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GER/LNER Hill "Y4" Class 0-4-0T

Class Types
GER Class B74
LNER Class Y4

Designer Hill
Introduced 1913
Pre-Grouping Great Eastern Railway
Big Four London and North Eastern Railway
Description (1957) Class Y4. G.E.R. Hill 0-4-0T's, a class of five engines built between 1913 and 1920. No. 68129 is now renumbered D33.
Wheels 0-4-0T
Number Built as Y4 5
Number Scrapped 5
First in Service 07/1913
Last in Service 12/1963
Stratford Works 5

Variant Introduced 1913
Tractive Effort 19,224lbs
Outside Cylinders 17" x 20" (2 off)
Outside Valves Slide
Outside Motion Walschaerts

Drivers 3' 10"
Total Wheelbase 6'
Descriptive Wheelbase 6' 0"

Length (over buffers) 24' 112"
Weight (in running order) 38t 1cwt
Maximum Axle Load 19t 1cwt
Water Capacity 750gal
Coal Capacity 0t 15cwt

Boiler & Firebox
Boiler Diagram 40
Boiler Max Diameter 4' 2"
Boiler Barrel Length 9' 1"
Boiler Pressure 180lbs
Boiler Pitch 7'
Firebox Length 5' 3"
Firebox Grate Area 13.9ft2
Firebox Heating Surface 75.1ft2
Tube Number 226
Tube Diameter 158"
Tube Area 905.4ft2
Total Evaporative Area 980.5ft2
Total Heating Area 980.5ft2