GWR 4073 Class 7029 Clun Castle

GWR 7029 Clun Castle
Clun Castle in 2017
Type and origin Power type Steam Designer Charles Collett Builder BR Swindon Works Build date May 1950
Specifications Configuration: ​  • Whyte 4-6-0 Gauge 4 ft 8+1⁄2 in (1,435 mm) Leading dia. 3 ft 2 in (0.965 m) Driver dia. 6 ft 8+1⁄2 in (2.045 m) Length 65 ft 2 in (19.86 m) over buffers Width 8 ft 11 in (2.718 m) Height 13 ft 1 in (3.988 m) (Cut back from 13 ft 4+1⁄2 in (4.077 m)) Loco weight 79 long tons 17 cwt (178,900 lb or 81.1 t) 89.4 short tons full Tender weight 47 long tons 6 cwt (106,000 lb or 48.1 t) 53.0 short tons full Fuel type Coal Fuel capacity 6 long tons 0 cwt (13,400 lb or 6.1 t) 6 long tons 0 hundredweight (6.10 t; 6.72 short tons) Water cap. 4,000 imp gal (18,000 L; 4,800 US gal) Firebox: ​  • Grate area 29.36 sq ft (2.728 m2) Boiler GWR Standard Number 8 Boiler pressure 225 lbf/in2 (1.55 MPa) Heating surface: ​  • Firebox 162.7 sq ft (15.12 m2) (Collett) 163.5 sq ft (15.19 m2) (Hawksworth)  • Tubes 1,857.7 sq ft (172.59 m2) (Collett) 1,799.5 sq ft (167.18 m2) (Hawksworth) Cylinders Four (two inside, two outside) Cylinder size 16 in × 26 in (406 mm × 660 mm) Valve gear Inside cylinders: Walschaerts Outside cylinders: derived from inside cylinders via rocking bars. Valve type Piston valves Loco brake Vacuum
Performance figures Maximum speed 25 mph - (heritage railways) 45 mph - (mainline, tender first) 75 mph - (mainline, chimney first) Tractive effort 31,625 lbf (140.68 kN)
Career Operators Great Western Railway British Railways Power class GWR: D BR: 7P Axle load class GWR: Red Withdrawn December 1965 Current owner Tyseley Locomotive Works Disposition Operational, Mainline Certified

GWR 4073 Class No. 7029 Clun Castle is a 4-6-0 steam locomotive built at Swindon Works in May 1950 to a design by Charles Collett for operation on the Western Region of British Railways. It was named after Clun Castle in Shropshire.

British Railways

Its first shed allocation was Newton Abbot. It had a double chimney and a four-row superheater fitted in October 1959. Its most famous moment came on 9 May 1964 on the Plymouth to Bristol leg of a special train marked Z48, which ran to mark the record set sixty years earlier by City of Truro. Number 4073 managed to reach 96 mph on the descent of Wellington Bank in Somerset. Preserved classmate 4079 Pendennis Castle, which worked the Paddington to Westbury leg of the tour before melting its firebars, has also been preserved. Its last shed allocation was at Gloucester in May 1965. It hauled the last official steam train out of Paddington to Banbury on 11 June 1965. It was officially withdrawn in December that year.

Shed allocations

Location	Shed code	From
Newton Abbot	83A	31 May 1950
Plymouth Laira	83D	29 December 1956
Newton Abbot	83A	23 March 1957
Old Oak Common	81A	2 July 1962
Gloucester Horton Road	85B	5 October 1964

Preservation

Sold for scrap at £2,400 to Patrick Whitehouse in 1966, its ownership then passed to 7029 Clun Castle Ltd. In preservation, it has been based at Tyseley TMD, now Tyseley Locomotive Works.

In 1967, carrying a Great Western livery, it hauled trains to mark closure of the GWR route to Birkenhead, from King's Cross to Newcastle and over the Settle-Carlisle Line. In 1972, it joined in the "Return to Steam" tours. After a major overhaul, it emerged in British Railways livery in 1985. In 1986, it hauled the last train from the old Birmingham Moor Street station. In the mid 1980s, some of the restoration work was undertaken by a government funded Community Programme scheme, managed by Sandwell Metropolitan Borough Council.

September 1987 saw Clun Castle paired with 6000 Class King George V for a series of South Wales weekend enthusiast specials between Swansea and Carmarthen using the turnaround triangles available at either end.

7029 returned to service in October 2017 at the Tyseley Open Weekend in BR Lined Green with the late crest on its tender, although fitted out with the necessary equipment the engine was not certified for mainline use. Clun Castle made its first moves on the mainline for 31 years in February 2019 when it went out on its light test runs, which included a trip to Stratford upon Avon. Its loaded test run was to follow before working its first mainline train since October 1988.

Preservation Photos

• 
  7029 leaving Birmingham Snow Hill working "The Zulu" in Mar 1967.
• 
  7029 at Chester General station, about to take the southbound "Zulu" special to Birmingham Snow Hill, 4 March 1967.
• 
  Clun Castle at Tyseley in 1982.
• 
  7029 at Plymouth working "The Great Western Limited" in July 1985.
• 
  On display at Tyseley Loco Works awaiting an overhaul in Jun 2008.
• 
  7029 at Lincoln railway station on the 8 November 2022

Bibliography

• Cadge, Richard (general ed.) (1985). Portrait of a record-breaker: the story of GWR No. 7029 "Clun Castle". Birmingham Railway Museum.

External links

• The Great Western Archive - Castle class details, 7000 - 7037
• 7029 Public Recommissioning at Tyseley in Oct 2017