LNWR Webb Experiment Class explained

LNWR Experiment Class
Powertype:	Steam
Designer:	F. W. Webb
Builder:	Crewe Works
Serialnumber:	2500, 2625–2628, 2669–2673, 2734–2753
Builddate:	1882–84
Totalproduction:	30
Whytetype:	2-(2-2)-0
Uicclass:	1AA n3v
Leadingdiameter:	3feet
Driverdiameter:	6feet
Fueltype:	Coal
Totalsurface:	1083.5square feet
Cylindercount:	Three: two high pressure outside, driving rear wheels; one low pressure inside, driving front drivers
Hpcylindersize:	13x
Lpcylindersize:	26x
Valvegear:	Joy valve gear for HP, and slip-eccentric valve gear for LP.
Operator:	London and North Western Railway
Withdrawndate:	1903–1904
Scrapdate:	1904–1905
Disposition:	All scrapped

The London and North Western Railway Experiment Class was a series of 30 three-cylinder 2-(2-2)-0 compound locomotives designed by Francis Webb for the London and North Western Railway between 1882 and 1884. They were Webb’s first large-scale experiment with a class of express compound locomotives, and the first engine was named accordingly. They were followed by a class of similar, but larger locomotives, that featured larger boilers and smaller driving wheels – the LNWR Dreadnought Class.

After Webb's retirement, his successor, George Whale, withdrew the Experiment class locomotives soon after he took up office in 1903.

Accidents and incidents

See main article: Chelford rail accident.

On 22 December 1894, a gust of wind blew a wagon into a rake of wagons at, Cheshire. They were derailed and fouled the main line. Locomotive No. 520 Express was one of two hauling an express passenger train that collided with the wagons and was derailed. 14 people were killed and 48 were injured.

Locomotives

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "LNWR Webb Experiment Class".

Table of locomotives! LNWR
No. !! Name !! Crewe
Works
No. !! Date
built !! Date
scrapped !! Notes
66	Experiment	2500
300	Compound	2625
301	Economist	2626
302	Velocipede	2627
303	Hydra	2628
305	Trentham	2669
306	Knowsley	2670
307	Victor	2671
520	Express	2672
519	Shooting Star	2673
311	Richard Francis Roberts	2734
315	Alaska	2735
321	Servia	2736
323	Britannic	2737
333	Germanic	2738
353	Oregon	2739
363	Aurania	2740
365	America	2741
366	City of Chicago	2742
310	Sarmatian	2743
1102	Cyclops	2744
1120	Apollo	2745
1104	Sunbeam	2746
1113	Hecate	2747
1111	Messenger	2748
1115	Snake	2749
1116	Friar	2750
1117	Penguin	2751
372	Empress	2752
374	Emperor	2753