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NER/LNER Worsdell "N9" Class 0-6-2T


Class Types
NER Class N
LNER Class N9

General
Designer Worsdell
Introduced 1893
Pre-Grouping North Eastern Railway
Big Four London and North Eastern Railway
Description (1957) Class N8 & Class N9. Class N8 consisted originally of 62 engines, 5'1" 0-6-2T's, built by T. W. Worsdell in 1886-90 for the North Eastern. As first 134 constructed they were Worsdell-von Borries 2-cylinder compounds, but were later all converted to simples and some fitted with superheaters and/or piston valves. No. 69390 was the only locomotive of the class still running in 1956. Class N9 were 20 somewhat similar engines built new as simples 135 in 1893-94 by Wilson Worsdell, and all scrapped by 1955.
Wheels 0-6-2T
Number Built as N9 20
Number Scrapped 20
First in Service 05/1893
Last in Service 07/1955
Manufacturers
ManufacturerTotal
Darlington Works 20
Orders
BuilderOrder #DateSize
Darlington Works n/a 1893 20

Power
Variant Introduced 1893
Tractive Effort 20,840lbs
Inside Cylinders 19" x 26" (2 off)
Inside Valves Slide
Inside Motion Stephenson

Wheels
Drivers 5' 114"
Truck 3' 914"
Total Wheelbase 22' 6"
Descriptive Wheelbase 8' 0" + 8' 6" + 6' 0" = 22' 6"

Dimensions
Length (over buffers) 36' 1"
Weight (in running order) 56t 10cwt
Adhesive Weight 44t 18cwt
Maximum Axle Load 16t 4cwt
Water Capacity 1,500gal
Coal Capacity 2t 10cwt

Boiler & Firebox
Boiler Diagram 67 (Saturated)
Boiler Max Diameter 4' 3"
Boiler Barrel Length 10' 7"
Boiler Pressure 160lbs
Boiler Pitch 7' 512"
Firebox Length 6'
Firebox Grate Area 17.2ft2
Firebox Heating Surface 108ft2
Tube Number 205
Tube Diameter 134"
Tube Area 1025ft2
Total Evaporative Area 1133ft2
Total Heating Area 1133ft2