The GNR Stirling G1 0-4-4T Locomotives

Stirling designed three types of 0-4-4 tank engines for the GNR. Two of these survived into LNER ownership as the LNER G1 and G2 classes, whilst one member of the third class survived in the form of a crane tank. The G1s were built after the G2s, and 29 were constructed between 1889 and 1895. The last four were built with shorter side tanks, with some of the water being carried in a back tank over the bogie. There were built for working the Metropolitan Widened Lines, but all were moved to country branch line work when the N1s were built from 1907 onwards. Nine survived to Grouping (1923), but all were withdrawn between 1924 and 1927.

All members of the G1 class were originally fitted with condensing equipment for working the London suburbs. This was removed when they were moved from London. The last G1s left the London area around 1907 when the N1s were introduced.

Between 1902 and 1919, all members of the G1 class were fitted with domeless Ivatt boilers. This required the width of the frames to be expanded by about 2in. This was over such a long period, because most of the rebuilds were only performed when the original boilers were due for replacement.

Technical Details

The following dimensions describe the first 25 of the class, after their rebuilds with Ivatt boilers between 1902 and 1909. The original boilers were slightly smaller in diameter. The last four engines (with the short side tanks) also varied in detail.

Preservation

None of the G1s survived into preservation.

Models

I am not aware of any models of the G1 tank locomotives.

Acknowledgements

Thank you to Malcolm Peirson for the photograph of GNR No. 767 at Kings Cross.