Houston & Brazos Valley 4-6-0 "Ten-Wheeler" Locomotives in the USA


Class Details by Steve Llanso of Sweat House Media

Class TN-60 - 27.8 (Locobase 7759)

Data from MP SUBS 7 - 1935 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive Rail Data Exchange.

The H & BV bought the rights to the Velasco, Brazos and Northern Railway, which then consisted of 20 miles between Anchor and Velasco. Its 1924 acquisition by the New Orleans, Texas & Mexico was followed a year later by the latter's purchase by the Missouri Pacific. But the H & BV operated as a separate company for several decades more.

Principal Dimensions by Steve Llanso of Sweat House Media
ClassTN-60 - 27.8
Locobase ID7759
RailroadHouston & Brazos Valley (NOT & M/MP)
CountryUSA
Whyte4-6-0
Number in Class1
Road Numbers310
GaugeStd
Number Built1
BuilderAlco
Year1907
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)13.50 / 4.11
Engine Wheelbase (ft / m)24.50 / 7.47
Ratio of driving wheelbase to overall engine wheebase 0.55
Overall Wheelbase (engine & tender) (ft / m)53.92 / 16.43
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)129,000 / 58,513
Engine Weight (lbs / kg)170,700 / 77,428
Tender Loaded Weight (lbs / kg)98,500 / 44,679
Total Engine and Tender Weight (lbs / kg)269,200 / 122,107
Tender Water Capacity (gals / ML)5000 / 18.94
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)1929 / 7.30
Minimum weight of rail (calculated) (lb/yd / kg/m)72 / 36
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)61 / 1549
Boiler Pressure (psi / kPa)180 / 12.40
High Pressure Cylinders (dia x stroke) (in / mm)19" x 28" / 483x711
Tractive Effort (lbs / kg)25,353 / 11499.94
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.09
Heating Ability
Firebox Area (sq ft / m2)175 / 16.26
Grate Area (sq ft / m2)29.20 / 2.71
Evaporative Heating Surface (sq ft / m2)2606 / 242.19
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)2606 / 242.19
Evaporative Heating Surface/Cylinder Volume283.62
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation5256
Same as above plus superheater percentage5256
Same as above but substitute firebox area for grate area31,500
Power L16933
Power MT355.46

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