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#2924

LNER Thompson/Peppercorn Class K1

🇬🇧 United Kingdom ·built by North British Locomotive Company· from 1949· class of 70 British 2-6-0 locomotives

🚂 steam locomotive steam preserved
10 photos from Wikimedia Commons · credits & licences
  1. 1. Thompson 5P6F 2-6-0 K1 class number 62005: David Ingham· CC BY-SA 2.0
  2. 2. LNER Class J27 No. 65880 and LNER Class K1 No. 62004 in Darlington Works (cropped): Bärtschi, Hans-Peter· CC BY-SA 4.0
  3. 3. LNER Class J27 No. 65880 and LNER Class K1 No. 62004 in Darlington Works: Bärtschi, Hans-Peter· CC BY-SA 4.0
  4. 4. 62005 - Glenfinnan Viaduct: 96tommy· CC BY 2.0
  5. 5. 62005 At Crianlarich: ARG_Flickr· CC BY 2.0
  6. 6. 62005 at Pickering (8650304418): Thomas's Pics· CC BY 2.0
  7. 7. 62005 blow off (8650302724): Thomas's Pics· CC BY 2.0
  8. 8. 62005 Lord of the Isles Tyseley (1): Tony Hisgett from Birmingham, UK· CC BY 2.0
  9. 9. LNER Peppercorn K1 62001 (8277747169): Hugh Llewelyn· CC BY-SA 2.0
  10. 10. LNER Peppercorn K1 62065 (8278807248): Hugh Llewelyn· CC BY-SA 2.0
Read about it on Wikipedia ↗
LNER Thompson/Peppercorn Class K1, photo 1 of 10
1/10 David Ingham· CC BY-SA 2.0

what is it?

The London and North Eastern Railway (LNER) Class K1 is a type of 2-6-0 "Mogul" steam locomotive designed by Edward Thompson. Thompson preferred a simple two-cylinder design instead of his predecessor Nigel Gresley's three-cylinder one. The seventy K1s were intended to be split between the North Eastern Region of British Railways and the Eastern Region of British Railways.

who runs it

British RailEastern Region of British RailwaysNorth Eastern Region of British RailwaysScottish Region of British Railways

base stats

  • built 70made 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 77 years ago, in 1949.
  • 18 m long: about 4 cars parked nose to tail.
  • Served for 18 years (1949–1967).

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

spec sheet

built
1949–1950
in service from
1949
retired
1967
status
preserved
number built
70
kind
Steam
traction
steam
origin
🇬🇧 United Kingdom
builders
North British Locomotive Company
designer
E. Thompson; A. H. Peppercorn
operators
British Rail, Eastern Region of British Railways, North Eastern Region of British Railways, Scottish Region of British Railways
top speed
—
power
—
wheel arrangement
2-6-0
length
18 m

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

Sources: Wikidata Q6459311, Wikipedia: LNER Thompson/Peppercorn Class K1 (CC BY-SA 4.0).Updated 2026-10-25.

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