LNER Class P2

LNER Class P2
2001, Cock O' The North
Power type	Steam
Designer	Sir Nigel Gresley
Build date	1934-1936
Total produced	6
Configuration	2-8-2
Leading wheel diameter	3 ft 2 in (0.97 m)
Driver diameter	6 ft 2 in (1.88 m)
Trailing wheel diameter	3 ft 2 in (0.97 m)
Wheelbase	37 ft 11 in (11.56 m) engine 16 ft 0 in (4.88 m) tender 64 ft 0.9 in (19.530 m) total
Axle load	20 long tons (20 t)
Locomotive weight	107.15 long tons (108.87 t)
Tender weight	60.35 long tons (61.32 t)
Locomotive & tender combined weight	167.5 long tons (170.2 t)
Boiler	6 ft 5 in (1.96 m) diameter
Boiler pressure	220 psi (1.5 MPa)
Firegrate area	50 sq ft (4.6 m2)
Heating surface: Tubes	1,281.4 sq ft (119.05 m2)
Heating surface: Flues	1,063.7 sq ft (98.82 m2)
Heating surface: Firebox	252.5 sq ft (23.46 m2)
Heating surface: Total	3,346.5 sq ft (310.90 m2)
Superheater area	748.9 sq ft (69.58 m2)
Cylinders	3
Cylinder size	21 × 26 in (530 × 660 mm)
Valve gear	Gresley conjugated inside, Walschaerts outside
Tractive effort	43,462 lbf (193.33 kN)
Career	London & North Eastern Railway
Retired	1943-1944
Disposition	All rebuilt as LNER Thompson Class A2/2

The London and North Eastern Railway Class P2 was a class of 2-8-2 steam locomotives designed by Sir Nigel Gresley for working heavy express trains over the harsh Edinburgh to Aberdeen Line. As they were to serve on Scottish expresses, they were given famous names from Scottish lore.

Introduced in 1934, the first locomotive of the class - No.2001 Cock o' the North - was built with Lentz rotary-cam poppet valve gear and was tested in France where a modern locomotive-testing facility was available; no such facility existing within the UK at that time. The class (except No. 2005) featured a Kylchap-type blastpipe / chimney system to aid efficiency, which was designed to take different fittings to allow experimentation with this then new exhaust arrangement.

The second engine of the class No.2002 Earl Marischal was completed with the usual Walschaerts valve gear and proved to be the more efficient engine of the two, the only major deficiency being a softer exhaust that led to a second pair of smoke deflectors being utilised to clear the smoke away from the driver's view forward.

The production series of a further four engines were completed in 1936 and were all based mechanically upon No.2002. They were all given a wedge-shaped streamlined front end, akin to that on the A4 class locomotives, which successfully solved the smoke deflection problem, No.2002 being altered to this form in 1936 and No.2001 in 1938.

It was suggested that they were not entirely successful, that their eight-wheel chassis was too rigid for the many sharp curves on the route and that the class was too big for optimum utilisation leading to heavy coal consumption. However, it has also been suggested that Gresley's successor, Edward Thompson, made these largely unsubstantiated criticisms in order to justify his rebuilding of the entire class into LNER Thompson Class A2/2 pacifics during 1943/4.^[1]

In 2010, the A1 Steam Locomotive Trust, who were responsible for the construction of 60163 Tornado, announced plans to hold a feasibility study into building a new P2 class locomotive, which would be numbered as 2007.^[2]

Locomotives

• 2001 — Cock o' the North
• 2002 — Earl Marischal
• 2003 — Lord President
• 2004 — Mons Meg
• 2005 — Thane of Fife
• 2006 — Wolf of Badenoch

References

1. ^ Nock, O.S: British Locomotives of the 20th Century Volume 2. Book Club Associates, London, 1984
2. ^ Gresley P2 study announced - A1 Steam Locomotive Trust

External links

• http://www.lner.info/locos/P/p2.shtml
• http://www.lner.info/locos/A/a2_2.shtml

This steam locomotive-related article is a stub. You can help Wikipedia by expanding it.v · Categories: Steam locomotive stubs Streamlined steam locomotives 2-8-2 locomotives London and North Eastern Railway locomotives Railway locomotives introduced in 1934 Wikimedia Foundation. 2010. Игры ⚽ Поможем написать реферат Baltimore Belt Line Division No. 10, Newfoundland and Labrador Look at other dictionaries: LNER Class A4 — 60009 Union of South Africa in 1951 Power type Steam Designer …   Wikipedia LNER Class B1 — may refer to:* GCR Class 8C (classified B1 by the LNER and then reclassified as B18 by the LNER in order to make way in the classification for) * LNER Thompson Class B1 (introduced 1942) …   Wikipedia LNER Class B2 — may refer to:*GCR Class I ( Sir Sam Fay ) Class * LNER Thompson Class B2 …   Wikipedia LNER Class A1 — may refer to two classes of steam locomotives:* The GNR Class A1 or Gresley A1 * The LNER Peppercorn Class A1 …   Wikipedia LNER Class L1 — may refer to:* GCR Class 1B * LNER Thompson Class L1 …   Wikipedia LNER Class V2 — Infobox Locomotive powertype=Steam name = LNER Class V2 caption = 60876 on no.9 road at Annesley MPD, 6 May 1962. designer = Sir Nigel Gresley builder = LNER Doncaster and Darlington Works builddate = 1936–1944 totalproduction = 184 whytetype = 2 …   Wikipedia LNER Class A2 — Infobox Locomotive name=LNER A2 class powertype=Steam caption= designer=Vincent Raven builder=NER/LNER Darlington Works builddate=1922 (2), 1924 (3) whytetype=4 6 2 uicclass=2 C1 h gauge=RailGauge|ussg totalproduction=5… …   Wikipedia LNER Class U1 — Infobox Locomotive powertype=Steam name = LNER Class U1 caption = An official photograph of No. 2395 from 1925 in photographic grey livery. designer = Nigel Gresley builder = Beyer, Peacock Co. Ltd. serialnumber=6209 builddate = 1925… …   Wikipedia LNER Class V1/V3 — Infobox Locomotive Auto name = LNER Class V1/V3 powertype = Steam service = passenger builder = LNER builddate = V1: 1930–39 V3: 1939–40 totalproduction = (V1) 82 (V3) 10 whytetype = 2 6 2T uicclass = 1C1 h3t trucks = (front) double swing link;… …   Wikipedia LNER Class K4 — Infobox Locomotive powertype=Steam name = LNER Class K4 caption = designer = Nigel Gresley builder = builddate = 1937 totalproduction = whytetype = 2 6 0 gauge = standard gauge leadingsize = driversize = 5 2 length = weight = 68 tons 8 cwt tender …   Wikipedia 18+ © Academic, 2000-2024 Contact us: Technical Support, Advertising Dictionaries export, created on PHP, Joomla, Drupal, WordPress, MODx. Mark and share Search through all dictionaries Translate… Search Internet Share the article and excerpts Direct link … Do a right-click on the link above and select “Copy Link”