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| LNER Class A1 Peppercorn Specification |
|
60133 Pommern passing Leeds-Holbeck High Level Station hauling Leeds Central to Kings Cross Yorkshire Pullman in 1951
|
| Item |
Imperial |
Metric |
| Built |
1948-1949 (2007, see article) |
|
| Number of pieces |
49 (+1 under construction, see article) |
|
| Numbers of engines |
60114 to 60162, (60163 under construction, see article) |
|
| Wheel Arrangement |
4-6-2 |
2-3-1 (Pacific) |
| Length over buffers (including tender) |
72' 11 3/4" |
22.22 m |
| Maximum Height |
13' 1" |
3.99 m |
| Maximum Width (over cab side screens) |
9' 2 7/8" |
2.82 m |
| Diameter of driving wheels |
6' 8" |
2,032 mm |
| Diameter of bogie wheels |
3' 2" |
965 mm |
| Diameter of trailing carrying wheels |
3' 8" |
1,118 mm |
| Power (indicated) |
|
approx 2700 PSi |
| Power (at drawbar) |
|
600-900 PS |
| Maximum speed |
100 mph |
160 km/h |
| Boiler type |
Diagram 118 |
| Boiler maximum diameter |
6' 5" |
1.96 m |
| Boiler overall length |
29' 2" |
8.89 m |
| Boiler pressure (maximum) |
250 lb/sq in |
17.25 bar |
| Piston diameter |
19" |
483 mm |
| Valve diameter |
10" |
250 mm |
| Piston stroke |
26" |
660 mm |
| Grate area |
50 sq ft |
4.65 m² |
| Heating surface (firebox) |
245.30 sq ft |
22.79 m² |
| Heating surface (small tubes) |
1211.57 sq ft |
112.56 m² |
| Heating surface (superheater flue tubes) |
1004.50 sq ft |
93.32 m² |
| Total evaporative heating surfaces |
2461.37 sq ft |
228.67 m² |
| Small tubes diameter |
121 x 2 1/4" |
57.2 mm |
| Superheater flues diameter |
43 x 5 1/4" |
133.4 mm |
| Superheater heating surface |
697.67 sq ft |
64.14 m² |
| Maximum axle load |
22 tons 7 cwt |
22.7 t |
| Adhesive weight (full boiler) |
66 tons 11 cwt |
67.7 t |
| Weight of locomotive only (full) |
105 tons 4 cwt |
106.9 t |
| Total locomotive and tender weight (full) |
166 tons 2 cwt |
168.8 t |
| Tender coal capacity |
9 tons |
9.14 t |
| Tender water capacity |
5,000 gallons (60163: 6,000 gallons) |
22.700 l (60163: 27,240 l) |
| Tender weight (full) |
60 tons 18 cwt |
61.87 t |
| Tender wheel arrangement |
8 wheels rigid frame |
|
| Tender wheel diameter |
4' 2" |
1,270 mm |
The London and North Eastern Railway (LNER) Peppercorn Class A1 was a class of steam locomotives. 49 were built to the design of Arthur Peppercorn (who was the last Chief Mechanical Engineer (CME) of the London and North Eastern Railway) during the early British Railways era, but none survived. A fiftieth example, 60163 Tornado (named after the Panavia Tornado) is however being built by the A1 Steam Locomotive Trust. The Class has the wheel arrangement 4-6-2 and was powered with three pistons. The chimney system was of the type Double-Kylchap. The new series was ordered by the LNER but delivered later to British Railways. It was built after the nationalization of private railway companies at Doncaster and Darlington works of former LNER between 1948 and 1949. The former LNER Class A1 locomotives designed by Sir Nigel Gresley were renamed before to LNER Class A3. The locomotives were designed to cope with the heaviest passenger trains in the after-war period at the East Coast Mainline (London – York – Newcastle – Edinburgh – Aberdeen) which consisted normally of trains with up to 15 coaches and up to 550 tons. The ‘’’Peppercorn’’’ A1’s were able to pull such a train on a plain at a speed of 60-70 mph (95-110 km/h.
[edit] Names of historic locomotives
| BR number |
Name |
Build date |
Disposal date |
| 60114 |
W.P. Allen |
August 1948 |
December 1964 |
| 60115 |
Meg Merrilies |
September 1948 |
November 1962 |
| 60116 |
Hal o' the Wynd |
October 1948 |
June 1965 |
| 60117 |
Bois Roussel |
October 1948 |
June 1965 |
| 60118 |
Archibald Sturrock |
November 1948 |
October 1965 |
| 60119 |
Patrick Stirling |
November 1948 |
May 1964 |
| 60120 |
Kittiwake |
December 1948 |
January 1964 |
| 60121 |
Silurian |
December 1948 |
October 1965 |
| 60122 |
Curlew |
December 1948 |
December 1962 |
| 60123 |
H.A. Ivatt |
February 1949 |
October 1962 |
| 60124 |
Kenilworth |
March 1949 |
March 1966 |
| 60125 |
Scottish Union |
April 1949 |
July 1964 |
| 60126 |
Sir Vincent Raven |
April 1949 |
January 1965 |
| 60127 |
Wilson Worsdell |
May 1949 |
June 1965 |
| 60128 |
Bongrace |
May 1949 |
January 1965 |
| 60129 |
Guy Mannering |
June 1949 |
October 1965 |
| 60130 |
Kestrel |
September 1948 |
October 1965 |
| 60131 |
Osprey |
October 1948 |
October 1965 |
| 60132 |
Marmion |
October 1948 |
June 1965 |
| 60133 |
Pommern |
October 1948 |
June 1965 |
| 60134 |
Foxhunter |
November 1948 |
October 1965 |
| 60135 |
Madge Wildfire |
November 1948 |
November 1962 |
| 60136 |
Alcazar |
November 1948 |
May 1963 |
| 60137 |
Redgauntlet |
December 1948 |
October 1962 |
| 60138 |
Boswell |
December 1948 |
October 1965 |
| 60139 |
Sea Eagle |
December 1948 |
June 1964 |
| 60140 |
Balmoral |
December 1948 |
January 1965 |
| 60141 |
Abbotsford |
December 1948 |
October 1964 |
| 60142 |
Edward Fletcher |
February 1949 |
June 1965 |
| 60143 |
Sir Walter Scott |
February 1949 |
May 1964 |
| 60144 |
King's Courier |
March 1949 |
April 1963 |
| 60145 |
Saint Mungo |
March 1949 |
June 1966 |
| 60146 |
Peregrine |
April 1949 |
October 1965 |
| 60147 |
North Eastern |
April 1949 |
August 1964 |
| 60148 |
Aboyeur |
May 1949 |
June 1965 |
| 60149 |
Amadis |
May 1949 |
June 1964 |
| 60150 |
Willbrook |
June 1949 |
October 1964 |
| 60151 |
Midlothian |
June 1949 |
November 1965 |
| 60152 |
Holyrood |
July 1949 |
June 1965 |
| 60153 |
Flamboyant |
August 1949 |
November 1962 |
| 60154 |
Bon Accord |
September 1949 |
October 1965 |
| 60155 |
Borderer |
September 1949 |
October 1965 |
| 60156 |
Great Central |
October 1949 |
May 1965 |
| 60157 |
Great Eastern |
November 1949 |
January 1965 |
| 60158 |
Aberdonian |
November 1949 |
December 1964 |
| 60159 |
Bonnie Dundee |
November 1949 |
October 1963 |
| 60160 |
Auld Reekie |
December 1949 |
December 1963 |
| 60161 |
North British |
December 1949 |
October 1963 |
| 60162 |
Saint Johnstoun |
December 1949 |
October 1963 |
[edit] External links
