GNR Class H4

what is it?

The Great Northern Railway Class H4 (classified K3 by the LNER) was a class of 2-6-0 steam locomotive designed for mixed-traffic work. The type was a more powerful development of the earlier H3 (LNER K2) class and was notable at the time, as the 6-foot-diameter (1.8 m) boilers were the largest fitted to any British locomotive to that date. After formation of the London and North Eastern Railway, the type became known as class K3 and was adopted as an LNER standard design.

who runs it

GNGreat Northern RailwayLondon and North Eastern RailwayBritish RailEREastern Region of British Railways

base stats

• built 193made in total

Bars compare against all trains: 600 km/h (maglev), 1,700 seats; power, weight and number built on a log scale up to 20 MW, 1,000 t and 20,000 built.

fun facts

• 🎂First built 106 years ago, in 1920.
• ⌛Served for 42 years (1920–1962).

steam locomotive: Burns coal, wood or oil to boil water; the steam drives pistons that turn the wheels.

spec sheet

built

1920–1937

in service from

1920

retired

1962

status

retired

number built

193

kind

Steam

traction

steam

origin

🇬🇧 United Kingdom

builders

Doncaster Works, Armstrong Whitworth, Robert Stephenson and Company, North British Locomotive Company, Darlington Works

designer

Nigel Gresley

operators

Great Northern Railway, London and North Eastern Railway, British Rail, Eastern Region of British Railways

top speed

—

power

—

gauge

1,435 mm standard gauge

wheel arrangement

2-6-0

nicknames

Jazzers

From the Wikipedia infobox and Wikidata. Blank means the sources don't say.