Bonhomie & Hattiesburg Southern 4-4-0 "American" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 200 (Locobase 15317)

Data from the T&NO 3 -1932 Locomotive Diagram book supplied in May 2005 by Allen Stanley from his extensive Raildata collection. See also DeGolyer, Vol 73, p. 364+. Works number was 58268 in May 1925.

When Tatum Lumber Company finally gained the ICC's approval for its purchase of the branch line that would be known as the B&HS, it immediately ordered some new locomotives. Passenger power on the the 27-mile line was this superheated Eight-wheeler costing $19,285, which admitted steam to its cylinders through 8" (203 mm) piston valves. The design appears to have been derived from a quintet of San Antonio & Aransas Pass locomotives produced in November 1924 (see Locobase 8653).

Its classic profile served the B&HS until 1953, when the TLC sold the branch to fellow Tatum subsidiary Fernwood, Columbia & Gulf and sent the 200 to the ferro-knacker.

Specifications by Steve Llanso of Sweat House Media
Locobase ID15,317
RailroadBonhomie & Hattiesburg Southern
Number in Class1
Road Numbers200
Number Built1
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft)7
Engine Wheelbase (ft)21.33
Ratio of driving wheelbase to overall engine wheebase 0.33
Overall Wheelbase (engine & tender) (ft)48.58
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)66,000
Engine Weight (lbs)103,000
Tender Loaded Weight (lbs)80,000
Total Engine and Tender Weight (lbs)183,000
Tender Water Capacity (gals)4000
Tender Fuel Capacity (oil/coal) (gals/tons)7
Minimum weight of rail (calculated) (lb/yd)55
Geometry Relating to Tractive Effort
Driver Diameter (in)62
Boiler Pressure (psi)175
High Pressure Cylinders (dia x stroke) (in)17" x 24"
Tractive Effort (lbs)16,641
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.97
Heating Ability
Firebox Area (sq ft)90
Grate Area (sq ft)21
Evaporative Heating Surface (sq ft)937
Superheating Surface (sq ft)186
Combined Heating Surface (sq ft)1123
Evaporative Heating Surface/Cylinder Volume148.61
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation3675
Same as above plus superheater percentage4300
Same as above but substitute firebox area for grate area18,428
Power L18779
Power MT586.50

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