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GNR/LNER Ivatt "Q1" Class 0-8-0


Class Types
GNR Class K1
LNER Class Q1

General
Designer Ivatt
Introduced 1901
Pre-Grouping Great Northern Railway
Big Four London and North Eastern Railway
Wheels 0-8-0
Number Built as Q1 50
Number Scrapped 50
First in Service 02/1901
Last in Service 10/02/1937
Manufacturers
ManufacturerTotal
Doncaster Works 50
Orders
BuilderOrder #DateSize
Doncaster Works 226 04/1900 1
Doncaster Works 229 06/1901 10
Doncaster Works 231 01/1902 10
Doncaster Works 233 10/1902 19
Doncaster Works 247 01/1906 5
Doncaster Works 259A 01/1909 5

Power
Q1 Sat Superheated
Variant Introduced 1901 1908
Tractive Effort 27,650lbs 26,835lbs
Inside Cylinders 20" x 26" (2 off)
As Q1 Sat
Inside Valves Slide
As Q1 Sat
Inside Motion Stephenson
As Q1 Sat

Wheels
Q1 Sat Superheated
Drivers 4' 8"
As Q1 Sat
Locomotive Wheelbase 17' 8"
As Q1 Sat
Tender Wheelbase 13'
As Q1 Sat
Total Wheelbase 41' 4"
As Q1 Sat
Descriptive Wheelbase 6' 0" + 5' 8" + 6' 0" (+ 10' 8") + 6' 6" + 6' 6" = 41' 4"
As Q1 Sat

Dimensions
Q1 Sat Superheated
Length (over buffers) 54' 712" 55' 412"
Weight (in running order) 95t 10cwt 96t 12cwt
Weight (loco only) 54t 12cwt 55t 14cwt
Maximum Axle Load 14t 19cwt 15t 0cwt
Water Capacity 3,670gal
As Q1 Sat
Coal Capacity 5t 0cwt
As Q1 Sat

Boiler & Firebox
Q1 Sat Superheated
Boiler Pitch 8' 414"
As Q1 Sat