MOB BFZe 4/4 23–26
| BFZe 4/4 / AFZe 4/4 / ADZe 4/4 / BDe 4/4 / De 4/4 | |
|---|---|
 De 4/4 number 25 or 26 in Zweisimmen (last state)
|
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| Numbering: | 23-26 |
| Number: | 4th |
| Manufacturer: | SIG, Alioth |
| Year of construction (s): | 1912 |
| Retirement: | 1969-1994 |
| Axis formula : | Bo'Bo ' |
| Gauge : | 1000 mm ( meter gauge ) |
| Length over buffers: | 14,500 mm |
| Length: | 13,500 (car body) |
| Service mass: | 33.5 t |
| Friction mass: | 33.5 t |
| Wheel set mass : | 8.5 t |
| Top speed: | 50 km / h |
| Hourly output : | 456 hp (336 kW) |
| Driving wheel diameter: | 900 mm |
| Power system : | 750 later 850 volts direct current |
| Power transmission: | Pantograph |
| Number of traction motors: | 4th |
| Seats: | 12 (+9) |
| Classes : | 2nd class (from 1956 1st class) |
| Loading area: | 7 m² (luggage) 6 m² (post) |
The BFZe 4/4 numbers 23-26 are electric meter-gauge railcars . They were procured in 1912 by the Montreux – Berner Oberland Railway (MOB). They were manufactured by the Swiss Industrial Association (SIG) with electrical equipment from the Alioth electricity company .
history
The MOB needed a suitable vehicle for the express trains introduced between Montreux and Zweisimmen in 1910, as the BCFe 4/4 7-20 often had to drive in double traction. For this reason, she ordered these four railcars. Because they should only be used in high-quality traffic, they only have a 2nd class compartment and the normal 3rd class was missing. There is also a luggage compartment and a mail compartment . After the 1st and 2nd class were merged in 1956, the 2nd class compartment became the 1st class compartment, and thus the AFZe 4/4. It was not until 1968/71 that it was declassified and converted into a second class compartment, at the same time the post compartment was also abolished, the new designation is BDe 4/4. Railcar No. 23, which had an accident in the La Tine Tunnel in 1969, did not experience this redrawing. In 1979 the passenger compartment was abolished on the last railcars number 25 and 26 and the vehicles ran as De 4/4. Railcar number 24 was converted into the Xe 4/4 24 in 1970, but had an accident in 1980. Railcar number 25 was demolished in 1988. Railcar number 26 was handed over to the Obersimmental-Saanenland model railway group in 1994, which set it up as a club bar at Sannen station.
Technical
The vehicles have a sheet metal box that rests on a riveted steel frame. The power is transmitted via a closed pawl bearing drive with two-part elastic gears. The DC motor has four poles and is self-ventilated. The gear ratio was 1: 6.29 on delivery. With 700 volts on the motor terminal, the motors on the shaft developed an hourly output of 456 hp (336 kW). The motors are controlled directly via the drive switch. The full contact line voltage is also applied to the motor terminals, depending on the speed level. They have ten driving and five braking levels. An electrical resistance brake was built in from the start. A Hardy type vacuum brake is installed as a railcar and train brake , which acts on all four wheels. In addition, a manual spindle brake is available as a hand or parking brake on every driver's cab. The vehicle is operated standing. The top speed for the MOB is 50 km / h for the first time ex works. Each of the driving wheels measuring 900 mm has its own motor.
The 2nd class compartment has 12 seats, in the luggage compartment there are 9 emergency seats that were assigned to 3rd class when required. The luggage compartment is 7 m² and the mail compartment 6 m². Access to the passenger compartment is via a closed platform directly behind the driver's cab and is designed as an open-plan compartment. Access to the other driver's cab is via a platform behind the driver's cab that is only accessible from one side. Both driver's cabs have a front wall door. The mail and luggage compartment has an internal sliding door on both long sides. A toilet is installed between the passenger and luggage compartments.
Modifications, redrawings
In 1926 all vehicles were equipped with a safety control for one-man operation.
Around 1943/44 both Lyra bars were replaced by pantographs. At the same time repainting in blue-cream instead of the original pearl-gray-cream.
In 1956 it was changed to AFZe 4/4 as a result of class adjustment, and in 1962 the luggage compartment designation was changed from F to D and thus changed to ADZe 4/4.
In 1968, railcar number 24 was declassified and the mail compartment abolished and renamed BDe 4/4 24. This railcar was converted into the Xe 4/4 24 in 1970. The converted car body received an oxide red paint. After it collided with a passenger train at Rossinière in 1980, it was canceled.
The railcars number 25 and 26 were declassified in 1971 and the post compartment abolished and redrawn as BDe 4/4. In 1979 the passenger compartment was abolished and the vehicles were renamed De 4/4.
Operational
As planned when the order was placed, the main area of operation was initially the express trains between Montreux and Zweisimmen. Only the commissioning of the CFe 4/4 3001-3004 from 1944 brought a change. And these railcars were withdrawn from the express trains. With the appearance of more modern rolling stock, the vehicles were increasingly pushed into the freight transport sector.
Between 1931 and 1935, railcar number 24 was used as a towing vehicle for the "Golden Mountain Pullmann Express" trains. For this time he also had the right coat of paint in dark blue cream.
Whereabouts
Railcar number 23 was scrapped and demolished as ADZe 4/4 23 in the same year after it collided with fallen stones in La Tine Tunnel in 1969.
The railcar number 24, as the Xe 4/4 24, collided with a passenger train at Rossinière on September 30, 1980. As a result, it was scrapped and canceled.
The railcar number 25 was decommissioned in 1988 as De 4/4 25 and demolished.
Motor car number 26 was handed over to the Obersimmental-Saanenland model railway group in 1994. It cannot be driven and serves as a club bar at Saanen train station.
literature
- Patrick Belloncle, Jürgen Ehrbar, Tibert Keller; The big book of the MOB Montreux – Berner Oberland-Bahn / Le grand livre du MOB Montreux – Oberland bernois. Edition Viafer, Kerzers 2009, ISBN 3-9522494-2-4 , pages 237-239.
- 75 years of MOB. official MOB anniversary book, self-published in 1976, page 109