Long Island 4-4-2 "Atlantic" Locomotives in the USA


Class Details by Steve Llanso of Sweat House Media

Class E51/E51sa (Locobase 4118)

Date from "Atlantic Types Locomotives for the Long Island", Railroad Gazette, Volume 33, No 27 (5 July 1901), p. 483. See also DeGolyer, Volumes 23, p. 270; 24, p. 280. (Thanks to Chris Hohl for researching the full details of this class from the Baldwin specifications.) Works numbers were 18937-18938 in April 1901 and 20488, 20496 in May 1902.

The RG account had a brief description of these camelback Atlantics, which ran the length of the line from Long Island City clear out to Montauk.

According to Connelly, #1 was rebuilt with superheat in 1919, #2 in 1920, #4 in 1922, and #3 in 1923. #2 wrecked on 13 August 1926 when the double-headed Greenport Express derailed at Calverton, 5 miles east of Riverhead; the engineer, fireman, and 4 passengers were killed, at least 10 were injured. 1 was retired in July 1929, after #4 (March 1928) and #3 in April 1929.

Principal Dimensions by Steve Llanso of Sweat House Media
ClassE51/E51sa
Locobase ID4118
RailroadLong Island
CountryUSA
Whyte4-4-2
Number in Class4
Road Numbers1-4
GaugeStd
Number Built4
BuilderBurnham, Williams & Co
Year1901
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 6.58 / 2.01
Engine Wheelbase (ft / m)25.08 / 7.64
Ratio of driving wheelbase to overall engine wheebase 0.26
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)97,850 / 44,384
Engine Weight (lbs / kg)166,110 / 75,346
Tender Loaded Weight (lbs / kg)99,890 / 45,309
Total Engine and Tender Weight (lbs / kg)266,000 / 120,655
Tender Water Capacity (gals / ML)5000 / 18.94
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)82 / 41
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)76 / 1930
Boiler Pressure (psi / kPa)200 / 13.80
High Pressure Cylinders (dia x stroke) (in / mm)19.5" x 26" / 495x660
Tractive Effort (lbs / kg)22,115 / 10031.21
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.42
Heating Ability
Firebox Area (sq ft / m2)180.50 / 16.77
Grate Area (sq ft / m2)75.50 / 7.01
Evaporative Heating Surface (sq ft / m2)2657 / 246.84
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)2657 / 246.84
Evaporative Heating Surface/Cylinder Volume295.65
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation15,100
Same as above plus superheater percentage15,100
Same as above but substitute firebox area for grate area36,100
Power L110,034
Power MT452.14

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