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The reference for locomotives and railcars

New South Wales class F351

New South Wales class X10

Australia 1884 18 produced
Australian Railway Historical Society, New South Wales Division

The class F351 was a 2-4-0T tank locomotive designed for suburban service around Sydney. Very similar to a 1864 design for the Isle of Wight Central Railway, the first twelve were only built by Beyer, Peacock & Co. in 1884 and 1885. These were numbered 351 to 362 and were followed by numbers 363 to 368 built by Henry Vale in 1887. Their drivers had a diameter of five feet and one inch and their cylinders measured 15 by 22 inches. The cylinders and valve gear were both mounted on the inside.

366 was involved in the Redfern collision in 1894 and in 1901, 363 derailed near Sydenham. The second accident was attributed to oscillations at speed, what meant that the F351 was now limited to 30 mph. From now on, they were only used in yards and depots. From 1914, the remaining class members got new boilers. In 1924, they became part of the class X10. By 1940, only three remained in active service. From these, 1042 had the longest life. It was overhauled in 1970 and withdrawn three years later. Today this locomotive and 1033 are surviving on static display.

Technical data

General

Built
1884-1887
Manufacturers
Beyer, Peacock & Co., Henry Vale
Wheel arrangement
2-4-0T (Porter)
Gauge
1,435 mm (Standard gauge)

Dimensions and weights

Wheelbase
4.19 m
Service mass
39.3 t
Adhesion mass
31.4 t
Rigid wheelbase
2.13 m
Axle load
16.2 t
Water capacity
3,865 l
Fuel capacity
2 t (coal)

Boiler

Grate area
1.301 m²
Firebox surface
6.968 m²
Tube heating surface
76.645 m²
Evaporative heating surface
83.613 m²
Total heating surface
83.6 m²

Power plant

Driver diameter
1,549 mm
Boiler pressure
9.7 bar
Expansion type
simple expansion
Cylinders
two, 381 x 559 mm

Power

Power source
steam
Estimated power
186 kW (253 PS)
Starting effort
43.0 kN

Calculated values

Factor of adhesion
1 : 7.16
Optimal speed
27 km/h
Power-to-weight ratio
4.7 kW/t
Heating Surface Equivalent
118.5 m²
Cylinder volume/HSE
1 : 1,075.67
Adhesive weight/Total
1 : 1.25
Tractive force/Heating surface
1 : 10.73
Grate area/Heating surface
1 : 64.27
Firebox/Tube surface
1 : 11.00
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