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 ID15317
RailroadBonhomie & Hattiesburg Southern
Number in Class1
Road Numbers200
Number Built1
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase7'
Engine Wheelbase21.33'
Ratio of driving wheelbase to overall engine wheebase 0.33
Overall Wheelbase (engine & tender)48.58'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers66000 lbs
Engine Weight103000 lbs
Tender Light Weight80000 lbs
Total Engine and Tender Weight183000 lbs
Tender Water Capacity4000 gals
Tender Fuel Capacity (oil/coal)7 tons
Minimum weight of rail (calculated)55 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter62"
Boiler Pressure175 psi
Cylinders (dia x stroke)17" x 24"
Tractive Effort16641 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.97
Heating Ability
Firebox Area90 sq. ft
Grate Area21 sq. ft
Evaporative Heating Surface937 sq. ft
Superheating Surface186 sq. ft
Combined Heating Surface1123 sq. ft
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 area18428
Power L18779
Power MT586.50

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