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GNR/LNER Ivatt "J2" Class 0-6-0
Class Types
GNR Class |
J21 |
General
Designer |
Henry Ivatt |
Introduced |
1912 |
Pre-Grouping |
Great Northern Railway |
Big Four |
London and North Eastern Railway |
Description (1957) |
Class J2, a larger superheated version of class J1 built in 1912 after Gresley had succeeded Ivatt at Doncaster. Ten engines, wheel diameter 5'8", originally in class, No. 5024 having been scrapped in 1946. The last of the class was withdrawn in 1954. |
Wheels |
0-6-0 |
Number Built as J2 |
10 |
First in Service |
08/1912 |
Last in Service |
07/1954 |
Manufacturers |
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Orders |
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Power
Variant Introduced |
1912 |
Tractive Effort |
19,945lbs |
Inside Cylinders |
19" x 26" (2 off) |
Inside Valves |
8"Piston |
Inside Motion |
Stephenson |
Wheels
Drivers |
5' 8" |
Locomotive Wheelbase |
16' 3" |
Tender Wheelbase |
13' |
Total Wheelbase |
39' 5" |
Descriptive Wheelbase |
7' 3" + 9' 0" + 10' 2" + 7' 0" + 6' 0" |
Dimensions
Length (over buffers) |
52' 81⁄2" |
Weight (in running order) |
93t 12cwt |
Weight (loco only) |
50t 10cwt |
Maximum Axle Load |
18t 0cwt |
Water Capacity |
3,500gal |
Coal Capacity |
6t 10cwt |
Boiler & Firebox
Boiler Diagram |
7Sup |
Boiler Max Diameter |
4' 8" |
Boiler Barrel Length |
10' 1" |
Boiler Pressure |
170lbs |
Boiler Pitch |
8' 9" |
Firebox Length |
6' 4" |
Firebox Grate Area |
19ft2 |
Firebox Heating Surface |
120ft2 |
Tube Number |
118 |
Tube Diameter |
13⁄4" |
Tube Area |
562ft2 |
Flue Elements |
18 |
Flue Diameter |
51⁄4" |
Flue Area |
257ft2 |
Total Evaporative Area |
937ft2 |
Superheater Elements |
18 |
Superheater Element Diameter |
11⁄4" |
Superheater Element Area |
192ft2 |
Total Heating Area |
1129ft2 |
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