skip to content

#0258

NBR 224 and 420 Classes

🇬🇧 United Kingdom ·built by Cowlairs railway works· from 1871· two classes of 2 and 4 British 4-4-0 locomotives

NBR 224 and 420 Classes, photo 1 of 1
1/1 Original author/artist E.L. Ahrons (d. 30 March 1926). Scan by Redrose64 , 19 July 2011· Public domain

what is it?

The NBR 224 and 420 Classes consisted of six steam locomotives of the 4-4-0 wheel arrangement built by the North British Railway (NBR) in 1871 and 1873. No. 224 had three claims to fame: it was the first inside-cylinder 4-4-0 engine to run in Great Britain; it was the locomotive involved in the Tay Bridge disaster; and after rebuilding in 1885, it was the only compound-expansion locomotive on the NBR, and one of just three tandem compounds in Britain.

who runs it

base stats

  • built 6made 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 155 years ago, in 1871.
  • Served for 48 years (1871–1919).

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

spec sheet

built
1871–1873
in service from
1871
retired
1919
status
retired
number built
6
kind
Steam
traction
steam
origin
🇬🇧 United Kingdom
builders
Cowlairs railway works
designer
Thomas Wheatley
operators
North British Railway
top speed
—
power
—
gauge
1,435 mm standard gauge
wheel arrangement
4-4-0

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

Sources: Wikidata Q6952850, Wikipedia: NBR 224 and 420 Classes (CC BY-SA 4.0).Updated 2026-10-25.

stan runge 7f71e88 source