Northern Adirondack 4-6-0 "Ten-wheeler" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class Mountaineer/F-X (Locobase 14566)

Data from Dimensions and Classifications of Locomotives of the NYC&HR et al, September 1905, p. 347. See also a history of the NY&O at . This Ten-wheeler was delivered to the NA as a Batchellor cross-compound locomotive with a 19" diameter HP cylinder on the left and a 28" diameter LP cylinder on the right.

After substituting Northern New York for the NA on its tender in 1895, the 7 erased that short-lived name in 1897 and replaced it with New York & Ottawa. At that point, the 7 was simpled as shown in the specifications above.

After the New York Central absorbed the NY&O in 1905, it renumbered the 7 to 2199 and retired it in 1914.

Specifications by Steve Llanso of Sweat House Media
Locobase ID14566
RailroadNorthern Adirondack
Number in Class1
Road Numbers7/2199
Number Built1
BuilderRhode Island
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase13.67'
Engine Wheelbase24'
Ratio of driving wheelbase to overall engine wheebase 0.57
Overall Wheelbase (engine & tender)49'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers88000 lbs
Engine Weight134000 lbs
Tender Light Weight71000 lbs
Total Engine and Tender Weight205000 lbs
Tender Water Capacity2500 gals
Tender Fuel Capacity (oil/coal)8 tons
Minimum weight of rail (calculated)49 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter56"
Boiler Pressure180 psi
Cylinders (dia x stroke)19" x 26"
Tractive Effort25644 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.43
Heating Ability
Firebox Area167 sq. ft
Grate Area30 sq. ft
Evaporative Heating Surface1409 sq. ft
Superheating Surface
Combined Heating Surface1409 sq. ft
Evaporative Heating Surface/Cylinder Volume165.14
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation5400
Same as above plus superheater percentage5400
Same as above but substitute firebox area for grate area30060
Power L14419
Power MT332.12

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