Queensland A10 Neilson class locomotive

For other uses, see A10 class.
Queensland A10 Neilson class locomotive

A.10 locomotive on display for the Railway Pageant at Ipswich, 1936.
Type and origin
Power type Steam
Builder Neilson and Company
Serial number See numbering table
Build date 1865-1866
Total produced 13
Specifications
Configuration 0-4-2
Gauge 3 ft 6 in (1,067 mm)
Driver diameter 36 in (914 mm)
Loco weight 13.6 long tons (15.2 short tons; 13.8 t)
Tender weight 9.35 long tons (10.5 short tons; 9.50 t)
Fuel type Coal
Fuel capacity 2.5 long tons (2.80 short tons; 2.54 t)
Water cap 560 imp gal (2,500 l; 670 US gal)
Boiler pressure 120 lbf/in2 (827 kPa)
Cylinders Two, outside
Cylinder size 10 in × 18 in (254 mm × 457 mm)
Performance figures
Tractive effort 4,500 lbf (20.0 kN)
Career
Operators Queensland Railways
Class A10
QR heritage loco A10 no. 6 on its first trip after restoration ~1990

The A10 Neilson class steam locomotive is a 0-4-2 locomotive of the Queensland Railways(QR).

The locomotives operated on 1,067 mm (3 ft 6 in) gauge. The “A”, is used to identify the number of coupled wheels, being four coupled wheels for the A10 class, followed by numerals indicating the cylinder diameter of ten inches (254 mm).

Another view of A10 no. 6 on its first post-restoration trip, ~1990

Overview

There were 12 locomotives bought by Queensland Government Railways. Eight were built for the Southern and Western Railway based on Ipswich and another four for the Central Railway at Rockhampton. One engine was also constructed for Peto, Brassey and Betts, a railway contractor building the line to Toowoomba. This was later purchased by the railway in 1876. These locomotives were built by Neilson and Company of Glasgow, Scotland between 1865 and 1866. All engines were fitted with injectors instead of feed pumps when built.

4D10 tank engine conversions

Four engines were converted to 4D10 tank engines, the “D”, is used to identify the locomotive as a tank engine, followed by numerals indicating the cylinder diameter of ten inches, the number “4” was used to denote the number of coupled wheels before the “D”.

The 20th century

Five engines survived the turn of the century although four of them were written off in 1902. N°3 continued in use shunting Bowen Jetty until 1914. It was then stored at Ipswich Workshops and restored to working order for the Railway Pageant in 1936. Afterwards it was preserved near Countess Street in Roma Street railway yard before being moved to Limestone Park at Ipswich in 1959.

Numbering

From: Queensland's Railways Interest Group[1]

QR number Works number Year built
4 1168 1865
5 1167 1865
6 1170 1865
7 1169 1865
8 1244 1866
9 1208 1866
10 1209 1866
11 1210 1866
12 1211 1866
13 1213 1866
14 1215 1866
2 1212 1866
3 1214 1866

Preservation

A10 N°6 at the Workshops Rail Museum in 2011.

N°6 was sold to Gibson & Howes in 1896 for use on their Wattawa line. It was reboilered in 1955 and continued to serve the company until 1965 when it was presented to QR for Centenary Celebrations. The engine is retained in the Queensland Rail Heritage Fleet at Ipswich Workshops in working order and on display at the Workshops Rail Museum when not required for main line tours.[2]

See also

References

  1. ↑ http://www.qrig.org/motive-power/locomotives/steam/a10-neilson-originally-b-class
  2. ↑ http://www.theworkshops.qm.qld.gov.au/

External links

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