| LNER Peppercorn Class A2 | |
|---|---|
| 60532 Blue Peter passes at speed through Durham station | |
| Power type | Steam |
| Designer | Arthur Peppercorn |
| Builder | British Railways |
| Build date | 1947–1948 |
| Total produced | 15 |
| Configuration | 4-6-2 |
| UIC classification | 2'C1' |
| Gauge | 4 ft 8 1⁄2 in (1,435 mm) |
| Leading wheel diameter |
38 in (0.965 m) |
| Driver diameter | 74 in (1.880 m) |
| Trailing wheel diameter |
44 in (1.118 m) |
| Wheelbase | 60 ft 6 in (18.440 m) |
| Axle load | 22 long tons (22.4 t) |
| Locomotive weight | 101 long tons (102.6 t) |
| Fuel type | Coal |
| Fuel capacity | 9 long tons (9.1 t) |
| Water capacity | 5,000 imp gal (23,000 l) |
| Boiler pressure | 250 psi (1.72 MPa) superheated |
| Firegrate area | 50 sq ft (4.6 m2) |
| Heating surface: Tubes |
1,212 sq ft (112.6 m2) |
| Heating surface: Flues |
1,005 sq ft (93.4 m2) |
| Heating surface: Firebox |
245 sq ft (22.8 m2) |
| Superheater area | 680 sq ft (63 m2) |
| Cylinders | Three |
| Cylinder size | 19×26 in (487×660 mm) |
| Valve gear | Walschaerts, 10 in piston valves |
| Tractive effort | 40,430 lbf (179.84 kN) |
| Class | LNER: A2 |
| Power class | BR: 8P7F |
| Axle load class | Route Availability 9 |
LNER Peppercorn A2 Class No. 60532 Blue Peter is the sole survivor of 15 locomotives of the 4-6-2 Peppercorn A2 Class, designed by Arthur Peppercorn of the LNER. 60532 worked between 1948 and 1966, and is now preserved in the care of the North Eastern Locomotive Preservation Group (NELPG) at Barrow Hill Engine Shed in Derbyshire.
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60532 was built at Doncaster Works and out shopped by the newly formed British Railways on 25 March 1948. The initial livery was LNER apple green with British Railways on the tender sides.
60532 was named in the LNER tradition of using the names of famous racehorses. Blue Peter III was the name of a horse owned by Harry Primrose, 6th Earl of Rosebery, which in 1939 won races including the Epsom Derby and the 2000 Guineas. The horse earnt almost £32,000 for Lord Rosebury, more than enough to purchase three Doncaster Pacific locomotives at the time.[1]
Initially all the A2s were allocated to English sheds. 60532 was allocated to the North Eastern Region of BR at York, where it worked principally over the East Coast Main Line.[1]
In the autumn of 1949 five A2's were overhauled at Doncaster where a number of modifications were made, including the fitting of a multiple valve regulator and a double blastpipe and chimney, together with Kylchap cowls. Subsequently the five A2's, including 60532, moved to Scotland to make up for deficiencies experienced with the Thompson Class A2/2's (rebuilt LNER Class P2). 60532 was allocated to Aberdeen,[1] with all the Scottish based A2s used mainly on express passenger services between Aberdeen and Edinburgh, which benefited from their greater power and acceleration.[2]
After the English based A2's were withdrawn in 1962/3, the three remaining Scottish A2's remained in service until 1966.[2] Replaced by diesel power, 60532 was allocated to Dundee and became the last Peppercorn Pacific to be overhauled at Darlington Works. As a result it was often requested for rail tours, working as far as Holyhead and Exeter St Davids.[1]
60532's final rail tour was in October 1966 over the Waverley Line and the West Coast Main Line over Beattock. 60532 was withdrawn from service on 31 December 1966, and put into store.[1]
Geoff Drury had purchased LNER Class A4 4464 Bittern from British Rail in 1966. After her failure in 1968 he tried to buy an A1, but after the last one was cut up he was offered and purchased 60532 in 1968.[1] The locomotive is still owned by the Drury family.[2]
After preservation 60532 was the subject of a campaign for its restoration on the BBC Television series Blue Peter, and the locomotive has subsequently featured several times in the programme.[3] Restoration was undertaken at York, Leeds and Doncaster Works where it was repainted in LNER apple green livery as No 532. 60,000 people witnessed its renaming by the BBC Blue Peter programme presenters at a Doncaster Works Open Day in 1971.[1]
Moved to the Dinting Railway Centre it did little running, and in late 1987 the NELPG took charge of 60532 and A4 Bittern on long-term loan from the Drury family.[4] Restored at the Imperial Chemical Industries works at Wilton, Redcar and Cleveland, 60532 was renamed by the BBC Blue Peter programme for a second time in December 1991.
It was then moved to the North Yorkshire Moors Railway for running in. The locomotive obtained its main line certificate in 1992 and subsequently worked many rail tours over the Settle and Carlisle Railway and as far north as its old depot of Aberdeen.[1]
In 1994, during the first run of a preserved steam locomotive from Edinburgh to Newcastle, 60532 suffered extensive damage during a catastrophic uncontrolled wheelslip.
During an unscheduled stop at Durham station the inexperienced footplate crew overfilled the boiler. As the train departed south across Durham viaduct an initial slip was poorly controlled by the driver, who then reopened the regulator too early, probably worried about stalling on the bank up to Relly Mill. The force of the initial slip caused the boiler to prime, carrying water over into the regulator valve and jamming it open. This allowed passage of steam through to the cylinders, perpetuating the slip and accelerating the driving wheels. When the driver attempted to wind the reversing gear back into mid-position to halt the slip, the force of the boiler spun it into full-forward position, and the driving wheels reached a rotational speed of 140 mph before the cylinder heads blew off and the motion disintegrated.
The driver suffered major injury to his arms, as a result of the screw reversing lever whipping around when he released it. The accident brought to light the importance of train crews being trained on the specific locomotives they were driving, rather than simply a common general instruction on steam locomotives. Neither the driver or fireman had ever worked 60532 before, and were unaware of the locomotive's sensitivity to priming, which led to the accident.
The damage to the motion, cylinders and driving wheels was devastating. Moved to Thornaby MPD, the repair work took 18 months to complete.[1] 60532 was then moved again to the NYMR for running in. It resumed its mainline career in November 1996, working a charter from Middlesbrough to Preston via Newcastle and Carlisle.[1] In 1998 60532 ran an Edinburgh to London excursion to mark the 40th anniversary of the Blue Peter TV programme, passing through Durham on the way.
60532's mainline boiler certificate expired in September 2001 by which time it was again based at the NYMR, where it worked until the end of the 2002 season.[1] It was subsequently displayed at the Darlington Railway Centre and Museum. On 22 May 2007 BBC Look North News reported that the locomotive was being moved into storage in Chesterfield, due to the renovation of the museum, and would not be returning.
60532 is now based at Barrow Hill Engine Shed in Derbyshire, with the NELPG looking to raise £600,000 for restoration of the locomotive to main line running.[1]
60532 has been repainted from British Railways Brunswick green into British Railways apple green livery, similar to the first livery used on the A1 Class 60163 Tornado, .