NER Class D explained

Powertype:Steam
Designer:Vincent Raven
Builder:NER Darlington
Builddate:1913, 1920—1922
Totalproduction:45
Whytetype:4-4-4T
Leadingdiameter:3feet
Driverdiameter:5feet
Trailingdiameter:3feet
Wheelbase:34inchesft6inchesin (ftin)
Locoweight:87.35LT
Fuelcap:4LT
Watercap:2000impgal
Cylindercount:three
Cylindersize:NaNx
Firearea:23square feet
Boilerpressure:160psi
Tubearea:654.24square feet
Fireboxarea:124square feet
Totalsurface:1252.974square feet
Fluearea:280.6square feet
Superheaterarea:194.13square feet
Superheatertype:Schmidt
Tractiveeffort:22940lbf
Valvegear:Stephenson
Operator:North Eastern Railway, London and North Eastern Railway
Retiredate:1931-1936
Disposition:All rebuilt to LNER Class A8

The North Eastern Railway Class D (later London and North Eastern Railway (LNER) Class H1) was a class of 4-4-4T three-cylinder side tank steam locomotive designed by Vincent Raven in 1913.[1] They were used for rural passenger services. Forty five were built in total; a first batch of twenty, then a further twenty five after the War.[2]

Between 1931 and 1936, all of the LNER H1 class were rebuilt with a 4-6-2T wheel layout and re-classified as A8.[3] They were scrapped between 1957 and 1960.[3]

Notes and References

  1. Book: Ahrons, E. L. . E.L. Ahrons . The British Steam Railway Locomotive 1825-1925 . 1927 . Locomotive Publishing Co. . Amen Corner, London . Ahrons, British Steam Railway Locomotive . 338.
  2. Web site: NER Raven H1 4-4-4T Locomotives . LNER Encyclopedia.
  3. Book: Locomotives of British Railways . H.C. . Casserley . H. C. Casserley . L.L. . Asher . Spring Books . 1961 . 1955 . Casserley & Asher, Locomotives of British Railways . 113, 472.