Longville Lumber 2-6-2 "Prairie" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 93 (Locobase 14935)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 65, p. 45. Works number was 54090 in November 1920.

Identical to the Calcasieu superheated logging Consolidation described in Locobase 14933 and owned by the same company, the 93 first operated in Longville, La. It later joined the Calcasieu #68 on the Longview, Portland & Northern. Unlike the 68, which was later sold to Mexico, the 93 was scrapped after 35 years' service by the LP&N.

Specifications by Steve Llanso of Sweat House Media
Locobase ID14935
RailroadLongville Lumber
Number in Class1
Road Numbers93
Number Built1
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase10.25'
Engine Wheelbase26.83'
Ratio of driving wheelbase to overall engine wheebase 0.38
Overall Wheelbase (engine & tender)50.50'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers101000 lbs
Engine Weight130000 lbs
Tender Light Weight90000 lbs
Total Engine and Tender Weight220000 lbs
Tender Water Capacity4500 gals
Tender Fuel Capacity (oil/coal)6 tons
Minimum weight of rail (calculated)56 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter47"
Boiler Pressure200 psi
Cylinders (dia x stroke)17" x 24"
Tractive Effort25088 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.03
Heating Ability
Firebox Area104 sq. ft
Grate Area18.70 sq. ft
Evaporative Heating Surface1438 sq. ft
Superheating Surface344 sq. ft
Combined Heating Surface1782 sq. ft
Evaporative Heating Surface/Cylinder Volume228.07
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation3740
Same as above plus superheater percentage4451
Same as above but substitute firebox area for grate area24752
Power L112558
Power MT822.35

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