St John's & Halifax 4-4-0 "American" Locomotives in the USA

Class Details by Steve Llanso of Sweat House Media

Class 4 (Locobase 11840)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 12, p.256. Works number was 7786 in January 1886.

Locobase is a little surprised to have found 40 entries in which the stroke of the HP piston is at least double its diameter. This little Eight-wheeler bore several heralds. In 1888, the St J & H became the St J & H River. In 1893, it was reorganized as the St John, Augustine & Indian River and finally the Florida East Coast took over the St J, A & IR in 1995.

Three years later the FEC scrapped this virtually new locomotive.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID11840
RailroadSt John's & Halifax
Number in Class1
Road Numbers4
Number Built1
BuilderBurnham, Parry, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 6.42 / 1.96
Engine Wheelbase (ft / m)18.33 / 5.59
Ratio of driving wheelbase to overall engine wheelbase 0.35
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)26,000 / 11,793
Engine Weight (lbs / kg)42,000 / 19,051
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)2600 / 9.85
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)22 / 11
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)48 / 1219
Boiler Pressure (psi / kPa)130 / 9
High Pressure Cylinders (dia x stroke) (in / mm)11" x 22" / 279x559
Tractive Effort (lbs / kg)6128 / 2779.62
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.24
Heating Ability
Tubes (number - dia) (in / mm)96 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)9 / 2.74
Firebox Area (sq ft / m2)62.26 / 5.79
Grate Area (sq ft / m2)11.86 / 1.10
Evaporative Heating Surface (sq ft / m2)515 / 47.86
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)515 / 47.86
Evaporative Heating Surface/Cylinder Volume212.81
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1542
Same as above plus superheater percentage1542
Same as above but substitute firebox area for grate area8094
Power L13551
Power MT602.20

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Wes Barris