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Record: 10235 (26/09/2023)
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NBR/LNER Reid "D33" Class 4-4-0


Class Types
NBR Class K
LNER Class D33

General
Designer William Reid
Introduced 1909
Pre-Grouping Company North British Railway
Grouping Company London and North Eastern Railway
Description (1957) Class D33 of 12 engines built 1909-10. The last survivor was scrapped in 1953.
Wheel Arrangement 4-4-0
Number Built as D33 12
Number Scrapped 12
First in Service 10/1909
Last in Service 09/1953
Manufacturers
ManufacturerTotal
Cowlairs Works 12
Orders
BuilderSponsorOrder #DateSize
Cowlairs Works  n/a 1909 12

Power
Variant Introduced 1909
Tractive Effort 21,053lbs
Inside Cylinders 19" x 26" (2 off)
Inside Valves 8.75"Piston
Inside Motion Stephenson

Wheels
Pony 3' 6"
Drivers 6'
Locomotive Wheelbase 23' 7"
Tender Wheelbase 13' 6"
Total Wheelbase 46' 812"
Descriptive Wheelbase 6' 6" + 7' 7" + 9' 6" + 9' 7½" + 6' 9" + 6' 9" = 46' 8½"

Dimensions
Length (over buffers) 56' 3"
Weight (in running order) 98t 13cwt
Weight (loco only) 54t 1cwt
Water Capacity 4,235gal

Boiler & Firebox
Boiler Diagram 78
Boiler Max Diameter 5'
Boiler Barrel Length 11' 4"
Boiler Pressure 165lbs
Boiler Pitch 8' 212"
Firebox Type Round Top
Firebox Length 6' 812"
Firebox Grate Area 21.13ft2
Firebox Heating Surface 139.7ft2
Tube Number 124
Tube Diameter 178"
Tube Area 677.04ft2
Flue Elements 22
Flue Diameter 5"
Flue Area 192.92ft2
Total Evaporative Area 1153.14ft2
Superheater Element Area 192.92ft2
Total Heating Area 1346.06ft2