Od103

 

 

SBB 114 (Winterthur 785/1893) became Warschau 1903 and later LVD An 28. Handed over to PKP, it was finally designated Od103-1 or Od103-3. Source: www.commons.wikipedia.org.

 

 

Jura-Simplon Bahn 110, location and date unknown. Source: as above.

 

 

No. 193 (Winterthur 1717/1906) was delivered directly to SBB; location and date unknown. Source: as above.

 

 

Latvian An 27 (wood-fired!), location and date unknown. This locomotive later became Od103-1 or Od103-3. Many thanks to Toms Altbergs!

 

 

 

 

 

 

 

Between 1892 and 1896 SLM Winterthur (Schweizerische Lokomotiv- und Maschinenfabrik) built thirty class A2T passenger locomotives for the Jura-Simplon Bahn. They ran on saturated steam and were fitted with compound steam engines. Their design was based on Prussian Musterblatt III-1e (later class P42, after WWI PKP class Od2). Further twenty locomotives of this type, differing only in minor details, were built for Schweizerische Nordostbahn between 1898 and 1901. Both these railways were later nationalized: Nordostbahn in 1902 and Jura-Simplon in 1903. Their A2Ts were taken over by Schweizerische Bundesbahnen (SBB) and classed A2/4. They were later joined by further thirty engines originally ordered by Nordostbahn, delivered between 1902 and 1906.

During WWI SBB launched a vast electrification program, due to dramatic shortage of coal. Steam locomotives thus gradually became surplus. In 1917 eleven A2/4s were sold to Deutsche Heeresbahn (German military railways) and designated Warschau 1901 through 1911. During the closing stages of war at the eastern front three were left in Poland and taken over by PKP. Two more were acquired by Latvian state railways LVD and designated An 27 and An 28. In 1919 they were handed over to PKP. Initially, due to their similarity to the Prussian class P42, these engines were classed P4szw, where the upper index stood for ‘Szwajcaria’ (Switzerland). Later they were re-classed Od103. Little is known about their service, apart from the fact that all five were still in use in 1927, but were withdrawn before 1931. Assignment of service numbers to individual examples is not known. Most probably Warschau 1903 (Winterthur 785/1903, former SBB 114, later LVD An 28) and Warschau 1901 (An 27) became Od103-1 and Od103-3; many thanks to Toms Altbergs for confirmation. In Switzerland this class was withdrawn until 1926 and not a single example has been preserved.


 

Main technical data

 

No.

Parameter

Unit

Value

1.

Years of manufacture

-

1892 – 1906 

2.

Total built / used in Poland

-

80 / 5

3.

Tender class

-

12C103

4.

Axle arrangement

-

2-2-0

5.

Design maximum speed

km/h

90

6.

Cylinder bore

mm

460 / 680

7.

Piston stroke

mm

660

8.

Engine rating

kW/hp

9.

Tractive effort

kG

5 850

10.

Boiler pressure

MPa

1.33

11.

Grate dimensions

m X m

2.18 m2

12.

Firebox heating surface

m2

13.

Distance between tube plates

mm

14.

Number of flue tubes

-

15.

Heating surface of flue tubes

m2

16.

Number of smoke tubes

-

-

17.

Heating surface of smoke tubes

m2

-

18.

Evaporating surface, total

m2

119.0

19.

Superheater heating surface

m2

-

20.

Diameter of drivers

mm

1 830

21.

Diameter of idlers front/rear

mm

980 / -

22.

Total weight, empty

kg

23.

Total weight, working order

kg

50 000

24.

Weight on drivers, working order

kg

31 000

25.

Weight with tender, empty

kg

26.

Weight with tender, working order

kg

80 000

27.

Maximum axle load

T

15.5

28.

Axle base (with tender)

mm

12 820

29.

Overall length (with tender)

mm

15 820

30.

Brake type

-

Westinghouse

 

 

References and acknowledgments

 

-       LP;

-       www.pl.wikipedia.org;

-       www.de.wikipedia.org;

-       Toms Altbergs (private communication).