Blanchard & Twitchell 2-4-2 "Columbian" Locomotives in the USA


Class Details by Steve Llanso of Sweat House Media

Class Berlin (Locobase 13018)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 19, p. 29, p. 212,. Works numbes were 14449 in September 1895 and 29575 in November 1906.

B&T's #3 used more cylinder volume, a bigger boiler, firebox, and grate than the Zealand Valley and East Branch & Lincoln engines. It was intended to scale steep grades of 264 ft per mile (5 %) and negotiate curves of 32 to 38 degrees. The 5 duplicated the Berlin (#3), but put 68,000 lb (30,844 kg) on the drivers, 100,00 lb (45,359 kg) on all four axles.

It's not clear from Gene Connelly's notes when the EB&L actually took delivery of the 5. Baldwin's specs give the EB&L as first operator. On the other hand, Connelly gives us Zealand Valley, which then sold the 5 to EB&L. Photos show a long-wheelbase, large saddle tank, three equal-sized domes consisting of 2 sand domes flanking a steam dome, and a long smokebox ahead of the tank.

In 1947, the Franconia Paper Company took possession of the 5. Eventually the FPC donated the engine as a display at Loon Mountain Ski area.


Class Success (Locobase 12072)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 18, p. 236,. Works number was 13610 in July 1893.

This was either a relatively large tank or a standard 4-4-0 with its auxiliary trucks relocated to allow easier movement in either direction. The railroad -- also known as the Success Pond Railroad -- was based in Mason, Maine, but remianed open for only 5 years. When the B & T closed in 1900, the 2 went to Buffalo Union Furnace Company of Buffalo, New York.

Principal Dimensions by Steve Llanso of Sweat House Media

ClassBerlinSuccess
Locobase ID13018 12072
RailroadBlanchard & TwitchellBlanchard & Twitchell
CountryUSAUSA
Whyte2-4-2ST2-4-2ST
Number in Class11
Road Numbers32
GaugeStdStd
Number Built11
BuilderBurnham, Williams & CoBurnham, Williams & Co
Year18951893
Valve GearStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 7.50 / 2.29 7.50 / 2.29
Engine Wheelbase (ft / m)24.17 / 7.3724.67 / 7.52
Ratio of driving wheelbase to overall engine wheelbase 0.31 0.30
Overall Wheelbase (engine & tender) (ft / m)24.17 / 7.3724.67 / 7.52
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)60,000 / 27,21668,000 / 30,844
Engine Weight (lbs / kg)90,000 / 40,823100,000 / 45,359
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)90,000100,000
Tender Water Capacity (gals / ML)1500 / 5.681800 / 6.82
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)50 / 2557 / 28.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)46 / 116846 / 1168
Boiler Pressure (psi / kPa)180 / 12.40140 / 9.70
High Pressure Cylinders (dia x stroke) (in / mm)15" x 24" / 381x61017" x 24" / 432x610
Tractive Effort (lbs / kg)17,961 / 8146.9817,943 / 8138.82
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.34 3.79
Heating Ability
Tubes (number - dia) (in / mm)145 - 2" / 51187 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)12 / 3.6612 / 3.66
Firebox Area (sq ft / m2)90.80 / 8.44104.60 / 9.72
Grate Area (sq ft / m2)14.90 / 1.3817.10 / 1.59
Evaporative Heating Surface (sq ft / m2)996 / 92.531271 / 118.12
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)996 / 92.531271 / 118.12
Evaporative Heating Surface/Cylinder Volume202.85201.43
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation26822394
Same as above plus superheater percentage26822394
Same as above but substitute firebox area for grate area16,34414,644
Power L140753052
Power MT299.46197.90

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