Ocala Northern 4-6-0 "Ten-Wheeler" Locomotives in the USA

Class Details by Steve Llanso of Sweat House Media

Class 110 (Locobase 13715)

Data from Baldwin Locomotive Works datacard as digitized by the DeGolyer Library of Southern Methodist University, Volume 36, p.137. See also Bob Mann's Ocklawaha Valley Railroad, Florida, History at http://www.webspawner.com/users/ovrailroad/, last accessed 31 January 2012. Works number was 36129 in February 1911.

E P Rentz intended to build this logging road from Ocala and opened the first little section from Silver Springs over trackage rights to Ocala in 1910. He laid 45 miles of track between Ocala and Palatka, at which point the money ran out in 1914. After reorganization, the physical entity reappeared as the Ocklawaha Valley in April 1915.

lthough this new variant tried hard with new 60-lb/yard (30-kg/metre) rail and an express known as the The Silver Springs Special that ran between Palatka and Ocala, it never made a profit and the line went bust in 1922. Mann then tells the gruesome story of thwarted public purpose as it unfolded during the distribution of assets. Several railroads wanted to take over OV because of its central location. Mann quotes an individual who described the OV as "...some of the most important route miles in the state." Representatives of each of the major roads -- Seaboard, ACL, Southern, Florida East Coast -- each would have outbid any of the others had they bid. None of them did, for fear of setting off a bidding war, so Assets Realization of New York bought the line for its scrap value.

The state mobilized to prevent the dismantling of this railroad, taking their case all the way to the United States Supreme Court and winning. Alas for the hopes of all, ARNY had simply gone ahead and torn up the rails in defiance of the legal proceedings, so the line was declared abandoned by the Florida Railroad Commission.

The 110, which was a typical small wood-burning Baldwin Ten-wheeler then common in the southeast, was bought by locomotive rebuilder/reseller Birmingham Rail & Locomotive. BR & L sold the engine in January 1924 to R L Dowling & Son of Manatee, Fla.

Principal Dimensions by Steve Llanso of Sweat House Media
Locobase ID13,715
RailroadOcala Northern
Number in Class1
Road Numbers110
Number Built1
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)12.83 / 3.91
Engine Wheelbase (ft / m)22.98 / 7
Ratio of driving wheelbase to overall engine wheebase 0.56
Overall Wheelbase (engine & tender) (ft / m)46.40 / 14.14
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)73,600 / 33,384
Engine Weight (lbs / kg)98,300 / 44,588
Tender Loaded Weight (lbs / kg)70,000 / 31,752
Total Engine and Tender Weight (lbs / kg)168,300 / 76,340
Tender Water Capacity (gals / ML)3500 / 13.26
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)41 / 20.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)56 / 1422
Boiler Pressure (psi / kPa)180 / 12.40
High Pressure Cylinders (dia x stroke) (in / mm)16" x 24" / 406x610
Tractive Effort (lbs / kg)16,786 / 7614.01
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.38
Heating Ability
Firebox Area (sq ft / m2)90 / 8.36
Grate Area (sq ft / m2)15.50 / 1.44
Evaporative Heating Surface (sq ft / m2)1222 / 113.53
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1222 / 113.53
Evaporative Heating Surface/Cylinder Volume218.80
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2790
Same as above plus superheater percentage2790
Same as above but substitute firebox area for grate area16,200
Power L15029
Power MT451.92

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