Class O1

Class Details
Thomson 2-cylinder rebuilds from Robinson class O4.
Weight 73 tons 6; Pressure: 225psi; Cyls: 20x26; DW: 4 ft 8; TE: 35,520 lbs.
Thomson rebuild of Class O4 engines.

BR #LNER #Great Northern Railway #NameBuiltWdrn1950 shedLast shedNotesPhotos
635716224Oct 1912Dec 196438B41H - Staveley(GC)Rebuilt to O1 as number 63571 in Aug 1949.
2
635786231Nov1912Nov196238B38B - AnneselyRebuilt from O4.
635906243Dec1912Jul 196539A41J - Langwith Jct.Rebuilt from O4.
635916244Dec1912Nov 196239A38B - AnneselyRebuilt from O4.
2
635926245Dec1912Jul 196339A41H - Staveley(GC)Rebuilt from O4.
1
635936246Dec1912Oct 196540B36A - DoncasterRebuilt from O4.
635946247Dec1912Apr 196438B41H - Staveley(GC)Rebuilt from O4.
636105385Dec1913Nov 196238B38B - AnneselyRebuilt from O4.
1
636195394Apr1914Oct 196339A41H - Staveley(GC)Rebuilt from O4.
636306555Feb1918Jun 196539A41J - Langwith Jct.Rebuilt from O4.
1
636466374Feb1918Jul 196538B41J - Langwith Jct.Rebuilt from O4.
1
636506545Mar1918Jun 196539A41J - Langwith Jct.Rebuilt from O4.
1
636526371Mar1918Nov 196339A41H - Staveley(GC)Rebuilt from O4.
2
636636359Aug1918Nov 196439A41H - Staveley(GC)Rebuilt from O4.
636706356Sep1917Jun 196439A41H - Staveley(GC)Rebuilt from O4.
636766350Nov1917Nov196253A38B - AnneselyRebuilt from O4.
636785408Nov1917Jul196339A41H - Staveley(GC)Rebuilt from O4.
1
636876324Feb1918Oct196338B31B - MarchRebuilt from O4.
1
636896341Mar1918Nov196238B38B - AnneselyRebuilt from O4.
637116317Jan1919Apr196439A38B - AnneselyRebuilt from O4.
637126334Jan1919Nov196253A52H - Tyne DockRebuilt from O4.
2
637256328Aug1919Jul196539A41E - Staveley(Barrow Hill)Rebuilt from O4.
637406566Oct1917Nov196253A38B - AnneselyRebuilt from O4.
637526575Dec1917Nov196238B38B - AnneselyRebuilt from O4.
637556578Nov1917Nov196253A52H - Tyne DockRebuilt from O4.
1
637606579Feb1918Nov196253A52H - Tyne DockRebuilt from O4.
637686513Mar1918Jul196541J - Langwith Jct.Rebuilt from O4.
637736514Jan1918Oct196439A41H - Staveley(GC)Rebuilt from O4.
637776504May1918Oct196239A16D - AnneselyRebuilt from O4.
637806505May1918Jul196339A31B - MarchRebuilt from O4.
637846507May1918Aug196339A41H - Staveley(GC)Rebuilt from O4.
1
637866515Jun1918Sep196439A41H - Staveley(GC)Rebuilt from O4.
637896216Jul1919Nov196239A16D - AnneselyRebuilt from O4.
637926283Feb1918Oct196238B16D - AnneselyRebuilt from O4.
637956595Feb1918Oct196338B41H - Staveley(GC)Rebuilt from O4.
2
637966596Mar1918Oct196239A16D - AnneselyRebuilt from O4.
1
638036220Apr1918Mar196338B31B - MarchRebuilt from O4.
638066663May1918Nov196238B38B - AnneselyRebuilt from O4.
638086519May1918Nov196238B38B - AnneselyRebuilt from O4.
1
638176263Jul1918Nov196239A38B - AnneselyRebuilt from O4.
638546526Jun1919Nov196239A16D - AnneselyRebuilt from O4.
638566617Jun1919Nov196253A52H - Tyne DockRebuilt from O4.
2
638636533Aug1919Jun196538B41E - Staveley(Barrow Hill)Rebuilt from O4.
638656535Aug1919Nov196239A16D - AnneselyRebuilt from O4.
1
638676624Aug1919Nov196238B16D - AnneselyRebuilt from O4.
638686625Aug1919Jul196538B41J - Langwith Jct.Rebuilt from O4.
638696626Aug1919Nov196238B16D - AnneselyRebuilt from O4.
638726525May1919Jan196439A41H - Staveley(GC)Rebuilt from O4.
1
638746630May1919Nov196253A52H - Tyne DockRebuilt from O4.
1
638796288Jul1919Jul196538B41E - Staveley(Barrow Hill)Rebuilt from O4.
638866635Sep1919Oct196239A38B - AnneselyRebuilt from O4.
1
638876636Sep1919Mar196339A41H - Staveley(GC)Rebuilt from O4.
638906639May1919Mar196339A31B - MarchRebuilt from O4.
639016642Dec1919Nov196238B38B - AnneselyRebuilt from O4.
1

Number of locomotives logged in this class is 54.

Number of locomotives with photos available in this class: 22.