NZR J class (1939)

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NZR J class
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Disposition Withdrawn; 12 rebuilt, 3 preserved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 KA class but a noteworthy departure was the use of the Baker valve gear. The tender was of the Vanderbilt type.

The NZR J class was similar to the Norfolk and Western Railway class J.
Enlarge
The NZR J class was similar to the Norfolk and Western Railway class J.

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


[edit] Preserved Locomotive List

[edit] External links

New Zealand Rail Locomotives
Help: Motive power explained; Multiple units and Railcars described.