SM53
| SM53 | |
|---|---|
 SM53 at Bøler, 1960s. | |
| In service | 1952–1997 |
| Manufacturer | HØKA |
| Family name | Mustang |
| Constructed | 1952-1958 |
| Number built | 50 |
| Number scrapped | 42 |
| Fleet numbers | 204–253 |
| Capacity | 116 |
| Operator |
Sporvognsdivisjonen, AS Oslo Sporveier |
| Specifications | |
| Car body construction | Steel |
| Car length | 14,700 mm (580 in) |
| Width | 2,500 mm (98 in) |
| Doors | Three |
| Maximum speed | 60 km/h (37 mph) |
| Weight | 16.9 tonnes (16.6 long tons; 18.6 short tons) |
| Engine(s) | Hägglund MBL 10 |
| Power output | 180 kW (240 hp) |
| Power supply | Overhead wire |
| Electric system(s) | 600 V |
| Track gauge | 1,435 mm (4 ft 8 1⁄2 in) |
| SM83 | |
|---|---|
 SM83 tram no. 203 and a trailer at the Danish Tramway Museum. | |
| In service | 1985–2000 |
| Manufacturer |
HØKA and Sagene Verksted |
| Family name | Mustang |
| Constructed | 1952-1958 |
| Refurbishment | 1985-1991 |
| Number built | 11 |
| Number scrapped | 7 |
| Fleet numbers | 261–271, later 201-211 |
| Capacity | 102 |
| Operator |
Sporvognsdivisjonen, AS Oslo Sporveier |
| Specifications | |
| Car body construction | Steel |
| Car length | 14,960 mm (589 in) |
| Width | 2,500 mm (98 in) |
| Doors | Three |
| Maximum speed | 60 km/h (37 mph) |
| Weight | 16.9 tonnes (16.6 long tons; 18.6 short tons) |
| Engine(s) | Hägglund MBL 10 |
| Power output | 180 kW (240 hp) |
| Power supply | Overhead wire |
| Electric system(s) | 600 V |
| Track gauge | 1,435 mm (4 ft 8 1⁄2 in) |
The SM53, also called Høka trams after the manufacturer Hønefoss karosserifabrikk, were a tram model which operated for more than 40 years on the Oslo Tramway. A number of these trams were later rebuilt and became known as SM83 trams.
The trams were based on the Swedish Mustang trams, and were delivered with Swedish electronics. The Høka gained a reputation and legacy as very reliable and successful. Between 1982 and 1983, the trams were converted to one man operation. The SM53 trams were retired between 1990 and 1997.[1]
The first batch of 30 Høka trams were built between 1952 and 1953, numbered 204-233. These were originally designated MBO 50. The second batch of 12 trams was built in 1957, designated MBO 55, and numbered 234-245. The final batch, numbered 246-253 was built in 1958, and designated MBO 56. The designations were later revised to SM53/I, SM53/II, and SM53/III respectively.[2] The trams were 14.7 metres long, 2.5 metres wide, and had a weight of 16.9 tons.[3]
Tram nos 215, 234 and 247 are preserved by the Oslo Tramway Museum.[1] Also tram no 249 is preserved by Djurgårdslinjen in Stockholm.
SM83
The project of rebuilding SM53 trams was implemented to extend their life for another 10 to 15 years until all tram services could be operated by articulated trams (such as the SL79). A total of 11 trams were rebuilt, all of them at the tram company's workshop at Sagene.[4]
The rebuilding included a new front, new interior, and updated electronics. The bogies and frames were kept from the original model. The last journey with an SM83 took place February 27, 2000. The SM83 trams were at the end of their service numbered 201 to 211.[5]
Tram no 207 is preserved by the Oslo Tramway Museum. No 201 is preserved in Gothenburg, no 203 at Skjoldnærholm, Denmark and no 210 in Stockholm.
Trailers
Although the SM53 were originally intended to be run with the motor car only, it was soon found that it would be beneficial to run trams with trailers. Attempts to use old two-axled trailers showed them to be unsatisfactory, and a series of thirty bogie-trailers were ordered.[1] These Høka trailers were designated ST55, were built by Strømmens and Hønefoss karosserifabrikk, and were numbered 551 to 580.[6] Between 1984 and 1985, the trailers were rebuilt to make them unmanned. The seat for the conductor was removed, and automatic doors were installed. Trailer number 563 is preserved by the Oslo Tram Museum.[1]
The ST89 trailers were originally built by Hägglunds around 1953 for the Gothenburg tramway, then designated S27. Ten units were sold sold to Oslo round 1985, and were numbered 582 to 591. These trailers were usually pulled by SM83 trams. For the 11th SM83 tram, ST55 trailer no 565, later rebuilt to ST86 standard, was used.[4] Trailer no 586 is preserved by the Oslo Tram Museum.[1] No 589 is preserved in Gothenburg.
See also
- GB Class 3, Trams built by Hønefoss karosserifabrikk for the Gråkall Line in Trondheim.
References
- ↑ 1.0 1.1 1.2 1.3 1.4 "Museumskatalogen, del 3". Oslo Tram Museum. Retrieved 2009-08-20.
- ↑ "Database of SM53/SM83 trams". Norsk jernbaneklubb. Retrieved 2009-08-20.
- ↑ "Månedens bilde, mars 2000" (in Norwegian). Lokaltrafikkhistorisk forening. March 2000. Retrieved 2009-08-20.
- ↑ 4.0 4.1 "Månedens bilde, februar 2000" (in Norwegian). Lokaltrafikkhistorisk forening. February 2000. Retrieved 2009-08-20.
- ↑ "LTF-nytt 1-00" (in Norwegian). Lokaltrafikkhistorisk forening. February 2000. Retrieved 2009-08-20.
- ↑ "Database of bogie trailers (ST55 and ST89)". Norsk jernbaneklubb. Retrieved 2009-08-20.
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