Key takeaways
- The G 800 BB is the entry point to the classic Kiel BB family – smaller and lighter than the G 1000 BB or G 1206.
- G stands for “Getriebe” (transmission): power is transmitted hydraulically, not diesel-electrically.
- BB denotes the wheel arrangement B'B', i.e. two two-axle bogies.
- Its typical territory is works railways, sidings and short trip workings.
- Keeper, livery and duties change frequently – only the vehicle number remains reliable.
Contents
Fact file
| Vehicle type | Diesel-hydraulic locomotive for shunting, works and trip-working duties |
|---|---|
| Manufacturer | Vossloh Locomotives, Kiel (former MaK works) |
| Wheel arrangement | B'B' (four axles in two two-axle bogies) |
| Transmission | hydraulic via torque-converter transmission |
| Body style | Centre cab between two hoods of different lengths |
| Type designation | G for transmission locomotive (Getriebelok), number as a power indication, BB for two two-axle bogies |
| UIC type code | 92 – diesel locomotive |
Identifying features
Is this really the class in front of you?
- Four axles in two bogies – not a rigid frame with three axles
- Cab in the centre between two hoods, not at one end
- Short and long hood of clearly different lengths
- Exhaust and radiator grilles on the longer hood
- Data panel with twelve-digit number, country code and vehicle keeper marking
- Compact overall length compared with the larger G types
Updated: August 2026 – A compact diesel locomotive with a cab in the middle, two hoods of unequal length and four axles: that’s the basic form by which you recognise the Vossloh G 800 BB and its relatives. It’s rarely in the limelight, but it works in ports, on works railways and at sidings wherever wagons need to be moved. This page shows how to classify it and what its type designation reveals.
Inconspicuous locomotives are the more interesting finds
Works and trip-working locomotives aren't in any timetable – document your sighting directly in Traintrack.
What is the Vossloh G 800 BB?
The Vossloh G 800 BB is a four-axle diesel-hydraulic locomotive from the Kiel locomotive works, which goes back to the long-established Maschinenbau Kiel – MaK for short – and from the late 1990s was run under the name Vossloh. It’s the smallest member of the classic BB family and is designed for shunting, works and trip-working duties.
The type designation isn’t a random product but a system. G stands for “Getriebelok” (transmission locomotive), i.e. hydraulic transmission. The number is a power indication that lets you rank the models within the family against each other. BB describes the B’B’ wheel arrangement: two two-axle bogies, all axles powered. Once you’ve understood this pattern, you can roughly classify a whole range of Kiel types at first sight.
Identifying it in three steps
Axles and running gear
Four axles, spread over two bogies. If the locomotive runs on three axles in a rigid frame, you're looking at a different family – such as the three-axle Vossloh G 6.
Position of the cab
If the cab sits in the centre between two hoods, the locomotive belongs to the shunting and trip-working body style. A cab at one end, by contrast, points to a pure main-line locomotive.
Number in the data panel
The twelve-digit number begins with 92 for a diesel locomotive and 80 for Germany. After that come the class, serial number, check digit and the vehicle keeper marking.
Confirmation always comes from the number, never from the colour. How to fully decode the twelve-digit vehicle number is explained digit by digit in the guide to the UIC number and its check digit.
The Kiel type family at a glance
It helps enormously to know the family as a whole, because the individual types look similar in the field. The following overview is ordered by body style and task, not by exact power figures.
| Type | Wheel arrangement | Basic character |
|---|---|---|
| G 6 | three axles, rigid frame | compact shunter for tight layouts |
| G 800 BB | B’B’ | light shunting and trip-working locomotive |
| G 1000 BB | B’B’ | medium general-purpose locomotive, widespread |
| G 1206 | B’B’ | powerful trip-working and main-line locomotive |
| G 2000 BB | B’B’ | heavy main-line locomotive for freight trains |
You’ll find the next-larger sister on the page for the Vossloh G 1000 BB, and the family’s best-known member on the page for the MaK G 1206. If you want to see the three-axle counterpart, look at the Vossloh G 6.
Keep track of the G family
With sightings and numbers, you can see immediately which types you're still missing.
Where you’ll find locomotives like this
A locomotive of this size works where wagons are moved individually or in small groups. That means industrial sidings, port railways, transhipment terminals and the trip workings that shuttle wagons between a siding and the next hub station.
For spotters, that means two things. First: these movements aren’t in any timetable you could look up online. Second: they often still follow a fixed daily rhythm, because the operations of the works being served dictate it. If you take a few mornings to watch, you’ll recognise patterns. How to explore such areas systematically and legally is described in the guide to spotting at a marshalling yard.
A clear line: tracks and operational facilities are off-limits
Sidings, works railways, port railways and depots are private property or closed operational facilities. Entering them is not permitted, whatever the subject. Photograph only from publicly accessible paths, roads and bridges. Legal details always depend on the individual case.
Showing what matters in your photos
Shunting and trip-working locomotives offer something photographically that main-line locomotives rarely provide: time. They stand, they move slowly, they come back. That allows more careful planning of your shots.
- Side view as the base shot. It shows both hoods, the centre cab and the full vehicle number in one picture.
- Three-quarter view for impact. An angle of around 30 degrees makes the compact body style look more three-dimensional than a flat side shot.
- Detail of the data panel. A second shot with the number and vehicle keeper marking makes the sighting verifiable.
- Include the working situation. A locomotive with a group of wagons attached tells you more about its job than an isolated portrait.
So that your pictures can still be found later, it’s worth looking at how to use EXIF data for spotting – date, time and location are already stored in the file and save a lot of follow-up research.
MaK, Vossloh and the history of the Kiel works
Why closely related locomotives are sometimes called MaK and sometimes Vossloh regularly confuses newcomers. The explanation is company history, not technology.
Maschinenbau Kiel, MaK for short, built diesel locomotives for works, port and private railways for decades and in the process developed the body style that still sets the standard today: centre cab, two hoods of unequal length, four axles in bogies. At the end of the 1990s, the locomotive division passed to Vossloh. The designs carried on, the name on the builder’s plate changed – which is why technically closely related machines carry different manufacturer names.
Later came a second shift: with Vossloh España in Valencia, Vossloh built up a Spanish arm that developed main-line locomotives with full-width bodies, while Kiel stayed with shunting and trip-working locomotives. Both sites changed owners again in the years that followed.
For spotters, this gives rise to two practical rules. First: the manufacturer’s name says little about the body style. A Vossloh locomotive can be a compact shunting machine from Kiel or a main-line locomotive from Valencia. Second: type designations outlast changes of company. If you know the Kiel system of G or DE, power figure and wheel-arrangement code, you’ll classify the vehicles correctly, regardless of which name happens to be on the plate.
That’s exactly why the full vehicle number is so valuable for sightings: it outlasts company names, changes of keeper and repaints, and always denotes the same machine.
Common mix-ups
It points to a G 800 BB if …
- four axles run in two bogies
- the cab sits in the centre between two hoods
- the locomotive looks more compact than the familiar G 1206 machines
- the vehicle number begins with 92 80
Look more closely if …
- you have to decide between a G 800 BB, G 1000 BB and G 1206
- the locomotive wears a company livery without a type marking
- you only catch a partial view between groups of wagons
It's not a G 800 BB if …
- you count three axles in a rigid frame
- the cab sits at one end with a long engine room in front of it
- six axles run under the locomotive
Conclusion
The Vossloh G 800 BB is no star, but it’s a good lesson. It teaches you the logic of the Kiel type designations, the meaning of the wheel arrangement and the difference between keeper and operator. Once you’ve mastered these three things, you can properly classify almost any diesel locomotive of a private operator.
In short
Four axles, centre cab, hydraulic transmission: that's the basic form of the Kiel BB family. The exact type is decided by the vehicle number – colour and markings change, the number doesn't.
Summary
- The G 800 BB belongs to the Kiel family of types that emerged from MaK's locomotive building and is now carried under the Vossloh name.
- Body style and wheel arrangement are the quickest recognition features; the vehicle number provides confirmation.
- It works where wagons are delivered, collected and moved short distances – rarely at the head of long main-line trains.
- Because such locomotives are often hired out, markings and area of operation change regularly.
Frequently asked questions
What does the designation G 800 BB mean?
The G stands for “Getriebelok”, i.e. hydraulic transmission via a torque converter. The number is a rough power indication within the family, and BB describes the B'B' wheel arrangement – two two-axle bogies. Diesel-electric sister types carry a DE in their name instead.
How do I recognise a G 800 BB in the field?
By the combination of four axles, a centre cab and two hoods of different lengths. That rules out three-axle shunting locomotives with a rigid frame, as well as main-line locomotives with a cab at one end. The exact type within the family is ultimately given by the vehicle number.
Where are locomotives like this used?
Typical duties are works railways, port and industrial sidings, trip workings between a siding and a hub station, and engineering trains. The specific deployment depends on the keeper in question and changes with contracts – current information should be checked, not assumed.
What's the difference from the G 1000 BB?
Both share the same design principle; the G 1000 BB is the more powerful and larger machine. Visually they're similar enough that you can easily get it wrong from a distance. You can reliably tell them apart by the vehicle number and the type marking on the locomotive.
Why is there a 92 in the vehicle number?
The first two digits of the twelve-digit number form the UIC type code. 92 means diesel locomotive, 91 electric locomotive, 98 diesel shunting and small locomotive, 99 departmental vehicle. The allocation follows the approval, not the actual day-to-day use.
Is the G 800 BB a shunting or a main-line locomotive?
It sits right in between. The body style with a centre cab and a good view to both sides is designed for shunting and trip working, while at the same time it's fit for main-line running. It's precisely this dual role that makes the Kiel BB family so attractive to private operators.
How can I tell who owns the locomotive?
By the vehicle keeper marking after the vehicle number, for example D-… for vehicles registered in Germany. Note: the keeper isn't necessarily the company currently running the locomotive. With hired locomotives, keeper, operator and livery regularly differ from one another.
Is it worth documenting locomotives like this?
Yes, precisely because they're inconspicuous. Works and trip-working locomotives don't appear in any timetable, change keeper and colour, and sometimes vanish from a location without warning. A sighting with number, location and date is therefore often the only reliable trail.
Log your sighting of the Vossloh G 800 BB
Date, location and vehicle number logged in seconds – and visible to the community.
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