LNER B17 Class 61673 Spirit of Sandringham

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LNER 61673 Spirit of Sandringham
61673 'Spirit of Sandringham' Mainframe Llangollen Railway, Spring 2019.jpg
61673 'Spirit of Sandringham's mainframe at the Llangollen Railway complete, 24/02/2019.
Type and origin
Power typeSteam
Designer Nigel Gresley (original designer)
BuilderB17 Steam Locomotive Trust
Specifications
Configuration:
   Whyte 4-6-0
Gauge 4 ft 8+12 in (1,435 mm) standard gauge
Leading dia. 3 ft 2 in (0.965 m)
Driver dia.6 ft 8 in (2.032 m)
Length62 ft 2 in (18.95 m)
Loco weight77.25–80.5 long tons (78.49–81.79 t; 86.52–90.16 short tons)
Fuel type Coal
Boiler pressure225 psi (1.55 MPa)
Cylinders Three
Cylinder size 17+12 in × 26 in (444 mm × 660 mm)
Valve gear Outside: Walschaerts
Inside: Gresley conjugated
Valve type8-inch (203 mm) piston valves
Train heatingSteam Heat
Loco brake Vacuum + Air
Performance figures
Maximum speed75mph
Tractive effort 28,553 lbf (127.0 kN)
Career
Power class6P5F
Axle load classBR: Route Availability 9
DispositionUnder Construction

61673 "Spirit of Sandringham" is an LNER B17 class 4-6-0 steam locomotive which is being built by the B17 Steam Locomotive Trust. No original Gresley B17 Class locomotives were preserved, so Spirit of Sandringham is being built as the next member of the class, similar to that of 60163 Tornado.

Contents

Construction of 61673 started at the workshops of the Llangollen Railway, but with the closure of the latter's engineering business in 2020, the completed mainframes were moved to the workshops of CTL Seal LTD in Sheffield in October 2020. [1] [2] [3]

Spirit of Sandringham will be completed to mainline standards, being capable of hauling railtours on the UK national network and available to visit heritage railways. [4]

Background

The original B17's were built from 1928 to 1937 with the construction of the seventy three engines being split between :- North British Locomotive Company, Darlington Works & Robert Stephenson and Company.

By 1960, withdrawal of the class was well underway with only seventeen remaining in service at the start of the year. The final original B17 to be withdrawn was No.61668 Bradford City, which was withdrawn in August 1960 and cut up not long after.

The longest working life of a B17 was 31 years by No.61608 Gunton & the shortest being 21 years for No.61667 Bradford.

It was announced in Steam Railway magazine issue 349, on 1 May 2008 that a group planned to built two B17's (one being a replica of 61662 "Manchester United" while the other would be numbered 61673 and given the name "Spirit of Sandringham". [5] [6]

No. 61673's construction was first being undertaken in Llangollen by the B17 Steam Locomotive Trust while the replica engine was being built at a private site by the 61662 appeal. In November 2020 it was announced that the 61662 project was being terminated.

With the cessation of the Llangollen Railway's engineering business in 2020, the frames of 61673 were moved to CTL Seal LTD in Sheffield in October 2020, for construction to continue. [7]

Name, number and liveries

A small number of B17's wore the LNER's famous Apple green livery as well as NE unlined and lined black, and for a brief period one even emerged in LNER Apple Green with British Railways lettering on the tender. However B17's were mainly seen in BR green with either the early emblem (pre 1956) or the later crest (post 1956). It's not yet known which livery the completed engine will wear first and it's expected that a decision will be reached near to when the engine is completed.

Project milestones

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References

  1. "CTL Seal - The Seal of Quality Engineering". www.ctlseal.co.uk. Retrieved 16 November 2023.
  2. "Llangollen to Sheffield - An update on steam locomotive 61673 Spirit of Sandringham". RailAdvent. 3 September 2020. Retrieved 16 November 2023.
  3. says, Caesar (22 October 2020). "Steam locomotive 61673 Spirit of Sandringham arrives in Sheffield". RailAdvent. Retrieved 16 November 2023.
  4. "An update on steam locomotive 61673 Spirit of Sandringham". RailAdvent. 17 December 2019. Retrieved 16 November 2023.
  5. Hewitt, Sam (16 January 2019). "The Spirit of Sandringham | Heritage Railway Magazine" . Retrieved 16 November 2023.
  6. Hewitt, Sam (19 December 2017). "Two new B17s make progress | Heritage Railway Magazine" . Retrieved 16 November 2023.
  7. "Steam locomotive 61673 Spirit of Sandringham arrives in Sheffield". RailAdvent. Retrieved 31 December 2022.