Major & Loomis 0-4-4 "Forney" Locomotives in the USA


Class Details by Steve Llanso of Sweat House Media

Class 2 (Locobase 11810)

Data from Baldwin Logging Locomotives, p. 4. See also DeGolyer, Volume 30, p. 247. Works number was 30867 in May 1907.

Marsh & Loomis were based in Hertford, North Carolina. Like many other locomotives, this tiny skinny-gauge tank's boiler was jacketed in "Russia iron"--(see Locobase 11179 for a description of this 19th century technique for protecting a boiler.)

Principal Dimensions by Steve Llanso of Middle Run Media
Class2
Locobase ID11810
RailroadMajor & Loomis
CountryUSA
Whyte0-4-4T
Number in Class1
Road Numbers2
Gauge3'
Number Built1
BuilderBurnham, Williams & Co
Year1907
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)4 / 1.22
Engine Wheelbase (ft / m)14.17 / 4.32
Ratio of driving wheelbase to overall engine wheelbase 0.28
Overall Wheelbase (engine & tender) (ft / m)14.17 / 4.32
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)19,300 / 8754
Engine Weight (lbs / kg)31,750 / 14,402
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)500 / 1.89
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 0.90 / 1
Minimum weight of rail (calculated) (lb/yd / kg/m)16 / 8
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)28 / 711
Boiler Pressure (psi / kPa)160 / 1100
High Pressure Cylinders (dia x stroke) (in / mm)8" x 12" / 203x305
Tractive Effort (lbs / kg)3730 / 1691.90
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.17
Heating Ability
Tubes (number - dia) (in / mm)55 - 1.5" / 38
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m) 6.67 / 2.03
Firebox Area (sq ft / m2)27 / 2.51
Grate Area (sq ft / m2) 4.60 / 0.43
Evaporative Heating Surface (sq ft / m2)170 / 15.79
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)170 / 15.79
Evaporative Heating Surface/Cylinder Volume242.86
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation736
Same as above plus superheater percentage736
Same as above but substitute firebox area for grate area4320
Power L13253
Power MT743.17

All material Copyright © SteamLocomotive.com
Wes Barris