SAAS Be 4/4

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Be 4/4
Old electric locomotive Be 4-4 No. BT-15 in Wattwil.jpg
BT Be 4/4 15 in Wattwil in September 2010
First owner,
numbering:		 BT 11-16 EB 101–104
BTB 105, 106
SMB 107, 108
  (from 1963: 171, 172)
EBT 109, 110
  (from 1963: 107, 108)
Number: 6th 10
Manufacturer: SAAS (electrical part, drive), SLM (mech. Part)
Construction year:

 1931/32

 1932/33
EBT 109: 1944
EBT 110: 1953
Axis formula : B 0 'B 0 '
Length over buffers: 12,000 mm 12,400 mm
Total wheelbase: 8,740 mm 8,900 mm
Service mass: 66 t 64.7 t
Top speed: 80 km / h
Hourly output : 1199 kW (1630 hp ) 1177 kW (1600 hp )
Starting tractive effort: 137 kN 118 kN
Hourly traction: 78 kN at 55 km / h 85 kN at 50 km / h
Driving wheel diameter: 1040 mm 1060 mm
Number of traction motors: 4th
Transmission ratio: 1: 4.2 1: 4.533

The Be 4/4 is a four-axle electric bogie locomotive with Einzelachsantrieb the first time at the Bodensee-Toggenburg-Bahn (BT) and then to the Emmental-Burgdorf-Thun Railway (EBT), also known as EBT group called, and mitbetriebene of it Lanes was delivered.

procurement

Locomotive Be 4/4 15 in Wattwil

On the occasion of its electrification , the Bodensee-Toggenburg-Bahn (BT) acquired six Be 4/4 locomotives and two BCFe 2/4 railcars in 1930 . The railcars were related to the Be 4/4 in the electrical part and had the same drive motors.

The locomotives were ordered from Ateliers de Sécheron (SAAS) in Geneva, which built the electrical part and supplied its spring drive . The mechanical part came from the Swiss Locomotive and Machine Factory in Winterthur. The Be 4/4 was designed on the model of the BBÖ 1170 and BBÖ 1170.1 , with which Austria had already had good experiences.

A short time afterwards, the Emmental Railway (EB) and Solothurn-Münster Railway (SMB) were electrified, and the Burgdorf-Thun Railway (BTB) switched its operation from three-phase to 16⅔ Hz single-phase alternating current . In this context, the three railway companies acquired eight Be 4/4 locomotives and twelve CFe 2/4 railcars in 1932/33 . The locomotives essentially corresponded to the BT machines. The railcars had half the power of a Be 4/4, as only one bogie was motorized. However, the essential parts of the electrical equipment matched those of the Be 4/4.

The Emmental – Burgdorf – Thun-Bahn (EBT), created from the merger of EB and BTB, was very satisfied with the Be 4/4 and ordered one machine each in 1944 and 1953. The second replica received a main compressed air switch instead of the main oil switch .

construction

Wheel with Sécheron spring drive .

The Be 4/4 was built according to a very modern concept for the time. They were the first standard-gauge bogie locomotives with single-axle drive in Switzerland. The locomotive without running axles with the B 0 'B 0 ' wheel arrangement has two bogies. Each wheel set is individually driven by a Sécheron hollow shaft spring drive , a further development of the Westinghouse spring drive . The four traction motors are completely housed in the two bogies.

The electrical equipment was designed for a trip from Romanshorn to Rapperswil and back with a trailer load of 250 tons. The locomotives with hopper control have an hourly output of around 1200 kW (1600 hp ). With a service weight of 66 tons and a top speed of 80 km / h, they are well suited for branch lines with a light superstructure .

Operation, conversions and renaming

Driver's cab of the BT Be 4-4 No. 15
Be 4/4 No. 15 of the Bodensee-Toggenburg-Bahn , today owned by the Zürcher Oberland Steam Railway Association , with old SBB passenger cars in Bauma station .
Historic composition of the EBT with a Be 4/4 locomotive No. 102, on the way between Grosshöchstetten and Konolfingen

At the Bodensee-Toggenburg Railway

The locomotives were used in passenger and freight traffic and from 1944 in express trains on the so-called direct line . When electrical operations began on the Südostbahn (SOB), BT helped out with two Be 4/4 and one BCFe 2/4 because the vehicles ordered were not yet available.

For use on the 50 ‰ ramps of the SOB, the Be 4/4 were retrofitted with a recuperation brake from 1945 to 1947 . At the same time, automatic train protection and a new safety control were installed. From 1952 the bogies were reinforced and a driver's cab was set up for seated operation.

Although the top speed of 80 km / h on the Wattwil – Rapperswil section was barely sufficient, the Be 4/4 still proved their worth in all types of trains , including on SBB and SOB lines. In 1966 it was decided to rewire the locomotives, set up the second driver's cab for seated operation and install multiple controls . This enabled the Be 4/4 to replace a BDe 2/4 multiple unit during revisions . After the high-performance railcars had been delivered, operations focused on the St. Gallen and Toggenburg regions .

With the new acquisition of the RBDe 4/4 sub-multiple units and the Re 4/4 91-96 , the locomotives with their characteristic platforms became redundant, but they performed shunting service for years and were called in for special services.

At the EBT group

In 1942 the Be 4/4 101-106 came through the aforementioned merger to form the Emmental – Burgdorf – Thun Railway (EBT). In 1963 SMB locomotives were given the numbers 171 and 172, while the Be 4/4 109 and 110 delivered later were given the numbers 107 and 108.

It is worth mentioning the regular deployment - sometimes in double traction - in front of freight trains on the Basel - Bern route in 1963.

From 1967, the main oil switches were replaced by main compressed air switches. From 1965 to 1972 the locomotives were equipped with multiple controls that allowed double traction with a second Be 4/4 or later with a De 4/4 . Until the end of their regular operating hours in 2000, they were used in front of freight trains, often as a replacement for a missing Re 4/4 III .

With the merger of EBT, SMB and United Huttwil-Bahnen (VHB), the locomotives were transferred to Regionalverkehr Mittelland (RM) in 1997 , where they were scrapped in 2000.

Whereabouts

In 1988 BT sold several Be 4/4s. Machine no. 13 was acquired from the Sihl Valley-Zurich-Uetliberg-Bahn (SZU) and used there as the Be 4/4 49 in freight train service. In 1994 it was bought by the Zürcher Oberland Steam Railway Association (DVZO), which in 1988 had already taken over No. 15 from BT. It was initially intended as a replacement locomotive, later as a spare parts donor. In 2009 the locomotive was handed over to the Eurovapor locomotive depot Sulgen . The machine, which has been repainted , is to be exhibited in the Locorama Romanshorn .

Oswald-Steam bought locomotive No. 14 in Saturdayern , where they were painted brown and provided with yellow decorative lines. When the business went out of business, it came into the possession of the merged SOB, which it sold to Eurovapor in 2006.

Be 4/4 SLM no. owner TSI number VKM Location Status comment
BT 11 3509 Schorno Locomotive Management (SLM GmbH) 91 85 4 416 011-5 CH-SLM Winterthur operational Sold by SOB to SLM in 2017
BT 12 3510 Private citizen Le Locle scrapped with Swisstrain until 2014
BT 13 3511 Eurovapor Lokremise Sulgen Sulgen Exhibit
BT 14 3512 Eurovapor Lokremise Sulgen 91 85 4 416 014-9 CH-EV Romanshorn operational brown paint
BT 15 3513 Zurich Oberland Steam Railway Association (DVZO) 91 85 4 416 015-6 CH-DVZO Bauma inoperable shut down since 2018
BT 16 3514 BT scrapped Canceled in 1997
EBT 101 3551 TR Trans Rail AG 91 85 4 416 101-4 CH-TR 3551 scrapped March 2019 canceled
EBT 102 3552 BLS Foundation 91 85 4 416 102-2 CH-VHE Burgdorf operational Commercial loan from the Emmental Historic Railway Association
EBT 104 3554 TR Trans Rail AG 91 85 4 416 104-8 CH-TR (Biasca, August 19, 2019) inoperable
EBT 105 3555 Railway adventure world Horb am Neckar (Germany) Exhibit
SMB 171 3557 Association Swisstrain 91 85 4416 171-7 CH-SWTR (Payerne, August 11, 2018) inoperable

Individual evidence

  1. ↑ Erik Schneider: Transfer of the DVZO Be 4/4 No. 13. Bahnonline.ch, April 1, 2009, accessed on October 19, 2018 .
  2. ^ Electric locomotive Be 4/4 14 - history ( memento of March 4, 2016 in the Internet Archive ), accessed on April 24, 2015
  3. ↑ Swiss Railway Review , Issue 11/2002, ISSN  1022-7113 , p. 496.
  4. ↑ Bahnforum Schweiz (bahnforum.ch, access for registered users only)> Prototype> nostalgic railway> Swisstrain October 29, 2019
  5. ↑ Horb Railway Adventure World
  6. ↑ Notre Be 4/4 171 , website of the Swisstrain Association , accessed on March 29, 2016
  7. ↑ Photo by Markus Eigenheer

literature

  • Heinz Sigrist: BLS Ae 6/8 and other private railway Sécherons. Edition Lan, Bäretswil 2014, ISBN 978-3-906691-80-0
  • Gerhard Oswald: The Bodensee-Toggenburg Railway. Appenzeller Verlag, Herisau 2004, ISBN 3-85882-361-9 .
  • Hans Waldburger: 75 years of the Bodensee-Toggenburg and Rickenbahn. In: Swiss Railway Review. Issue 4/1985, ISSN  1022-7113 , p. 114.
  • Peter Willen: Locomotives in Switzerland, standard gauge traction units. Orell Füssli Verlag, Zurich 1972.
  • Werner Weber, Werner Hardmeier: Regional traffic Mittelland. Volume 1: Emmental Railway, Burgdorf – Thun Railway. Volume 305, Prellbock Druck & Verlag, Leissigen 2000, ISBN 3-907579-20-8
  • Werner Weber, Werner Hardmeier, Jürg Aeschlimann: Regional traffic Mittelland. Volume 2: Emmental – Burgdorf – Thun Railway. Volume 306, Prellbock Druck & Verlag, Leissigen 2002, ISBN 3-907579-23-2
  • Christian R Frauenkecht: Electric locomotive Be 4/4 of the BT and EBT. Papyrus & Ink publishing house, Gachnang and Brugg, ISBN 978-3-033-04930-7

Web links

Commons : BT Be 4/4 11–16  - Collection of images, videos and audio files