# List of Württemberg locomotives and railbuses

This list covers the locomotives and railbuses operated by the Royal Württemberg State Railways (Königlich Württembergische Staats-Eisenbahnen), the national railway company of Württemberg, a state in southwest Germany that was part of the German Empire. In 1920 the Royal Württemberg State Railways, along with the other German state railways (Länderbahnen), were merged into the Deutsche Reichsbahn.

## Locomotive classification

The Württemberg state railway first divided its locomotives into classes in 1845. This first categorisation into classes I to VII was based on the order in which individual vehicles were procured.
The scheme proved to be unworkable in practice, so in 1858 a new system was introduced as follows:
* A - Light express and fast-stopping train locomotives
* B - Heavy express and fast-stopping train locomotives
* C - Light passenger train locomotives
* D - Heavy passenger train locomotives
* E - Light goods train locomotives
* F – Heavy goods train locomotives
* T - Tank locomotives
In several cases the previous classes were simply redesignated. In other cases new locomotives and rebuilds were grouped together into one class despite being of different designs. Over the course of time, the shortcomings of the system became apparent. In particular, the division of locomotives into 'light' and 'heavy' groups was unfortunate. The classification scheme was also no longer sufficient for new locomotives. As a result, it was changed slightly in 1892. On retirement, classes that became 'free' were used again.
* A to E - Passenger train locomotives
* F to K - Goods train locomotives
* T - Tank locomotives
Individual classes were differentiated by means of lower case letters in order to be able to indicate certain characteristics, as well as by Arabic numerals to distinguish the individual designs.
* a - Older locomotives
* aa - Very old, ready for retirement
* c - Compounds (Verbundtriebwerk)
* d - duplex (double drive = Mallet)
* h - Superheated locomotive
* n - Branch line locomotive
* z - Rack railway locomotive
* s - Narrow gauge locomotive, 1,000 mm (3 ft 3+3⁄8 in) gauge
* ss - Narrow gauge locomotive, 750 mm (2 ft 5+1⁄2 in) gauge
Furthermore, several special abbreviations were introduced, such as KL for small locomotives, DW for steam railbuses, BW for petrol railbuses and AW for accumulator cars.
Württemberg locomotives were given names up to 1896. Subjects for locomotive names were generally geographical features (towns and rivers). Very often, locomotives were given names from their area of operations. On being transferred elsewhere, their names were usually changed.
In addition to names, locomotives were also given numbers. Up to 1890, they were sequentially numbered from 1 - 377. From that time onwards, newly procured locomotives in each class were given a special group of numbers, generally one hundred, beginning at 401.
On rebuilding, locomotives were organised into new classes, but the individual locos each retained their old operating numbers.

## Steam locomotives
### Early locomotives for all traffic types

The majority of these locomotives were rebuilt between 1867 and 1893. None were given operating numbers by the Deutsche Reichsbahn.
| Class (to 1858) | Class (from 1858) | Railway number(s) | Quantity | Year(s) of manufacture | Type | Remarks |
| I | | 1–3 | 3 | 1845 | 2′B n2 | Built by Norris (USA), Retired by 1861 |
| II [de] | | 4–6 | 3 | 1845 | 1′B n2 | Built by Baldwin (USA), sold in 1854 to the SCB |
| III [de] | C (old) D (old) | 7–29, 31, 33–34, 38–52 | 41 | 1846–1853 | 2′B n2 | In 1858 some classified as C, some as D |
| IV [de] | E (Alb) | 30, 32, 35–37 | 5 | 1849–1851 | C n2 | So-called "Alb" locomotives; first axle uncoupled in 1856 (1B n2) and replaced by a bogie in 1859 (2′B n2); no. 32 Ulm rebuilt in 1869 into a tank locomotive (2′B n2t) |
| V [de] | D (old) | 53–57 | 5 | 1854 | 2′B n2 | |
| VI [de] | A (old) | 58–63, 74–77, 96–97 | 12 | 1854–1860 | 2′B n2 | |
| VII [de] | D (old) | 1"–6", 9", 10", 64–73, 90–95, 98–111, 120–124, 144–151 | 51 | 1856–1861 | 2′B n2 | |
| | E (old) [de] | 78–89, 112–119, 125–129 | 25 | 1859–1863 | 2′B n2 | 4 units sold in 1872 to the Imperial Railways in Alsace-Lorraine |
| | B (old) [de] | 140–143, 178–179 | 6 | 1865–1868 | 2′B n2 | Bogie of no. 140 Wien experimentally replaced in 1890 by radially-swinging leading wheels (1′B n2) |

### Passenger and express train locomotives

| Class | Railway number(s) | DRG number(s) | Quantity | Year(s) of manufacture | Type | Remarks |
| B/B2 to 1869: D | 180–183, 208–251, 270–295, 306–317 | | 86 | 1868–1878 | 1B n2 | Nos. 180–183 classified on delivery as D, regrouped into class B in 1869, reclassified in 1892 as B2 |
| A from 1892: Aa | 69", 121", 318–327, 334–336 | | 15 | 1878–1888 | 1B n2 | Older variety of the Class A 2-4-0 (1B) locomotives; in 1896–1905 13 units were converted to the new design and classified as A again |
| A | 337–341, 363–367 | 34 8102 | 10 | 1888–1891 | 1B n2 | |
| Ac [de] | 342–362, 368–377 | 34 8201–8209 | 31 | 1889–1897 | 1B n2v | |
| E [de] | 401–410 | | 10 | 1892 | 1′B1′ n3v | |
| D | 421–434 | | 14 | 1898–1905 | 2′C n4v | |
| AD | 451–500, 1501–1538 | 13 1601–1624 | 88 | 1899–1907 | 2′B n2v | |
| ADh | 1541–1557 | 13 1701–1714 | 17 | 1907–1909 | 2′B h2 | Superheated version of Class AD; nos. 1541–1542 delivered as 1538–1539 |
| C | 2001–2041 | 18 101–137 | 41 | 1909–1921 | 2′C1′ h4v | |

### Goods train locomotives

| Class | Railway number(s) | DRG number(s) | Quantity | Year(s) of manufacture | Type | Remarks |
| F [de] from 1892: Fa | 8"...127", 130–139, 152–171, 184–207, 252–269, 296–305, 328–333 | | 98 | 1864–1880 | C n2 | 96 units rebuilt in 1890–1910 into classes Fa (rebuild) and F2 (rebuild) |
| F 2 | 601–606 | | 6 | 1889 | C n2 | |
| Fc [de] | 611–735 | 53 801–865 | 125 | 1890–1909 | C n2v | |
| G [de] | 801–805 | | 5 | 1892 | E n3v | So-called "Elephants", with Klose steering |
| F 1c [de] | 501–506 | | 6 | 1893 | C n2v | With Klose steering |
| F 1 | 511–538 | | 28 | 1894–1896 | C n2 | With Klose steering and inside cylinders |
| H [de] | 811–818 | 57 301–304 | 8 | 1905–1909 | E n2v | |
| Hh [de] | 821–846 | 57 401–417 | 26 | 1909–1920 | E h2 | Superheated version of Class H |
| K | 1801–1815 | 59 001–015 | 15 | 1917–1919 | 1′F h4v | |
| K | (1816–1844) | 59 016–044 | 29 | 1923–1924 | 1′F h4v | Follow-on order, wholly or partly with DRG numbers delivered |
| G12 | 1901–1935 | 58 501–535 | 35 | 1919–1920 | 1′E h3 | Same as Prussian G 12 |
| G12 | Cassel 5761–5768 | 58 536–543 | 8 | 1922 | 1′E h3 | Follow-on order, delivered with Prussian railway numbers |

### Tank locomotives

| Class | Railway number(s) | DRG number(s) | Quantity | Year(s) of manufacture | Type | Remarks |
| B (Krauss) [de] | 172–177 | | 6 | 1867–1868 | B n2t | Krauss type |
| T 3 | 885–994 | 89 301–410 | 110 | 1891–1913 | C n2t | Nos. 993–994 delivered as B1 n2t 998–999,rebuilt into C n2t in 1894 and renumbered as 995–996, renumbered again in 1896 to 993–994 |
| T 3 | 996–999 | 89 411 | 4 | 1894–1896 | C n2t | With Klose steering, also classified as T3L; no. 996 ordered as 1000, but delivered as 996 |
| T [de] | 1001–1010 | 88 7401 | 10 | 1896–1904 | B n2t | No. 1001 ordered as 1000, but delivered as 1001 |
| T 9 [de] | 1101–1110 | 91 2001–2010 | 10 | 1906–1907 | 1′C n2t | Same as Prussian T 9$^3$ |
| T 4 | 851–858 | 92 101–108 | 8 | 1906–1909 | D n2t | |
| T 5 | 1201–1296 | 75 001–093 | 96 | 1910–1917 | 1′C1′ h2t | |
| T 6 | 1401–1412 | 92 001–011 | 12 | 1916–1918 | D h2t | |
| T 18 | 1121–1140 | 78 146–165 | 20 | 1919 | 2′C2′ h2t | Same as Prussian T 18 |
| T 14 | 1441–1460, 1461–1479 | 93 795–814, 93 832–850 | 39 | 1921–1922 | 1′D1′ h2t | Same as Prussian T 14$^1$ |
| Tn [de] | 1001–1030 | 94 101–130 | 30 | 1921–1922 | E h2t | |
| Tk [de] | 1–2 | | 2 | 1876 | B1 n2t | Taken over in 1899 with der Kirchheir Railway (Unterboihingen–Kirchheim unter Teck) |
| Tu [de] | 1–2 | | 2 | 1873 | B n2t | Taken over in 1904 with der Ermsthal Railway (Metzingen–Urach) |
| KL [de] | 1–2 | | 2 | 1908 | B h2t | Small locomotives with Kittel boiler, Taken over in 1910 from an order by the WeEG |

### Rack railway locomotives

Württemberg rack railway locomotives were built for the Honau–Lichtenstein rack railway and Freudenstadt–Klosterreichenbach routes.
| Class | Railway number(s) | DRG number(s) | Quantity | Year(s) of manufacture | Type | Remarks |
| Fz | 591–599 | 97 301–307 | 9 | 1893–1904 | 1′C n2(4v)t | Nos. 591–594 delivered as 691–694 |
| (Hz) | | 97 501–504 | 4 | 1923–1925 | E h2(4v)t | Delivered with DRG numbers |

### Rebuild locomotives

The Royal Württemberg State Railways rebuilt older locomotives in order to re-use them and they did so to a much greater extent than other German state railways. This conversion activity may be divided into two periods of time: in the first one, from 1867 to 1887, under senior engineers Brockmann and Gross, older 2'B locomotives were rebuilt into rigid-axled 1B engines and tank locomotives of various wheel arrangements. Under chief engineers Adolf Klose and Eugen Kittel, the last remaining 2'B locomotives were also rebuilt into tank locomotives during the second conversion period between 1887 and 1910, and older 1B and C types, some of which themselves had already been rebuilt once before, were converted to match the newer locomotive types in appearance and performance.

#### First conversion period 1867–1887

| Class | Railway number(s) | Quantity rebuilt | Year(s) rebuilt | Type | Remarks |
| B3 | 1"...148 | 51 | 1867–1883 | 1B n2 | Rebuilt from 1 B (rebuild), 5 C (old), 45 D (old) |
| D (rebuild) | 4"...48 | 16 | 1867–1874 | 1B n2 | Rebuilt from 10 C (old), 6 D (old) |
| B2 (rebuild) | 7...128 | 16 | 1868–1882 | 1B n2 | Rebuilt from 9 A (old), 2 D (old), 5 E (old) |
| B (rebuild) | 21...125 | 16 | 1869–1884 | 1B n2 | Rebuilt from 3 A (old), 5 D (old), 1 D (rebuild), 7 E (old) |
| T2a | 36, 37 | 2 | 1872–1875 | 1B n2t | Rebuilt from E (Alb) |
| E (rebuild) | 88, 118 | 2 | 1873–1874 | 1′B n2 | Rebuilt from E (old) |
| T4a | 3"...123 | 11 | 1874–1886 | 2′B n2t | Rebuilt from 7 D (old), 1 D (rebuild), 1 E (old), 2 E (Alb) |
| T (rebuild) | 87...129 | 7 | 1879–1887 | B n2t | Rebuilt from E (old); 1 locomotive given the number and name of the retired Class D (old) engine, no. 105 Kirchberg |
| Aa (rebuild) | 142, 179 | 2 | 1882 | 1B n2 | Rebuilt from B (old) |

#### Second conversion period 1887–1910

| Class | Railway number(s) | DRG number(s) | Quantity rebuilt | Year(s) rebuilt | Type | Remarks |
| T2aa | 88, 118 | | 2 | 1887–1892 | 1B n2t | Rebuilt from E (rebuild) |
| T2 | 4"...150 | | 15 | 1890–1894 | 1B n2t | Rebuilt from 1 D (old), 14 D (rebuild)s |
| Fa (rebuild) ab 1906: F2 | 127"...267 | | 8 | 1890–1892 | C n2 | Rebuilt from F (from 1892: Fa) |
| F2 (Rebuild) | 8"...333 | 53 8301 | 88 | 1891–1910 | C n2 | Rebuilt from F (from 1892: Fa) |
| T4n | 101...151 | | 6 | 1891–1895 | 2′B n2t | Rebuilt from D (old) |
| Ab | 7...313 | | 16 | 1893–1902 | 1B n2 | Rebuilt from 3 B, 1 B (rebuild), 2 B2, 10 B2 (rebuild) |
| Fb | 12...148 | | 12 | 1895–1899 | 1′C n2 | Rebuilt from B3 |
| A (rebuild) | 318–327, 334–336 | 34 8101 | 13 | 1896–1905 | 1B n2 | Rebuilt from Aa |

### Narrow gauge locomotives
#### 1000 mm gauge

The Württemberg metre gauge locomotives were built specifically for the Nagold-Altensteig route.
| Class | Railway number(s) | DRG number(s) | Quantity | Year(s) of manufacture | Type | Remarks |
| Ts 4 | 1–3 | 99 171–173 | 3 | 1891–1899 | D n2t | With Klose steering |
| Ts 3 [de] | 10 | | 1 | 1891 | C n2t | Krauss type; former construction locomotive, no. 1900, taken over as an operational locomotive |
| Ts 3 [de] | 9 | 99 121 | 1 | 1900 | C n2t | Borsig type; taken over in 1904 from the fleet of the Württemberg Railway Company (WEG) |
| (Ts 5) | | 99 191–194 | 4 | 1927 | E h2t | Procured by the DRG, delivered with DRG numbers |

#### 750 mm gauge

The Württemberg 750 mm (2 ft 5+1⁄2 in) gauge locomotives were procured for following routes:
* Bottwartal line (Marbach–Beilstein–Heilbronn)
* Zabergäu line (Lauffen–Güglingen–Leonbronn)
* Federsee line (Schussenried–Buchau–Riedlingen)
* Öchsle narrow gauge line (Biberach–Warthausen–Ochsenhausen)
| Class | Railway number(s) | DRG number(s) | Quantity | Year(s) of manufacture | Type | Remarks |
| Tss 4 | 11–13 | 99 621–622 | 3 | 1894 | D n2t | With Klose steering, for Marbach–Beilstein |
| Tss 3 | 21–24 | 99 501–504 | 4 | 1896 | C n2t | With Klose steering, for Lauffen–Güglingen and Schussenried–Buchau |
| Tssd | 41–49 | 99 631–639 | 9 | 1899–1913 | B′B n4vt | Articulated Mallet locomotive |

## Railbuses

| Class | Railway number(s) | DRG number(s) | Quantity | Year(s) of manufacture | Type | Remarks |
| BW | 1–5 | | 5 | 1887–1900 | A1 bm | Petrol railbus |
| DW [de] | 1–5 | | 5 | 1895–1901 | A1 n2 | Steam railbus with Serpollet boiler; no. 1 retired in 1908, nos. 2–5 equipped with Kittel boiler |
| DW [de] | 6–17 | CidT 9–13 | 12 | 1903–1909 | A1 h2 | Steam railbus with Kittel boiler |
| AW | 1 | | (1) | (1897) | Bo′2′ g2t | Accumulator car, rebuilt from a four-wheeled, Class E, passenger coach ; reconverted in 1908 |
| DWss [de] | 1 | | 1 | 1907 | (1A)2′ h2 | Steam railbus with Kittel boiler for 750 mm (2 ft 5+1⁄2 in) gauge |