United States Navy Yard - Puget Sound 0-4-0 Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class Olympic (Locobase 12944)

Data from "Lima Switcher," Railway and Locomotive Engineering, Volume 18, No 6 (June 1905), p. 272. Works number was 1011 in April 1905.

Locobase has logged an agenda item to include North American switchers in the holding at some later date. But this little saddle tank turned up in another search, so the compiler put it in.

Specifications by Steve Llanso of Sweat House Media
Locobase ID12944
RailroadUnited States Navy Yard - Puget Sound
Number in Class1
Road Numbers
Number Built1
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase6'
Engine Wheelbase6'
Ratio of driving wheelbase to overall engine wheebase1
Overall Wheelbase (engine & tender)6'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers50000 lbs
Engine Weight50000 lbs
Tender Light Weight
Total Engine and Tender Weight50000 lbs
Tender Water Capacity700 gals
Tender Fuel Capacity (oil/coal)0.5 tons
Minimum weight of rail (calculated)42 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter36"
Boiler Pressure150 psi
Cylinders (dia x stroke)12" x 16"
Tractive Effort8160 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 6.13
Heating Ability
Firebox Area54.60 sq. ft
Grate Area10.40 sq. ft
Evaporative Heating Surface487 sq. ft
Superheating Surface
Combined Heating Surface487 sq. ft
Evaporative Heating Surface/Cylinder Volume232.53
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1560
Same as above plus superheater percentage1560
Same as above but substitute firebox area for grate area8190
Power L13266
Power MT288.01

If you have any railroad data such as diagram books, rail station plans or anything else that you would be willing to share, please contact us.