|Voith Gravita family|
|Type and origin|
|UIC classification||5B "B"
10BB, 15BB, 20BB "B-B" 
|Gauge||1,435 mm (4 ft 8 1⁄2 in)
|Length||5B ~10 m (32 ft 10 in)
5C ~11 m (36 ft 1 in)
10BB ~15.7 m (51 ft 6 in)
15BB ~16.9 m (55 ft 5 in)
20BB ~18.5 m (60 ft 8 in)
|Locomotive weight||5B 40–45 t (39.4–44.3 long tons; 44.1–49.6 short tons)
5C 60–67.5 t (59.1–66.4 long tons; 66.1–74.4 short tons)
10BB 76–100 t (75–98 long tons; 84–110 short tons)
15BB 80–90 t (79–89 long tons; 88–99 short tons)
20BB 84–88 t (83–87 long tons; 93–97 short tons)
|Fuel type||Diesel fuel|
|Fuel capacity||5B 2,000 L (440 imp gal; 530 US gal)
5C 2,500 L (550 imp gal; 660 US gal)
10BB 3,300 L (730 imp gal; 870 US gal)
15BB 5,000 L (1,100 imp gal; 1,300 US gal)
20BB 6,000 L (1,300 imp gal; 1,600 US gal)
|Prime mover||MTU 4000|
|Maximum speed||5B, 5C 80 km/h (50 mph)
10BB, 15BB 100 km/h (62 mph)
20BB 120 km/h (75 mph)
|Power output||5B 400 kW (540 hp)
5C 700 kW (940 hp)
10BB 1,200 kW (1,600 hp)
15BB 1,800 kW (2,400 hp)
20BB 2,200 kW (3,000 hp)
Maximum tractive effort at μ=0.42:
5B 129–146 kN (29,000–33,000 lbf)
5C 194–219 kN (44,000–49,000 lbf)
10BB 246–337 kN (55,000–76,000 lbf)
15BB 259–291 kN (58,000–65,000 lbf)
20BB 272–285 kN (61,000–64,000 lbf)
The Voith Gravita locomotives are a new family of diesel-hydraulic locomotives built by Voith Turbo Lokomotivtechnik GmbH & Co. KG.. Available in a range of configurations from 4 to 6 axles, they are designed for shunting and light and medium freight operations.
Voith, a well known manufacture of hydraulic transmissions and other locomotive components entered the locomotive building business in 2006 with the launch of the Voith Maxima locomotives at InnoTrans. The Gravita series was launched at the 2008 InnoTrans event. For the production of these locomotives a new plant has been constructed in Kiel, a city already known for locomotive production.
Key features of this series are large fuel tanks, modular construction (allowing interchangeability of some parts between different classes), multi-traction (consisting) with other Voith locomotives, manual or remote operation, and a centrally located air conditioned drivers cabin.
Voith offers 5 variants of this locomotive, ranging from a light shunter to a medium power locomotive. Some technical specifications are presented above (in the 'infobox'), the purpose of use is given below.
- 20BB Designed for regional and cross border traffic
- 15BB Designed for heavy shunting as well as mainline use
- 10BB Shunting and freight - minimalist design for heavy industrial operation
- 5C Heavy shunting and light freight
- 5B Light shunter
Career and orders
On 23 September 2008 it was announced that Deutsche Bahn had placed a €250 million order for 130 of the 10BB variant to be operated by its DB Schenker) subsidiary. The 1000 kW locos will have engines supplied by MTU, and are intended to replace the well known DB Class V 90 (aka DBAG Class 290); the new reporting number for this class of locomotive was 260. vehicles fitted with a diesel particulate filter received the class number 261.
Swiss companies Stahl Gerlafingen and Panlog AG took delivery of their Gravita 10BB locomotives in March 2010. Stahl Gerlafingen operates 2 locos, Panlog AG 3 locos.
The first 3 built locomotives were sold to leasing company Northrail and painted in orange livery in mid-2010. Voith has 5 additional leasing/stock locomotives which are being tested by different rail operators.
- "Voith Gravita product folder" (pdf). Voith Turbo Lokomotivtechnik. August 2010. Retrieved 2011-01-18.
- Voith Turbo adds Gravitas, www.railwaygazette.com (Railway Gazette International), 23 September 2008
- Voith Turbo Becomes Systems Supplier Thanks to Maxima and Gravita
- DB German Railways Orders 130 Diesel Locomotives from Voith, Voith press release, 2008-09-23
- DB announces €250m Voith loco order, Railway Gazette International, 2008-09-23
- Voith Turbo adds Gravitas, Railway Gazette International, 2008-09-23
- "Voith Turbo Presents New Locomotive" (Press release). Voith Turbo. 21 September 2010. Retrieved 21 August 2011.
- "Fahrzeugportrait Voith L04-15001". www.loks-aus-kiel.de (in German). Retrieved 21 August 2011.
- Highlights of the Gravita, Voith
- Maxima locomotive finds a new home, Railway Gazette International, 2007-11-09
- See DB locomotive classification for details of the classification change that took place in 1968
- Tognum receives order for 130 engines for new Voith loco Gravita 10BB, Tognum press release 2008-10-07
- DB RANKS VOITH'S GRAVITA LOCOMOTIVES "OUTSTANDING", www.railwayobserver.com, 4 July 2011
- Locomotives@Ox-traction, www.ox-traction.com (Ox-Traction), archived from the original on 27 September 2008
- Ox-traction (August 2010). "Ox-traction N.V. are ending their business activities.". Retrieved 19 August 2011.
- www.loks-aus-kiel.de. "Voith Gravita" (in German). Retrieved 19 August 2011.
- Eurailpress.de (12 November 2010). "Gravita 10 BB-Fertigung – aktueller Stand" (in German). DVV Media Group GmbH. Retrieved 21 August 2011.
- Eurailpress.de (30 November 2010). "Güterbahnen testen Voith-Loks" (in German). DVV Media Group GmbH. Retrieved 21 August 2011.
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