Detroit & Lima Northern 4-6-0 "Ten-wheeler" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 67 (Locobase 16236)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 21, p. 77. Works numbers were 15556-15557 in July 1897.

The Baldwin specs show that these two freight Ten-wheelers were to have been numbered 10-11, connoting their proximity to the four Eight-wheelers supplied by Baldwin just months earlier (Locobase 16233).

Both locomotives were off the Detroit, Toledo & Ironton roster by 1918.

NB: Locobase estimates the heating surfaces based on the otherwise identical dimensions (down to the 1/4" in tube length) of the Pearl & Leaf River's #8 from 1902 (Locobase 11747).

Specifications by Steve Llanso of Sweat House Media
Locobase ID16,236
RailroadDetroit & Lima Northern
Number in Class3
Road Numbers67-68/47-48
Number Built3
BuilderBurnham, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft)14.25
Engine Wheelbase (ft)24.92
Ratio of driving wheelbase to overall engine wheebase 0.57
Overall Wheelbase (engine & tender) (ft)
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)90,000
Engine Weight (lbs)120,000
Tender Loaded Weight (lbs)70,000
Total Engine and Tender Weight (lbs)190,000
Tender Water Capacity (gals)3500
Tender Fuel Capacity (oil/coal) (gals/tons)
Minimum weight of rail (calculated) (lb/yd)50
Geometry Relating to Tractive Effort
Driver Diameter (in)56
Boiler Pressure (psi)180
High Pressure Cylinders (dia x stroke) (in)18" x 24"
Tractive Effort (lbs)21,245
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.24
Heating Ability
Firebox Area (sq ft)146.53
Grate Area (sq ft)17.30
Evaporative Heating Surface (sq ft)1962
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)1962
Evaporative Heating Surface/Cylinder Volume277.57
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation3114
Same as above plus superheater percentage3114
Same as above but substitute firebox area for grate area26,375
Power L16404
Power MT470.61