LNER Thompson Class A1/1

what is it?

The LNER Class A1/1 consisted of a single 4-6-2 "Pacific" express passenger locomotive rebuilt in 1945 from an A1 class locomotive, by Edward Thompson. It was intended as the prototype of a new design of pacific locomotives improving the A4 design of Thompson's predecessor Sir Nigel Gresley. No further examples were built due to Thompson's retirement in 1946.

who runs it

London and North Eastern RailwayBritish RailEREastern Region of British Railways

base stats

• built 1made 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 104 years ago, in 1922.
• 📏22.3 m long: about 5 cars parked nose to tail.
• ⌛Served for 17 years (1945–1962).

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

spec sheet

built

1922

in service from

1945

retired

1962

status

retired

number built

1

kind

Steam

traction

steam

origin

🇬🇧 United Kingdom

builders

Doncaster Works

designer

Edward Thompson

operators

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

top speed

—

power

—

gauge

1,435 mm standard gauge

wheel arrangement

4-6-2

length

22.3 m

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