Syracuse & Utica 4-4-0 "American" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class unknown (Locobase 9683)

Data from John Weale, Benjamin Franklin Isherwood, Edward Dobson, Ensamples of Railway Making: Which, Although Not of English Practice, are Submitted, with Practical Illustrations, to the Civil Engineer, and the British and Irish Public (Architectural library, 1843), p. xxi.

Boiler pressure is a Locobase estimate. Similar to the 4-2-0 shown in Locobase 9682, this engine was intended to draw "very heavy loads" at 15-18 mph. The authors cited a connection between the drivers and the truck "...ingeniously arranged to throw either more or less weight on the principal driving wheels."

NB: Evaporative heating surface area estimate derived by adding reported direct heating surface to calculated tube heating surface

Specifications by Steve Llanso of Sweat House Media
Locobase ID9683
RailroadSyracuse & Utica
Number in Class1
Road Numbers
Number Built1
BuilderRogers, Ketchum & Grosvenor
Valve Gear
Locomotive Length and Weight
Driver Wheelbase
Engine Wheelbase
Ratio of driving wheelbase to overall engine wheebase
Overall Wheelbase (engine & tender)
Axle Loading (Maximum Weight per Axle)
Weight on Drivers15833 lbs
Engine Weight22351 lbs
Tender Light Weight
Total Engine and Tender Weight
Tender Water Capacity
Tender Fuel Capacity (oil/coal)
Minimum weight of rail (calculated)13 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter54"
Boiler Pressure50 psi
Cylinders (dia x stroke)12" x 18"
Tractive Effort2040 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 7.76
Heating Ability
Firebox Area42 sq. ft
Grate Area
Evaporative Heating Surface544 sq. ft
Superheating Surface
Combined Heating Surface544 sq. ft
Evaporative Heating Surface/Cylinder Volume230.88
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation0
Same as above plus superheater percentage0
Same as above but substitute firebox area for grate area2100
Power L11440
Power MT401.02

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.