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GNR Class O1








GNR Class O1


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GNR O1 class
LNER O1 (later O3) Class

Immingham Locomotive Depot geograph-2463746-by-Ben-Brooksbank.jpg
No. 3491 at Immingham Locomotive Depot 1947











Type and origin
Power typeSteam
DesignerNigel Gresley
Builder

  • Doncaster Works (5)


  • North British Locomotive Co. (15)

Build date1914–1919
Total produced20












































Specifications
Configuration:
 • Whyte
2-8-0
 • UIC
1′D h2
Gauge
4 ft 8 12 in (1,435 mm)
Leading dia.3 ft 2 in (965 mm)
Coupled dia.4 ft 8 in (1,422 mm)
Length60 ft 11.5 in (18.580 m)
Loco weight76.2–78.65 long tons (77.42–79.91 t)
Fuel typeCoal
Firebox:
 • Firegrate area
27 sq ft (2.5 m2)
Boiler:
 • Diameter5 ft 6 in (1,680 mm)
Boiler pressure180 lbf/in2 (1.24 MPa)
Heating surface2,084 sq ft (193.6 m2)
 • Firebox162 sq ft (15.1 m2)
Superheater:
 • Type24
 • Heating area570 sq ft (53 m2)
CylindersTwo, outside
Cylinder size21 in × 28 in (533 mm × 711 mm)
Valve gearWalschaerts
Valve type10-inch (254 mm) piston valves


Performance figures
Tractive effort33,735 lbf (150.06 kN)










Career
Operators
  • Great Northern Railway (Great Britain)

  • London and North Eastern Railway

  • British Railways

Power class8F
Axle load class
Route availability 6
Withdrawn1947–1952
DispositionAll scrapped

The Great Northern Railway (GNR) Class O1 was a class of two-cylinder 2-8-0 steam locomotive designed by Nigel Gresley for heavy freight work and built by the GNR between 1913 and 1919.




Contents





  • 1 History


  • 2 British Railways


  • 3 References


  • 4 External links




History[edit]


Gresley designed the O1 2-8-0 for the heavy coal trains on the mainline from Grantham to London, ordering five examples 1913, which were completed at Doncaster in 1914. A further fifteen were ordered in January 1916, but due to the First World War delays were incurred and construction was transferred to the North British Locomotive Company, who delivered the first ten in April 1918, followed by a further five in October and November 1919.







































Table of orders and numbers
YearOrderManufacturerSerial numberQuantityGNR Nos.LNER Nos.LNER 1944 Nos.Notes
1913–14EO 274Doncaster Works1411–1413, 1415, 14185456–4603456–34603475–3479
1919
North British Locomotive Co.
(Hyde Park Works)
22060–2206910462–4713462–34713480–3489
1919
North British Locomotive Co.
(Atlas Works)
22099–221035472–4763472–34763490–3494

The class was re-designated O3 by the London and North Eastern Railway in 1944.



British Railways[edit]


Seventeen examples survived into British Railways ownership in 1948, but all had been withdrawn by 1952.

































Table of withdrawals
YearQuantity in
service at
start of year
Quantity
withdrawn
Locomotive numbersNotes
19472033487, 3490, 3492
19481723489, 3494
195015163491
1951141063475/77–81/83/85/86/93
19524463476, 63482, 63484, 63488


References[edit]





  • Boddy, M. G.; Brown, W. A.; Neve, E.; Yeadon, W. B. (November 1983). Fry, E. V., ed. Locomotives of the L.N.E.R., Part 6B: Tender Engines—Classes O1 to P2. Kenilworth: RCTS. ISBN 0-901115-54-1..mw-parser-output cite.citationfont-style:inherit.mw-parser-output qquotes:"""""""'""'".mw-parser-output code.cs1-codecolor:inherit;background:inherit;border:inherit;padding:inherit.mw-parser-output .cs1-lock-free abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .cs1-lock-limited a,.mw-parser-output .cs1-lock-registration abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .cs1-lock-subscription abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registrationcolor:#555.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration spanborder-bottom:1px dotted;cursor:help.mw-parser-output .cs1-hidden-errordisplay:none;font-size:100%.mw-parser-output .cs1-visible-errorfont-size:100%.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-formatfont-size:95%.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-leftpadding-left:0.2em.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-rightpadding-right:0.2em


External links[edit]


  • LNER encyclopedia





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