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11230

5 inch gauge GNR Atlantic

A 5 inch gauge GNR large-boilered Atlantic, Ivatt's seminal design marking the start of the railway's "Big Engine" policy. A total of 94 locomotives were built between 1902 and 1910, with one survivor - No.251 - preserved in the National Collection.

More commonly seen in 3 1/2 inch gauge to LBSC's ever-popular "Maisie" design, it makes for a handsome, rather rare engine in the larger gauge.

An older engine, this one came to us along with a 9F from a long-time customer. Since arriving we've rebushed the motionwork where required - it now runs very quietly - fitted a new injector and serviced the safety valves.

The boiler had had hydraulic and steam tests with new certification issued.

The engine steams very freely and runs particularly well in both directions with crisp, square beats, keeping itself in steam on the rolling road without need of the blower.

Paintwork is good in the main, with some age-related wear - minor re-touching over the winter would repay the effort involved.


Technical information

Stock code

11230

Gauge

5 inch

Length/inches

39 + 24

Width/inches

10

Height/inches

15

Weight/Kg

77

Wheel material

cast iron

Axlebox type

plain bearing

Cylinder material

gunmetal

Valve type

slide

Valve gear

Stephensons

Reverser type

pole

Lubricator type

mechanical

Boiler type

locomotive

Boiler construction

silver soldered

Boiler material

copper

Working pressure

80

CE/UKCA mark

n/a - non-commercial

Boiler number

N75-80-37

Safety valve type

spring

Safety valve

2

Whistle

yes

Mechanical pump

1

Injector

1

Superheater type

flue tube

Superheater

5

Date out

Oct-23

Hydraulic test valid to

15-Mar-27

Steam test valid to

04-Nov-24

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