A superb job of work done by the Cheddleton Team
Following pictures Courtesy of the Churnet Valley
Before and after
The workmanship is excellent
Ready for Hydraulic testing
Again many thanks
Above I again stress the diesel was purely to provide
Air foe Braking the train.
Further information
Combined output of T1A and T2A had been just ten examples; new machine, with factory designation T3A (commonly known as ‘Ferrum 47’), went into series production in 1947 and, until 1961, 477 examples were built by Fablok. There are, in fact, some discrepancies between various sources as far as the total output is concerned; numbers from 437 to 480 are given. This total includes also later variant, known as ‘Ferrum 724’, developed in order to fulfill foreign orders. As early as in 1953, three machines were sold to Romania. In 1959 three (some sources incorrectly give four) went to Hungary, purchased for the Ózdi Kohászati Üzemek (Ózd Iron Works); one was withdrawn in 1987 and the remaining two followed in 1991. Hungarian engines were unofficially nicknamed ‘Gomulka’, after the first secretary of the Polish communist party then in office. China bought probably 82 examples between 1958 and 1960; they were designated class XK13 and some were fitted with makeshift tenders. Chinese machines had air brakes, Janney couplers and electric lightning. It should be noted that first machines for domestic use were fitted with steam brakes and kerosene lights, in order to facilitate rapid deliveries. In fact, differences between two basic variants were limited to details and all later examples, not only export ones, were also built as ‘Ferrum 724’ type. According to Duncan Cotterill’s very interesting and competent website on Chinese steam power (www.railography.co.uk/tractive-efforts), last XK13s were reported in service in 1993 and probably three examples have been preserved at various locations. Given the fact that reliable sources give 378 examples built for domestic operators, this leaves two examples; possibly they went to Northern Korea (either directly or via China), as one source reports export also to this country, but confirmation is lacking.
Main technical data
No.
|
Parameter
|
Unit
|
Value
|
1.
|
Years of manufacture
|
-
|
1947 – 1961
|
2.
|
Total built / used in
|
-
|
4772) / 378
|
3.
|
Tender class
|
-
|
-
|
4.
|
Axle arrangement
|
-
|
0-3-0
|
5.
|
Design maximum speed
|
km/h
|
40
|
6.
|
Cylinder bore
|
mm
|
2 X 460
|
7.
|
Piston stroke
|
mm
|
540
|
8.
|
Engine rating
|
kW/hp
|
294 / 400
|
9.
|
Tractive effort
|
kG
|
7 850
|
10.
|
Boiler pressure
|
MPa
|
1.33
|
11.
|
Grate dimensions
|
m X m
|
1.7 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
|
100.0
|
19.
|
Superheater heating surface
|
m2
|
-
|
20.
|
Diameter of drivers
|
mm
|
1150
|
21.
|
Diameter of idlers front/rear
|
mm
|
-
|
22.
|
Total weight, empty
|
kg
|
34 800
|
23.
|
Total weight, working order
|
kg
|
44 400
|
24.
|
Weight on drivers, working order
|
kg
|
44 400
|
25.
|
Weight with tender, empty
|
kg
|
-
|
26.
|
Weight with tender, working order
|
kg
|
-
|
27.
|
Maximum axle load
|
T
|
14.8
|
28.
|
Axle base (with tender)
|
mm
|
3 400
|
29.
|
Overall length (with tender)
|
mm
|
9 170
|
30.
|
Brake type
|
-
|
steam / Westinghouse1)
|
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