LNER Class J38
Encyclopedia
The London and North Eastern Railway
Class J38 was a class of steam locomotive designed for freight work. They were designed by Nigel Gresley
and introduced in 1926. A total of 35 were built and they were used in Scotland
. All passed into British Railways ownership in 1948 and they were numbered 65900-65934.
The J39
was a later development, exchanging the J38's 4'8" driving wheel
s with larger 5'2", 289 J39s being built. Some of the J38s were later rebuilt with J39 boilers.
London and North Eastern Railway
The London and North Eastern Railway was the second-largest of the "Big Four" railway companies created by the Railways Act 1921 in Britain...
Class J38 was a class of steam locomotive designed for freight work. They were designed by Nigel Gresley
Nigel Gresley
Sir Herbert Nigel Gresley was one of Britain's most famous steam locomotive engineers, who rose to become Chief Mechanical Engineer of the London and North Eastern Railway . He was the designer of some of the most famous steam locomotives in Britain, including the LNER Class A1 and LNER Class A4...
and introduced in 1926. A total of 35 were built and they were used in Scotland
Scotland
Scotland is a country that is part of the United Kingdom. Occupying the northern third of the island of Great Britain, it shares a border with England to the south and is bounded by the North Sea to the east, the Atlantic Ocean to the north and west, and the North Channel and Irish Sea to the...
. All passed into British Railways ownership in 1948 and they were numbered 65900-65934.
The J39
LNER Class J39
The London and North Eastern Railway Class J39 was a class of 0-6-0 steam locomotive designed for freight work. They were based on the previous Class J38 but with larger driving wheels....
was a later development, exchanging the J38's 4'8" driving wheel
Driving wheel
On a steam locomotive, a driving wheel is a powered wheel which is driven by the locomotive's pistons...
s with larger 5'2", 289 J39s being built. Some of the J38s were later rebuilt with J39 boilers.
Dimensions
- BR Power classification, 6F
- LocomotiveSteam locomotiveA steam locomotive is a railway locomotive that produces its power through a steam engine. These locomotives are fueled by burning some combustible material, usually coal, wood or oil, to produce steam in a boiler, which drives the steam engine...
weight, 58 tons 19 cwt - Tender weight, 44 tons 4 cwt
- BoilerFire-tube boilerA fire-tube boiler is a type of boiler in which hot gases from a fire pass through one or more tubes running through a sealed container of water...
pressure, 180 psi - SuperheaterSuperheaterA superheater is a device used to convert saturated steam or wet steam into dry steam used for power generation or processes. There are three types of superheaters namely: radiant, convection, and separately fired...
, Yes - CylindersCylinder (engine)A cylinder is the central working part of a reciprocating engine or pump, the space in which a piston travels. Multiple cylinders are commonly arranged side by side in a bank, or engine block, which is typically cast from aluminum or cast iron before receiving precision machine work...
, 20"x26" - Driving wheelDriving wheelOn a steam locomotive, a driving wheel is a powered wheel which is driven by the locomotive's pistons...
diameter, 4' 8" - Tractive effortTractive effortAs used in mechanical engineering, the term tractive force is the pulling or pushing force exerted by a vehicle on another vehicle or object. The term tractive effort is synonymous with tractive force, and is often used in railway engineering to describe the pulling or pushing capability of a...
, 28,415 lb - Valve gearValve gearThe valve gear of a steam engine is the mechanism that operates the inlet and exhaust valves to admit steam into the cylinder and allow exhaust steam to escape, respectively, at the correct points in the cycle...
, Stephenson (piston valves)