Queensland B11 Baldwin class locomotive

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Queensland Railways B11 class
Type and origin
Power typeSteam
Builder Baldwin Locomotive Works
Serial number4594, 4596
Build date1880
Total produced2
Specifications
Configuration:
​
 •  Whyte 2-6-0
Gauge 1,067 mm (3 ft 6 in)
Fuel typeCoal
Cylinders 2
Career
Operators Queensland Railways
Numbers178, 179
Dispositionboth scrapped

The Queensland Railways B11 class locomotive was a class of 2-6-0 steam locomotives operated by the Queensland Railways.

2-6-0 locomotive wheel arrangement

Under the Whyte notation for the classification of steam locomotives, 2-6-0 represents the wheel arrangement of two leading wheels on one axle, usually in a leading truck, six powered and coupled driving wheels on three axles and no trailing wheels. This arrangement is commonly called a Mogul.

Steam locomotive Railway locomotive that produces its pulling power through a steam engine

A steam locomotive is a type of railway locomotive that produces its pulling power through a steam engine. These locomotives are fueled by burning combustible material – usually coal, wood, or oil – to produce steam in a boiler. The steam moves reciprocating pistons which are mechanically connected to the locomotive's main wheels (drivers). Both fuel and water supplies are carried with the locomotive, either on the locomotive itself or in wagons (tenders) pulled behind.

Queensland Rail railway operator in Queensland, Australia

Queensland Rail, also known as QR, is a railway operator in Queensland, Australia. Owned by the Queensland Government, it operates suburban and long-distance passenger services, as well as owning and maintaining approximately 6,600 kilometres of track.

Contents

History

In 1880, the Queensland Railways took delivery of two 2-6-0 locomotives built by Baldwin Locomotive Works. Per Queensland Railway's classification system they were designated the B12 class, B representing they had three driving axles, and the 11 the cylinder diameter in inches. [1]

Baldwin Locomotive Works former locomotive manufacturer from the United States of America

The Baldwin Locomotive Works (BLW) was an American manufacturer of railroad locomotives from 1825 to 1956. Originally located in Philadelphia, it moved to nearby Eddystone, Pennsylvania, in the early 20th century. The company was for decades the world's largest producer of steam locomotives, but struggled to compete as demand switched to diesel locomotives. Baldwin produced the last of its 70,000-plus locomotives in 1956 and went out of business in 1972.

Driving wheel powered wheel of a railway locomotive

On a steam locomotive, a driving wheel is a powered wheel which is driven by the locomotive's pistons. On a conventional, non-articulated locomotive, the driving wheels are all coupled together with side rods ; normally one pair is directly driven by the main rod which is connected to the end of the piston rod; power is transmitted to the others through the side rods.

Cylinder (engine) central working part of a reciprocating engine or pump, the space in which a piston travels, often equipped with a cylinder liner

A cylinder is the central working part of a reciprocating engine or pump, the space in which a piston travels. Multiple cylinders are commonly arranged side by side in a bank, or engine block, which is typically cast from aluminum or cast iron before receiving precision machine work. Cylinders may be sleeved or sleeveless. A sleeveless engine may also be referred to as a "parent-bore engine".

Class list

Works
number		Great Northern
Railways number		CS
number		Bowen Railways
number		 Queensland Railways
number		In serviceNotes
4594531781882Sold to contractor O’Rourke & McSharry, repurchased 1887 as no.3, transferred to Cairns May 1888, hired to contractor John Robb until 1891, sold to Cairns-Mulgrave Tramway 1896, reacquired with tramway September 1911, scrapped August 1913
4596121791880Sold to contractor J Bashford 1884, repurchased 1886, returned to service August 1889 as no. 23, transferred to Bowen Railway as no. 2, sold to Bowen-Proserpine Tramway July 1909, reacquired with tramway April 1911, sold to Chillagoe Railway & Mining Co. March 1917

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References

  1. ↑ Armstrong, John (1985). Locomotives in the Tropics Volume 1. Brisbane: Australian Railway Historical Society. pp. 33, 97. ISBN   0 909937 13 3.
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