Raritan River 4-6-0 "Ten-Wheeler" Locomotives in the USA


Class Details by Steve Llanso of Sweat House Media

Class 3 (Locobase 11743)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 18, p. 37. See also Lucius Beebe, Highball! A Pageant of Trains (1945), Chapter 1, which is reproduced on the Raritan River website [link] . . Works number was 12838 in July 1892.

At the time they took delivery of this small Ten-wheeler, the Raritan River covered 12 miles from South Amboy to New Brunswick, NJ. It ran from 1892 to 1938. During World War One, the heavy demands for workers at the various defense plants in the area resulted in the carriage of almost 2 1/4 million passengers in 1918.


Class 4 (Locobase 12333)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 22, p. 69. Works number was 16528 in February 1899.

Baldwin's builder's photo shows a small transitional freight Ten-wheeler design that cost the railroad $7,300. It featured a coned boiler with the large steam dome on the thicker rear course and just ahead of the firebox, which sat down between the frames. A smaller sand dome occupied the space between the leading coupled axle and the bogie truck. An extended smoke box served as base for a tall, thin capped stack and a large headlight.

Guaranteed performance included the ability to haul 205-210 tons of trailing load up a 1 1/2% grade and around curves with a minimum 300 ft radius. The railroad ran from Perth Amboy along 12.5 miles to New Brunswick, NJ on 60-b (30 kg) rail.

After a relatively short career, the 4 came under the scrapper's torch in 1914-1915 (sources differ).

Principal Dimensions by Steve Llanso of Middle Run Media
Class34
Locobase ID11743 12333
RailroadRaritan RiverRaritan River
CountryUSAUSA
Whyte4-6-04-6-0
Number in Class11
Road Numbers34
GaugeStdStd
Number Built11
BuilderBurnham, Williams & CoBurnham, Williams & Co
Year18921899
Valve GearStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)13.83 / 4.2210 / 3.05
Engine Wheelbase (ft / m)24.06 / 7.3320.15 / 6.14
Ratio of driving wheelbase to overall engine wheelbase 0.57 0.50
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)70,000 / 31,75266,000 / 29,937
Engine Weight (lbs / kg)96,000 / 43,54586,000 / 39,009
Tender Loaded Weight (lbs / kg)63,000 / 28,576
Total Engine and Tender Weight (lbs / kg)149,000 / 67,585
Tender Water Capacity (gals / ML)2500 / 9.473000 / 11.36
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)39 / 19.5037 / 18.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)54 / 137256 / 1422
Boiler Pressure (psi / kPa)140 / 970190 / 1310
High Pressure Cylinders (dia x stroke) (in / mm)18" x 24" / 457x61016" x 24" / 406x610
Tractive Effort (lbs / kg)17,136 / 7772.7717,719 / 8037.21
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.08 3.72
Heating Ability
Tubes (number - dia) (in / mm)211 - 2" / 51178 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)12.19 / 3.7212.23 / 3.73
Firebox Area (sq ft / m2)128.10 / 11.91123.20 / 11.45
Grate Area (sq ft / m2)17.10 / 1.5919.72 / 1.83
Evaporative Heating Surface (sq ft / m2)1464 / 136.061255 / 116.64
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1464 / 136.061255 / 116.64
Evaporative Heating Surface/Cylinder Volume207.07224.51
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation23943747
Same as above plus superheater percentage23943747
Same as above but substitute firebox area for grate area17,93423,408
Power L137515935
Power MT354.41594.75

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