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Record: 10408 (31/12/2024)
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SR Bulleid "WCBB" Class 4-6-2
Class Types
SR Class |
WCBB |
General
Designer |
Oliver Bulleid |
Introduced |
1945 |
Grouping Company |
Southern Railway |
Wheel Arrangement |
4-6-2 |
Number Built as WCBB |
110 |
First in Service |
06/1945 |
Last in Service |
07/1967 |
Manufacturers |
|
|
|
|
Power
|
Original Casing |
Rebuilds |
Variant Introduced |
1945 |
1957 |
Tractive Effort |
31,000lbs |
27,720lbs |
Inside Cylinders |
16.375" x 24" (1 off) |
16.375" x 24" (1 off) |
Inside Valves |
10"Piston |
? |
Inside Motion |
Bulleid Chain |
Walschaerts |
Outside Cylinders |
16.375" x 24" (2 off) |
16.375" x 24" (2 off) |
Outside Valves |
10"Piston |
? |
Outside Motion |
Bulleid Chain |
Walschaerts |
Wheels
|
Original Casing |
Rebuilds |
Pony |
3' 1" |
As Original Casing |
Drivers |
6' 2" |
As Original Casing |
Truck |
3' 1" |
As Original Casing |
Locomotive Wheelbase |
35' 6" |
As Original Casing |
Descriptive Wheelbase |
6' 3" + 5' 6" + 7' 6" + 7' 3" + 9' 0" = 35' 6" (engine only) |
As Original Casing |
Dimensions
|
Original Casing |
Rebuilds |
Length (over buffers) |
67' 43⁄4" |
As Original Casing |
Weight (in running order) |
128t 12cwt |
134t 8cwt |
Weight (loco only) |
86t 0cwt |
91t 16cwt |
Adhesive Weight |
56t 5cwt |
As Original Casing |
Maximum Axle Load |
18t 15cwt |
As Original Casing |
Water Capacity |
4,500gal |
As Original Casing |
Coal Capacity |
5t 0cwt |
As Original Casing |
Boiler & Firebox
|
Original Casing |
Rebuilds |
Boiler Max Diameter |
6' 31⁄2" |
As Original Casing |
Boiler Min Diameter - tapered boiler |
5' 93⁄4" |
As Original Casing |
Boiler Barrel Length |
16' 91⁄2" |
As Original Casing |
Boiler Pressure |
280lbs |
As Original Casing |
Firebox Type |
Belpaire |
As Original Casing |
Firebox Length |
6' 11" |
As Original Casing |
Firebox Grate Area |
38.75ft2 |
As Original Casing |
Firebox Heating Surface |
253ft2 |
As Original Casing |
Tube Number |
112 |
As Original Casing |
Tube Diameter |
21⁄4" |
As Original Casing |
Tube Area |
1121ft2 |
As Original Casing |
Flue Elements |
32 |
As Original Casing |
Flue Diameter |
51⁄4" |
As Original Casing |
Flue Area |
748ft2 |
As Original Casing |
Total Evaporative Area |
2122ft2 |
As Original Casing |
Superheater Element Area |
545ft2 |
As Original Casing |
Total Heating Area |
2667ft2 |
As Original Casing |
|