0-4-4-0

An 0-4-4-0 of the metre gauge C. de F. de Madagascar. Baldwin Locomotive Works #44609, built December, 1916.

In the Whyte notation for the classification of steam locomotive wheel arrangement, a 0-4-4-0 is a locomotive with no leading truck, two sets of four driving wheels, and no trailing truck. Examples of this type were constructed as Shay, Heisler, Climax, Mallet, Meyer and Double Fairlie locomotives. A similar configuration was used on some Garratts, but it is referred to as 0-4-0+0-4-0.

Equivalent classifications

1954 Baldwin 0-4-4-0 Diesel-Electric Switcher at the Texas Transportation Museum

Other equivalent classifications are:

UIC classification: BB (also known as German classification and Italian classification)
French classification: 020+020
Turkish classification: 22+22
Swiss classification: 2/2+2/2

The UIC classification is refined to B'B for a Mallet locomotive or B'B' for a Meyer locomotive.

Fairlie examples

A modern Fairlie 0-4-4-0 built for the Ffestinog Railway

The first Fairlie 0-4-4-0 was built for the Neath and Brecon Railway in 1866, but the design came to prominence in 1869 with Little Wonder for the Festiniog Railway in North Wales followed by five others. One locomotive was supplied to the Denver and Rio Grande Railroad in 1872. The type was also used in Mexico, New Zealand and Russia on Transcaucasian Railway.

Survivors

There are three examples of surviving Fairlie 0-4-4-0 locomotives on the Ffestiniog Railway the last of which was built in 1992. "Josephine", a Vulcan Foundry-built Double Fairlie (built in 1872 for the Dunedin and Port Chalmers Railway Company) survives as a static exhibit in Dunedin, New Zealand.

Eritrean Railways

Eritrean Railways used many 0-4-4-0Ts. The last was built in their own shops in 1963, making it the last Mallet built in the world.

External links

More information on Eritrean Railways' 0-4-4-0Ts.

Steam locomotive wheel arrangements
Single engine types	0-2-2 0-2-4 2-2-0 2-2-2 2-2-4 4-2-0 4-2-2 4-2-4 6-2-0 0-3-0 0-4-0 0-4-2 0-4-4 0-4-6 2-4-0 2-4-2 2-4-4 2-4-6 4-4-0 4-4-2 4-4-4 4-4-6 0-6-0 0-6-2 0-6-4 0-6-6 2-6-0 2-6-2 2-6-4 2-6-6 4-6-0 4-6-2 4-6-4 0-8-0 0-8-2 0-8-4 2-8-0 2-8-2 2-8-4 2-8-6 4-8-0 4-8-2 4-8-4 4-8-6 6-8-6 0-10-0 0-10-2 2-10-0 2-10-2 2-10-4 4-10-0 4-10-2 0-12-0 2-12-0 2-12-2 2-12-4 4-12-2 4-14-4
Divided drive and Duplex engine types	0-2-2-0 2-2-2-0 2-2-2-2 2-2-4-0 4-2-2-0 2-4-6-2 4-4-4-4 6-4-4-6 4-4-6-4 4-6-4-4
Articulated locomotives Fairlie, Meyer and Garratt types	0-4-0+0-4-0 2-4-0+0-4-2 2-4-2+2-4-2 4-4-2+2-4-4 0-6-0+0-6-0 0-6-2+2-6-0 2-6-0+0-6-2 2-6-2+2-6-2 4-6-0+0-6-4 4-6-2+2-6-4 4-6-4+4-6-4 2-8-0+0-8-2 2-8-2+2-8-2 4-8-0+0-8-4 4-8-2+2-8-4 4-8-4+4-8-4
Articulated locomotives Mallet types (includes Triplex types)	0-4-4-0 0-4-4-2 2-4-4-0 2-4-4-2 0-6-6-0 2-6-6-0 2-6-6-2 2-6-6-4 2-6-6-6 2-6-8-0 4-6-6-2 4-6-6-4 0-8-6-0 0-8-8-0 2-8-8-0 2-8-8-2 2-8-8-4 4-8-8-2 4-8-8-4 2-10-10-2 2-8-8-8-2 2-8-8-8-4 2-8-8-8-8-2 2-8-8-8-8-8-2 2-10-10-10-10-10-2
Articulated locomotives Engerth types	0-4-4 0-4-6 2-6-2 0-6-4 0-6-4-0 0-8-4 0-8-6
Geared locomotives	Shay Climax Heisler Willamette
Other notation forms: AAR Swiss UIC

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