Birmingham & Derby Junction 2-2-2 Locomotives in Great_Britain


Class Details by Steve Llanso of Sweat House Media

Class Birmingham (Locobase 8574)

Data from Vulcan Foundry Magazine ([link], accessed 14 July 2007). Boiler pressure is an estimate.

The third of this trio of locomotives (the other two are described in Locobase 8573) differed from the first two in that it had larger and fewer tubes. Otherwise, it was similar in having the two domes, one over the firebox and the other over the tubes just behind the tall stack. It also had large carrying wheels closely spaced with the drivers and cylinders inclined slightly below the horizontal axis. The firebox hung down between the drivers and the rear axles.


Class Derby (Locobase 8573)

Data from Vulcan Foundry Magazine ([link], accessed 14 July 2007). Boiler pressure is an estimate.

The first two were supplied to the D & J along with a third that had a different tube layout (see Locobase 8574). The design sported two domes, one over the firebox and the other over the tubes just behind the tall stack. It also had large carrying wheels closely spaced with the drivers and cylinders inclined slightly below the horizontal axis. The firebox hung down between the drivers and the rear axles.

Principal Dimensions by Steve Llanso of Middle Run Media
ClassBirminghamDerby
Locobase ID8574 8573
RailroadBirmingham & Derby JunctionBirmingham & Derby Junction
CountryGreat BritainGreat Britain
Whyte2-2-22-2-2
Number in Class12
Road Numbers7775
GaugeStdStd
Number Built12
BuilderCharles Tayleur & CoCharles Tayleur & Co
Year18391839
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)
Engine Weight (lbs / kg)
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)
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)66 / 167666 / 1676
Boiler Pressure (psi / kPa)50 / 34050 / 340
High Pressure Cylinders (dia x stroke) (in / mm)12" x 18" / 305x45712" x 18" / 305x457
Tractive Effort (lbs / kg)1669 / 757.051669 / 757.05
Factor of Adhesion (Weight on Drivers/Tractive Effort)
Heating Ability
Tubes (number - dia) (in / mm)94 - 2" / 51121 - 1.625" / 41
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)
Firebox Area (sq ft / m2)53.75 / 553.75 / 5
Grate Area (sq ft / m2) 8.75 / 0.81 8.75 / 0.81
Evaporative Heating Surface (sq ft / m2)470 / 43.68490 / 45.54
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)470 / 43.68490 / 45.54
Evaporative Heating Surface/Cylinder Volume199.47207.96
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation438438
Same as above plus superheater percentage438438
Same as above but substitute firebox area for grate area26882688
Power L117241771
Power MT

All material Copyright © SteamLocomotive.com
Wes Barris