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GNR/LNER Ivatt "J1" Class 0-6-0

**Class Types**
GNR Class	J21
LNER Class	J1

General

Designer

Henry Ivatt

Introduced

1908

Pre-Grouping Company

Great Northern Railway

Grouping Company

London and North Eastern Railway

Description (1957)

Class J1. Ivatt mixed traffic 0-6-0's with 5'8" wheels, originally 15 engines built in 1908. Nos. 5000/1,5011/2 were broken up in 1947, while the last of the class, No. 65013, was scrapped in 1954. Engine No. 5000 was formerly G.N.R. No. 1.

Wheel Arrangement

0-6-0

Number Built as J1

First in Service

08/1908

Last in Service

22/11/1954

Manufacturers

Manufacturer	Total
Doncaster Works	15

Orders

Builder	Sponsor	Order #	Date	Size
Doncaster Works		256	07/1908	15

Classification

Southern Area 2

Route Availability

BR Power Class

2MT

Engine Diagrams

Diagram	Details
Section N, 1924	3,500 gallon tender
Section N, 1938	3,170 gallon tender and revised heating surface figures

**Illustration**

Copyright: John Law

**Power**
Variant Introduced	1908
Tractive Effort	18,427lbs
Inside Cylinders	18" x 26" (2 off)
Inside Valves	Slide
Inside Motion	Stephenson

**Wheels**
Drivers	5' 8"
Locomotive Wheelbase	16' 3"
Tender Wheelbase	13'
Total Wheelbase	37' 8"
Descriptive Wheelbase	7' 3" + 9' 0", 7' 0" + 6' 0"

**Dimensions**
Length (over buffers)	50' 5¹⁄₂"
Weight (in running order)	46t 14cwt
Maximum Axle Load	17t 4cwt
Water Capacity	3,500gal
Coal Capacity	6t 10cwt

**Boiler & Firebox**
Boiler Diagram	7Sat
Boiler Max Diameter	4' 8"
Boiler Barrel Length	10' 1"
Boiler Pressure	175lbs
Boiler Pitch	8' 0⁵⁄₈"
Firebox Length	6' 4"
Firebox Grate Area	19ft²
Firebox Heating Surface	120ft²
Tube Number	238
Tube Diameter	1³⁄₄"
Tube Area	1130ft²
Total Evaporative Area	1250ft²

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GNR/LNER Ivatt "J1" Class 0-6-0