Lake Terminal Other Articulated Locomotives

Class 20 (Locobase 9840)

Data from Lake Terminal RR 1929ca Locomotive Diagrams supplied in May 205 by Allen Stanley from his extensive collection. Works number was 37349 in November 1911.

This single all-adhesion Mallet entered service to haul loaded cars back and forth to the National Tube Company in Lorain, Ohio. Although well-suited to the tight curves and alignments, the big lone Mallet was scrapped in 1927.

Specifications
Class20
Locobase ID9840
RailroadLake Terminal
Whyte0-6-6-0
Road Numbers20
GaugeStd
BuilderBaldwin
Year1911
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase10'
Engine Wheelbase29.67'
Ratio of driving wheelbase to overall engine wheebase 0.34
Overall Wheelbase (engine & tender)62.23'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers350100 lbs
Engine Weight350100 lbs
Tender Light Weight129900 lbs
Total Engine and Tender Weight480000 lbs
Tender Water Capacity7000 gals
Tender Fuel Capacity (oil/coal)12 tons
Minimum weight per yard of rail on which locomotive could run97 lb rail
Geometry Relating to Tractive Effort
Driver Diameter55"
Boiler Pressure205 psi
Cylinders (dia x stroke)24" x 32"
Low Pressure Cylinders (dia x stroke)37" x 32"
Tractive Effort82205 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.26
Heating Ability
Firebox Area260 sq. ft
Grate Area78.30 sq. ft
Evaporative Heating Surface5640
Superheating Surface
Combined Heating Surface5640
Evaporative Heating Surface/Cylinder Volume336.61
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation16052
Same as above plus superheater percentage16052
Same as above but substitute firebox area for grate area53300
Power L13275
Power MT123.74

Credits

Introduction and specifications provided by Steve Llanso of Sweat House Media.