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LNER "U1" Class 2-8-8-2T


Class Types
LNER Class U1

General
Introduced 1925
Big Four London and North Eastern Railway
Description (1957) Class U1 Gresley 2-8-8-2T Garratt, built 1925 for banking on the Worsborough incline. In anticipation of it becoming redundant because of the electrification of the Wath-Penistone line (completed 1953), it was given trials in 1949 on the Lickey incline. The year 1955 saw its conversion to an oil burner, but it was finally withdrawn from traffic at the end of that year without being put into regular traffic.
Wheels 2-8-8-2T
Number Built as U1 1
Number Scrapped 1
First in Service 21/06/1925
Last in Service 23/12/1955
Manufacturers
ManufacturerTotal
Beyer Peacock Ltd. 1
Orders
BuilderOrder #DateSize
Beyer Peacock Ltd. 112 08/04/1924 1

Illustration
Copyright: Phil Seaford
Power
Tractive Effort 72,940lbs
Outside Cylinders 18.5" x 26" (6 off)
Outside Valves 8"Piston
Outside Motion Walschaerts/Gresley

Wheels
Pony 2' 8"
Drivers 4' 8"
Truck 2' 8"
Total Wheelbase 79' 1"
Descriptive Wheelbase 8' 8" + 6' 6" + 5' 8¼" + 5' 8¼" + 26' 0" + 5' 8¼" + 5' 8¼" + 6' 6" + 8' 8" = 79' 1"

Dimensions
Length (over buffers) 87' 3"
Weight (in running order) 178t 1cwt
Adhesive Weight 143t 18cwt
Maximum Axle Load 18t 6cwt
Water Capacity 5,000gal
Coal Capacity 7t 0cwt

Boiler & Firebox
Boiler Diagram 95
Boiler Notes Details apply post 10/1927 - prior to this date, this boiler had 20 more tubes, providing an extra 140.53 sq ft of heating surface.
Boiler Max Diameter 7'
Boiler Barrel Length 13' 778"
Boiler Pressure 180lbs
Boiler Pitch 8' 6"
Firebox Length 9' 5"
Firebox Grate Area 56.5ft2
Firebox Heating Surface 223.5ft2
Tube Number 239
Tube Diameter 2"
Tube Area 1678.97ft2
Flue Elements 45
Flue Diameter 514"
Flue Area 825ft2
Total Evaporative Area 2727.47ft2
Superheater Elements 45
Superheater Element Diameter 1.087"
Superheater Element Area 650ft2
Total Heating Area 3377.47ft2