NZR J class (1939)

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NZR J class
J 1211 being serviced before departure from Napier. Photo by Joseph Christianson
Power type	Steam
Builder	North British Locomotive Works, Scotland
Build date	1939
Configuration	4-8-2
Gauge	3' 6" ft, 1067 mm
Wheel diameter	54"
Wheelbase	34' 10" ft
Length	66' 11" ft
Weight on drivers	44.45 tons
Total weight	108.9 tons
Fuel type	Coal, Oil
Tender capacity	4000 gals water, 6 tons coal, 1350 gals Oil
Boiler pressure	200 psig
Feedwater heater	ACFI
Tractive effort	24960 lbf
Career	New Zealand Railways
Number in class	40
Number	1200 - 1239
Locale	All of New Zealand
First run	1939 - 1940
Last run	1964 - 1967
Retired	1964 - 1971
Scrapped	1969 - 1971
Current owner	Mainline Steam, Steam Incorporated
Disposition	Withdrawn; 12 rebuilt, 3 preserved

The NZR J class steam locomotives were a class of locomotive used in New Zealand. Following the success of the K class on NZR main lines, there was an urgent need for a modern, powerful locomotive capable of running over secondary lines laid with lighter rails. Thus a new "Mountain" 4-8-2 type locomotive was designed and classified by NZGR as the new class J. The 40 locomotives were all built by North British Locomotive Works, Scotland. They should not be confused with the members of 1874's J class, the first tender locomotives to operate in New Zealand.

The class had a notable appearance with the boiler being partly streamlined after the style of the New Haven Railroad's J400 class, and was also similar to the Norfolk and Western Railway class J and the NSWGR 38 class. The J class incorporated all the latest ideas of the K^A class but a noteworthy departure was the use of the Baker valve gear. The tender was of the Vanderbilt type.

Twelve J class locomotives were converted to oil burning and reclassified as J^B class, and the bullet nose streamlining was gradually removed.

[edit] Preserved Locomotive List

• J 1211 - Mainline Steam
• J 1234 - Glenbrook Vintage Railway (leased from Steam Incorporated)
• J 1236 - Mainline Steam

[edit] External links

• NZR Steam locomotives - J class (4-8-2)

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See also: Motive power explanation; Multiple units and Railcars descriptions.