BOB HGe 3/3 21 to 28
| BOB HGe 3/3 21 to 28 | |
|---|---|
 |
|
| Numbering: | 21 to 28 |
| Number: | 8th |
| Manufacturer: | SLM , BBC , MFO |
| Year of construction (s): | 1914 |
| Axis formula : | Cz |
| Gauge : | 1,000 mm |
| Length over buffers: | 8,240 mm |
| Total wheelbase: | 3'500 mm |
| Empty mass: | 35.6 t |
| Top speed: | Adhesion: 40 km / h gear: 15 km / h |
| Hourly output : | 400 hp |
| Driving wheel diameter: | 910 mm |
| Power system : | 1,500 V direct current |
| Power transmission: | Overhead line |
| Operating mode: | Rack system: Riggenbach Towed load: |
| BOB HGe 3/3 29 | |
|---|---|
| Numbering: | 29 |
| Number: | 1 |
| Manufacturer: | SLM, MFO |
| Year of construction (s): | 1926 |
| Axis formula : | Cz |
| Gauge : | 1,000 mm |
| Length over buffers: | 8,240 mm |
| Total wheelbase: | 3'500 mm |
| Empty mass: | 36.5 t |
| Top speed: | Adhesion: 40 km / h gear: 15 km / h |
| Hourly output : | 420 hp |
| Driving wheel diameter: | 910 mm |
| Power system : | 1,500 V direct current |
| Power transmission: | Overhead line |
| Operating mode: | Rack system: Riggenbach Towed load: |
The electric locomotives procured for the electrification in 1914 and 1915 for the mixed gear and adhesion operation of the HGe 3/3 21 to 28 series and the HGe 3/3 29 delivered in 1926 shaped the appearance of the Bernese Oberland Railway (BOB) for years their meter-gauge railway lines between Interlaken and Grindelwald as well as Interlaken and Zweilütschinen .
history
Despite financially difficult circumstances, the Berner Oberland-Bahnen examined the possibility of electrification for their meter- gauge routes from Interlaken via Zweilütschinen to Grindelwald and Lauterbrunnen as well as the Schynige Platte Railway (SPB), which was built with a track width of 800 mm .
Various offers from electrical companies are available in the archives. Among other things, there is a detailed offer from Maschinenfabrik Oerlikon (MFO) with a side contact line to Emil Huber-Stockar , as was used on a trial basis on a section of the Seebach-Wettingen railway line and then on the Locarno-Ponte-Brolla-Bignasco railway (LPB), also known as the Maggia Valley Railway, was used between Ponte Brolla and Bignasco.
This offer included railcars of a similar design to the BCFe 4/4 11 to 15 passenger and baggage railcars delivered to the Martigny-Châtelard-Bahn (MC) in 1906 and 1908, which were fitted with electrical equipment from the Oerlikon machine factory. These railcars had bogies with separate adhesion and gear drives. While one of the electric motors in the bogie drove one axle directly and the other via coupling rods, the other motor acted on the gear wheel on the axle that was driven via the coupling rod.
Ultimately, in coordination with the simultaneous electrification of the 800 mm gauge mountain railway lines of the Wengernalpbahn (WAB), a solution with 1500 volts direct current, classic contact line design and with locomotives of a compact design, which was based on the then by the Rhaetian Railway (RhB) procured Ge 2/4 and the various somewhat larger Ge 4/6 oriented ones.
With the HGe 3/3, the proven concept of the ten existing HG 3/3 steam locomotives with separate adhesion and gear drive was adopted. A powerful electric motor acted on the three axles coupled with rods in the adhesion drive. A second, identical motor served to drive the drive gear. The second gear was not driven and acted as a brake gear. While an electric motor was used in adhesion operation, both motors were connected in series in gear operation. A resistance brake was also built in.
Typical external feature of the meter-gauge HGe 3/3 21 to 28 and HGe 3/3 29 as well as the pure rack railway locomotives He 2/2 1 to 4 (SLM serial numbers 2346 to 2349) acquired at the same time for the Schynige Platte Railway was a massive pantograph with two sharpening pieces set far apart.
The Wengernalpbahn chose its own idiosyncratic pantograph construction with identical catenary, also with widely spaced contact strips, for its locomotives He 2/2 51 to 63 (SLM serial numbers 1948, largely identical to the locomotives of the Schynige Platte Railway) procured a few years earlier. 1953, 1954, 1955, 2086, 2087, 2088, 2089, 2169, 2170, 2236, 2237 and 2238).
These massive pantographs of the locomotives of the Bernese Oberland Railway, like the idiosyncratic design of the locomotives of the Wengernalp Railway, proved their worth and were only replaced with newer designs in the course of time, in some cases with Einholm pantographs .
Although the year of construction 1914 is recognized for locomotives 21 to 28 (SLM serial numbers 2365 to 2372), the first locomotive was already put into operation in 1913. Locomotive 26, the last delivered example, was first shown at the Swiss National Exhibition in Bern and did not enter service until 1915.
After various minor improvements had been made to locomotives 21 to 28, another locomotive, the 29 (SLM serial number 3127), was purchased in 1926 in a design that was improved in further details. From the outside, the newly procured locomotive can be recognized by the fact that the middle front window is visibly higher than the two side front windows.
After the delivery of the electric passenger and luggage railcars ABDeh 4/4 301 to 303 in 1949, the locomotives were pushed into the second tier. With the continuous delivery of additional railcars and the formation of shuttle trains , the locomotives were used less and less because of the low top speed, they were taken out of service piece by piece and then canceled. The two remaining locomotives HGe 3/3 24 and HGe 3/3 29 were last used in 2013 in front of special and service trains .
painting
Initially, all locomotives were used in green color, with the exception of the HGe 3/3 29 that were subsequently delivered, which were given an iron-gray color scheme with black painted cover strips.
Due to the treatment of the color at that time, the green color slowly changed into a somewhat washed-out matt black color. This was also clearly visible in the He 2/2 locomotives of the Wengernalp Railway.
Most, but not all, HGe 3/3 locomotives of the Berner Oberland-Bahnen were painted in a light brown from the 1950s, then later in a darker brown when it was repainted. The chocolate-colored paint is essentially the same as the brown that the passenger cars got after the paint was changed from green to brown and that the HGe 3/3 29 locomotive used today on the Blonay – Chamby (BC) museum railroad has.
Whereabouts
Two of the BOB type HGe 3/3 locomotives are largely in their original condition. While the He 3/3 24, as of 2014 , is located in Zweilütschinen as an exhibition piece looked after by the model railway enthusiast Eiger Zweilütschinen (MEFEZ), the He 3/3 29 has been owned by the Blonay-Chamby museum train since 2013 and has been there since 2014 according to the Adjustments, together with the "Kaiserwagen" of the BOB and the summer car C4 41 of the "Jungfrau Nostalgie Express".
literature
- Hans Häsler: The Berner Oberland Railways, a hundred years of railways to Lauterbrunnen and Grindelwald. Minirex, Lucerne 1990, ISBN 3-907014-04-9 .
- Wolfgang Finke: The vehicles of the Jungfrau Railways 1, Bernese Oberland Railway (BOB), Jungfraubahn (JB), Mürrenbahn (BLM) . A book on DVD, Verlag tram-tv, Cologne 2010, ISBN 978-3-9813669-2-1 .
- Wolfgang Finke: The vehicles of the Jungfrau Railways 2, Wengernalpbahn (WAB), Schynige Platte Railway (BLM), Harderbahn, Allmendhubelbahn, Heimwehfluhbahn . A book on DVD, tram-tv publisher, Cologne 2010, ISBN 978-3-9813669-3-8 .
Web links
Individual evidence
- ↑ Short news section, legend p. 5 in: Prellbock (magazine), No. 6, 2014.