GWR No.5972 "Olton Hall"
5972 Hogwarts Castle at NRM York
Olton Hall in "Hogwarts Castle" guise.

Years built



Charles Collett
Swindon Works, Swindon, Wiltshire

Number Produced


Years in Operation


Fleet Numbers




Number Preserved


Number Scrapped


l x w x h)



4 ft 8 1⁄2 in (1,435 mm)

V - E - T - D

No.5972 or Olton Hall is a 4-6-0 Hall Class steam locomotive made by GWR.


Olton Hall was built on April 30th, 1937. It went to Neath, South Wales first, then was moved in August 1950 to Carmarthen. Then the locomotive was fitted with a three row superheater at the Swindon railway works, of which it was built. After that, it was moved again to Plymouth. Lastly, the locomotive was allocated to the Cardiff East Dock, before being withdrawn from service on December 31st, 1963. Olton Hall was sold to Woodham Brothers Ltd. (scrap yard) in Barry Island, Wales.

Luckily it was then sold on to Procor Ltd in Wakefield (Horbury Railway Works). Olton Hall was based at the National Railway Museum in Shildon.

As of 2015, the locomotive remains on static display at The Harry Potter Museum within the Warner Bros. Studios, Leavesden, near Watford and will remain there in the museum for two years.[1]

"Hogwarts Express"Edit

Hogwarts Express (Philosopher's Stone) v2

Screen-capture of the "Olton Hall" as it appeared in Harry Potter and the Philosopher's Stone as the "Hogwarts Express".

In the Harry Potter films no.5972 plays the part of the Hogwarts Express locomotive. The locomotive that takes students from platform 9¾ at Kings Cross station to Hogsmead station (Hogwarts). For these duties Olton Hall was renamed "Hogwarts Castle" though retains the GWR number. The locomotive also got a "Hogwarts Express" headboard for the filming. This role in the movies has made the locomotive famous. 200 Rare 00 Gauge Hornyby Models were realeased of the Hogwarts Express.


Olton Hall weighs 75 long tons, and its 2 cylinders are feed by a superheater. Its driving wheels are 60 inches in diameter, and its carrying wheels are 36 inches in diameter. The boiler has a maximum of 225 lbf/in2, and the locomotive makes 27,275 lbf of tractive effort.

The tender weighs 46 long tons, and takes 4000 imperial gallons of water.


  • Olton Hall is painted maroon (red), which is not a standard color for GWR. The traditional color for GWR was Brunswick Green.
  • Olton Hall was renamed to "Hogwarts Castle" for the films. This name would make the locomotive a Castle Class not a Hall Class which it is. This also led to Hornby making their model a Castle Class. There are many jokes floating around about the renaming such as, 'The Hall that wish to be a Castle.'



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