1922. In contrast to the three previous series, these were designed as hot steam locomotives with superheaters. They were classified in the 25d series .
NSB type 25e
In 1947 the NSB bought five similar locomotives from Switzerland , which came from a series built in 1901 for the Jura-Simplon Railway and taken over by the Swiss Federal Railways in 1903 under the designation E 3/3 and which were sorted into the sub-series 25e at the NSB .
With a total of 42 locomotives, the Type 25 was one of the series in Norway with the most examples and was only surpassed by the NSB Type 30 and NSB Type 63a .
commitment
The type 25 locomotives had a top speed of 40 km / h. They were mainly used in the shunting service and were used in the handover service. There are also pictures on which they are in use in passenger train service.
The locomotives 25d 422, 424 and 425 were converted for use on the Flåmsbana for a short period in the 1940s . For this they were equipped with separate brakes. The boiler was installed in an inclined position, as the gradient was 55 per thousand over almost the entire route.
25b 336 and 344 were awarded to the Rjukanbanen and the Eidanger saltpeterfabrikker from 1918 to 1954 and from 1917 to 1929, respectively.
Retirement and whereabouts
The locomotives were parked and scrapped between 1958 and 1970. The last locomotive was the 25a 227 , which was retired on November 9, 1970. However, it had been parked cold a long time beforehand in the railway depot in Hamar . Today it belongs to the Norsk Jernbane Museum .
photos
25a 227 in Hamar
25a 227 in the Norsk Jernbane Museum in Hamar
Web links
- Database over rullende jernbanematerialiell brukt i Norge. Retrieved November 8, 2013 (Norwegian).
- Locomotive types on jernbane.net. Retrieved December 23, 2013 (Norwegian).
- Picture of the 25d 420 on the Havnebanen in Oslo. Retrieved January 8, 2014 .
Individual evidence
- ↑ Svein Sando: Tekniske spesifikasjoner for normalsporte damplok NSB. Retrieved January 8, 2014 (Norwegian).
- ↑ Database over rullende jernbanematerialiell brukt i Norge. Norsk Jerbaneklubb, accessed November 8, 2013 (Norwegian).