LM-68
| LM-68 | |
|---|---|
 LM-68 museum railcar No. 6249 in Saint Petersburg
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| Number: | 663 |
| Manufacturer: | WARS ( Russian ВАРЗ ) |
| Year of construction (s): | 1968-1975 |
| Retirement: | 1979-1993 |
| Axis formula : | Bo'Bo ' |
| Gauge : | 1,524 mm |
| Length over buffers: | 15,300 |
| Length: | 15,000 mm |
| Height: | 3,150 mm |
| Width: | 2,550 mm |
| Trunnion Distance: | 7,500 mm |
| Bogie axle base: | 1,940 mm |
| Empty mass: | 19 t |
| Top speed: | 65 km / h |
| Hourly output : | 180 kW |
| Wheel diameter: | 700 mm |
| Motor type: | DK-259 |
| Power system : | 600 V = |
| Power transmission: | Overhead line, scissor pantograph |
| Number of traction motors: | 4th |
| Brake: | Resistance brake, rail brake, direct-acting compressed air brake |
| Control: | Contactor control |
| Operating mode: | Unidirectional locomotive |
| Seats: | 35 |
| Standing room: | 160 (8 passengers per m²) |
LM-68 ( Russian ЛМ-68 ) is the name of a tram vehicle built by the Wagonoremontny Sawod in Leningrad (WARS, today Peterburgski Tramwajno-Mechanitscheski Sawod, Saint Petersburg , Russia ) . The abbreviation LM means L eningradski M otorny ( Russian Ленинградский Моторный , German Leningrad railcars), the number 68 corresponds to the development of 1968. All of the cars of this type were way vehicles .
construction
From a technical point of view, the LM-68 was a Soviet version of the American PCC- like tram vehicles . It has two identical frameless bogies with only a single suspension stage as the original PCC cars, but unlike them, it was equipped with a self-developed indirect control instead of an accelerator. The LM-68 could run as a solo multiple unit or in traction , so there was no sidecar variant of this. The vehicles of the “sixty-eight” series ( LM-68 and LM-68M ) also ran with trailers, however, older LP-49 sidecars were used for this purpose .
commitment
WARS manufactured the LM-68 prototype in 1968, after experience with a single LM-67 test car and with the small series of LWS-66 articulated cars. The angular appearance of the LM-68 was borrowed from the LWS-66 . But its load-bearing car body with large side windows was not stable enough and as early as 1973 the new reinforced design without a roof window was developed. This was called LM-68M and completely replaced the LM-68 in series production from 1975 . Overall, the WARS 663 LM-68 built from 1968 to 1975. The LM-68 tram vehicles drove in Leningrad, Tashkent , Gorki , Arkhangelsk , Cherepovets , Saratov , Magnitogorsk , Nizhny Tagil and Temirtau from 1968 to 1993. As a result of its large side and The LM-68 was nicknamed the “Aquarium” roof window .
In the late 1970s and early 1980s, the management of the Soviet public transport company took the vehicles out of service as too unreliable. The discarded wagons were almost all scrapped; only one LM-68 has been preserved as a museum exhibit to this day. The roadworthy LM-68 is exhibited in the St. Petersburg Tram Museum.
literature
- М. Я. Резник, Б. М. Кулаков "Трамвайный вагон ЛМ-68", М .: Транспорт, 1977 г.
(Russian and in Cyrillic script; German roughly: M. Ja. Resnik, BM Kulakow Das tram LM-68.Transport , Moscow, 1977.)
