Birmingham & Gloucester 4-2-0 Locomotives in Great_Britain


Class Details by Steve Llanso of Sweat House Media

Class A (Locobase 4534)

See 4533 for a full description of these Norris-built locomotives supplied to the B&G for climbing the notorious Lickey Incline. The information supplied by Roger Hennessey doesn't say which of the three batches came first. I suspect it's this trio, as the later ones would be the A-extras and Bs. Additional data from Loco Profile 11 (Brian Reed, 1971).


Class A-extra (Locobase 4533)

Information from Roger Hennessey through private communication in February 2001 and from Loco Profile 11 (Brian Reed, 1971). This quintet was one of three different types of Norris locomotives imported from the US and used on the Lickey Incline a nearly 3% grade that had been thought to be beyond any traction locomotive. (One has to be impressed with how soon after steam locomotives were invented a US locomotive could compete for and win orders from British railways and prove themselves worthy.)

They were of a standard Norris pattern with inclined outside cylinders and the haystack boiler. This set of five is noticeably bigger in all dimensions than the other two batches.

Hennessey comments about their reputation:

"Opinions differ about these locos. Generally they were well-regarded, but the B&GR was a trifle ramshackle at first & maintained them poorly. Things improved after the loco superintendent was killed aboard one of them (i) its badly-repaired boiler blew at a seam; (ii) he was 'in liquor' at the time, according to a contemporary report. At least one of them was rebuilt as an 0-6-0 for banking work on the Lickey incline."

OS Nock, in Railways Then & Now (1972) notes that "although the wheel arrangement ... gave good tracking, the single pair of driving wheels and the limited adhesion weight that could be placed on them restricted the tractive power."

White (1968) is the source for the boiler pressure.

About their names, Hennessey says: " [They] were suitably Anglo-American; some were purely UK: Victoria; England; Eckington, Pershore; Droitwich (the last 3 are villages/towns hereabouts); one was neutral, Atlantic (excellent name, full of portent); others were American: Washington, Philadelphia; Niagara, Boston, Baltimore, Columbia & New York."


Class B (Locobase 4535)

See 4533 for a full description of these Norris-built locomotives supplied to the B&G for climbing the notorious Lickey Incline -- information supplied by Roger Hennessey and from Loco Profile 11 (Brian Reed, 1971). (G. Drysdale Dempsey A Rudimentary Treatise on the Locomotive Engine (1857; reprint 1970) is the source for the number and diameter of tubes.)

This group was the most numerous of the three types and the least powerful. Dempsey says they could pull a 53-ton load up the Lickey at 8 1/2 mph; a 33-ton load sailed up the incline at 12-15 mph. Fuel consumption on flatter runs between Birmingham and Liverpool average 50 lb of coke per mile and 4.27 lb of water evaporated per pound of coke.

Principal Dimensions by Steve Llanso of Middle Run Media
ClassAA-extraB
Locobase ID4534 4533 4535
RailroadBirmingham & GloucesterBirmingham & GloucesterBirmingham & Gloucester
CountryGreat BritainGreat BritainGreat Britain
Whyte4-2-04-2-04-2-0
Number in Class359
Road Numbers
GaugeStdStdStd
Number Built359
BuilderNorrisNorrisNorris
Year183918391839
Valve Gear
Locomotive Length and Weight
Driver Wheelbase (ft / m)
Engine Wheelbase (ft / m)
Ratio of driving wheelbase to overall engine wheelbase
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)16,850 / 764320,100 / 9117
Engine Weight (lbs / kg)24,100 / 10,93229,630 / 13,44020,615 / 9351
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)28 / 1434 / 17
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)48 / 121948 / 121948 / 1219
Boiler Pressure (psi / kPa)100 / 690100 / 690100 / 690
High Pressure Cylinders (dia x stroke) (in / mm)11.5" x 20" / 292x50812.5" x 20" / 318x50810.5" x 18" / 267x457
Tractive Effort (lbs / kg)4684 / 2124.635534 / 2510.183514 / 1593.93
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.60 3.63
Heating Ability
Tubes (number - dia) (in / mm)97 - 2" / 5197 - 2" / 5178 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)8 / 2.449 / 2.748 / 2.44
Firebox Area (sq ft / m2)42.56 / 3.9647.40 / 4.4134.99 / 3.25
Grate Area (sq ft / m2) 7.80 / 0.7211.35 / 1.05 7.29 / 0.68
Evaporative Heating Surface (sq ft / m2)417 / 38.75504 / 46.84362 / 33.64
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)417 / 38.75504 / 46.84362 / 33.64
Evaporative Heating Surface/Cylinder Volume173.43177.42200.67
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation7801135729
Same as above plus superheater percentage7801135729
Same as above but substitute firebox area for grate area425647403499
Power L1209620872381
Power MT274.24228.91

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