By 1900, the quartet of locomotives had their driver diameters reduced by 3" (76.2 mm) to 66" (1,676 mm).
1700, 1699 were retired in February 1917 and 1698, 1701 stayed in service until June 1923.
It's not clear why Old Colony Railroad thought it necessary to send this engine to the 1893 Columbian Exposition in Chicago. It wasn't unusual in its size or capability--hundreds, even thousands like it were in service across North America. So we can view it as representative of one of the most widely distributed designs in the steam locomotive era--a North American Eight-wheeler.
The engine was shown just as the New York, New Haven and Hartford Railroad took out a 99-year lease on the entire system of 617 route miles (993 km) throughout eastern Massachusetts. As a result, the New Haven completed its shore route between New York City and Boston.
At that point, the 256 and several of her sisters were lumped together with a variety of other acquisitions as class C-2. Of that variegated class, approximately twenty had been built in the Old Colony's shops.
|Principal Dimensions by Steve Llanso of Sweat House Media|
|Class||132/C-2||256 / C-2|
|Railroad||Old Colony (New Haven)||Old Colony (New Haven)|
|Number in Class||4||1|
|Road Numbers||132-133, 136-137/732-733, 736-737/1700-1701, 1698-||256|
|Builder||Old Colony||Old Colony|
|Locomotive Length and Weight|
|Driver Wheelbase (ft / m)||9 / 2.74||9 / 2.74|
|Engine Wheelbase (ft / m)||23.50 / 7.16||23.50 / 7.16|
|Ratio of driving wheelbase to overall engine wheebase||0.38||0.38|
|Overall Wheelbase (engine & tender) (ft / m)||46.21 / 14.08||46.21 / 14.08|
|Axle Loading (Maximum Weight per Axle) (lbs / kg)|
|Weight on Drivers (lbs / kg)||61,700 / 27,987||64,000 / 29,030|
|Engine Weight (lbs / kg)||96,000 / 43,545||99,000 / 44,906|
|Tender Loaded Weight (lbs / kg)||67,000 / 30,391||67,000 / 30,391|
|Total Engine and Tender Weight (lbs / kg)||163,000 / 73,936||166,000 / 75,297|
|Tender Water Capacity (gals / ML)|
|Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)|
|Minimum weight of rail (calculated) (lb/yd / kg/m)||51 / 25.50||53 / 26.50|
|Geometry Relating to Tractive Effort|
|Driver Diameter (in / mm)||69 / 1753||69 / 1753|
|Boiler Pressure (psi / kPa)||175 / 12.10||160 / 11|
|High Pressure Cylinders (dia x stroke) (in / mm)||18" x 24" / 457x610||18" x 24" / 457x610|
|Tractive Effort (lbs / kg)||16,763 / 7603.58||15,327 / 6952.22|
|Factor of Adhesion (Weight on Drivers/Tractive Effort)||3.68||4.18|
|Firebox Area (sq ft / m2)||138 / 12.82||138 / 12.82|
|Grate Area (sq ft / m2)||19.20 / 1.78||19.25 / 1.79|
|Evaporative Heating Surface (sq ft / m2)||1448 / 134.52||1373 / 127.55|
|Superheating Surface (sq ft / m2)|
|Combined Heating Surface (sq ft / m2)||1448 / 134.52||1373 / 127.55|
|Evaporative Heating Surface/Cylinder Volume||204.85||194.24|
|Computations Relating to Power Output (More Information)|
|Robert LeMassena's Power Computation||3360||3080|
|Same as above plus superheater percentage||3360||3080|
|Same as above but substitute firebox area for grate area||24,150||22,080|