New South Wales Z21 class locomotive explained

New South Wales Z21 Class
Powertype:	Steam
Builder:	Baldwin Locomotive Works
Totalproduction:	10^[1]
Whytetype:	2-6-0^[2]
Gauge:	^[3]
Driverdiameter:	^[4]
Boilerpressure:	^[5]
Cylindersize:	^[6]
Tractiveeffort:	^[7]
Firstrundate:	March 1885^[8]
Disposition:	All scrapped by 1941^[9]

The Z21 class (formerly L.304 class) was a class of steam locomotives built for the New South Wales Government Railways in Australia.^{[10] [11] [12]}

Wheel arrangement

The wheel arrangement for the Z21 class was 2-6-0. 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.^[13]

History

The last engine was scrapped in 1941.^[14]

See also

• NSWGR steam locomotive classification

Notes and References

1. Book: Oberg, Leon. Locomotives of Australia. 1975. 0-589-07173-4. 54.
2. Book: Oberg, Leon. Locomotives of Australia. 1975. 0-589-07173-4. 54.
3. Book: Oberg, Leon. Locomotives of Australia. 1975. 0-589-07173-4. 54.
4. Book: Oberg, Leon. Locomotives of Australia. 1975. 0-589-07173-4. 54.
5. Book: Oberg, Leon. Locomotives of Australia. 1975. 0-589-07173-4. 54.
6. Book: Oberg, Leon. Locomotives of Australia. 1975. 0-589-07173-4. 54.
7. Book: Oberg, Leon. Locomotives of Australia. 1975. 0-589-07173-4. 54.
8. Book: Oberg, Leon. Locomotives of Australia. 1975. 0-589-07173-4. 54.
9. Book: Oberg, Leon. Locomotives of Australia. 1975. 0-589-07173-4. 54.
10. Book: Preston, Ron G. Tender into Tank. 1984. New South Wales Rail Transport Museum. Sydney. 11–57. 0-909862-18-4.
11. Book: Grunbach, Alex. A Compendium of New South Wales Steam Locomotives. 1989. Australian Railway Historical Society, NSW Division. Sydney. 0-909650-27-6. 41–45.
12. New South Wales Railways 1855-1955. Published by Department of Railways
13. Web site: American Steam Locomotive Wheel Arrangements. www.steamlocomotive.com. 2016-10-25.
14. Book: Oberg, Leon. Locomotives of Australia. 1975. 0-589-07173-4. 54.