The New York, Ontario & Western Railway bought twelve "Santa Fe" locomotives from the American Locomotive Company, which were delivered in 1915. They were designated as Class X and given road numbers 351 through 362. These locomotives had 57" diameter drivers, 28" x 32" cylinders, a 190 psi boiler pressure, they exerted 71,083 pounds of tractive effort and each weighed 352,500 pounds.
There are no surviving NYO&W 2-10-2 "Santa Fe" type locomotives.
|Class.||Qty.||Road Numbers||Year Built||Builder||Notes|
|X||12||351-362||1915||ALCO||Numbers 351-362 were scrapped by the end of steam on the MP|
Although described by Wes Barris in http://www.steamlocomotive.com/mountain/nyow.html (visited 17 February 2003) as "hard to maintain and hard to run -- they required two firemen", these Santa Fes nevertheless carried on until the 1940s. Known as the Bullmoose, the design had relatively small and short tubes and flues for the period. In fact, their length-to-diameter ratios were a nearly ideal 100:1 and contemporary articles celebrated the likely advantages of better heating and less back pressure.
Hohl pointed out the original grate area. Locobase originally used the 1943 figure (100 sq ft/9.29 sq m). Hohl's observation led to the 1916 articles, which describe a Gaines brick arch that included a short wall in the firebox that reduced grate area. Installing a Duplex stoker sometime after 1930 seems to have eliminated the Gaines wall and opened the entire floor of the firebox to fuel burning.
The Loco Magazine article goes into great detail about the lateral-motion assemblies and the hopes for improving the engine's ride. Success seems to have eluded the designers, however. Mal Houck refers to the "...cramped and rough riding Class X "Bullmoose" 2-10-2ªs (and with ride quality not at all aided by the lesser unsprung weight and running dynamics of engines with small drivers) .
Houck then notes the putative value of the trailing truck in freight designs: "Aside from supporting the fireboxes, bigger- and later-built locomotives with trailing trucks had an easier, if not softer (were such a thing possible in a machine of 200+ tons running steel on steel!) ride. Engines without trailer trucks rode hard due to the need for the suspension springing and qualization to be hard and stiff in order to provide support for the firebox."
Then Houck identifies the X-class's problem: The Bullmooses' "peculiar" inside-bearing two-wheeled radial stay trailing trucks provided "added stability in backing." Houck's comments on the Xs' derailing proclivity appear below. But he first pointed out that the truck's use in backing stability meant that the firebox's weight pressed on the last driving axle. As a result, the engines rode as stiffly as if they had no trailing truck at all.
Moreover, Houck's further description of the class in service shows that the trailing truck didn't always prevent problems. The Xs "were well known to be difficult and cantankerous tracking machines often prone to minor derailments; great care had to be exercised when negotiating crossovers and when turning then on the wyes at Poyntelle as they "cut off" from the pusher duties to which they so often assigned."
|Principal Dimensions by Steve Llanso of Sweat House Media|
|Railroad||New York, Ontario & Western|
|Number in Class||12|
|Locomotive Length and Weight|
|Driver Wheelbase (ft / m)||20 / 6.10|
|Engine Wheelbase (ft / m)||36.75 / 11.20|
|Ratio of driving wheelbase to overall engine wheebase||0.54|
|Overall Wheelbase (engine & tender) (ft / m)||66.83 / 20.37|
|Axle Loading (Maximum Weight per Axle) (lbs / kg)||61,000 / 27,669|
|Weight on Drivers (lbs / kg)||293,000 / 132,903|
|Engine Weight (lbs / kg)||352,500 / 159,892|
|Tender Loaded Weight (lbs / kg)||168,700 / 76,521|
|Total Engine and Tender Weight (lbs / kg)||521,200 / 236,413|
|Tender Water Capacity (gals / ML)||9000 / 34.09|
|Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)||15 / 13.60|
|Minimum weight of rail (calculated) (lb/yd / kg/m)||98 / 49|
|Geometry Relating to Tractive Effort|
|Driver Diameter (in / mm)||57 / 1448|
|Boiler Pressure (psi / kPa)||190 / 13.10|
|High Pressure Cylinders (dia x stroke) (in / mm)||28" x 32" / 711x813|
|Tractive Effort (lbs / kg)||71,083 / 32242.74|
|Factor of Adhesion (Weight on Drivers/Tractive Effort)||4.12|
|Firebox Area (sq ft / m2)||325 / 30.19|
|Grate Area (sq ft / m2)||80.70 / 7.50|
|Evaporative Heating Surface (sq ft / m2)||4498 / 417.87|
|Superheating Surface (sq ft / m2)||1007 / 93.55|
|Combined Heating Surface (sq ft / m2)||5505 / 511.42|
|Evaporative Heating Surface/Cylinder Volume||197.23|
|Computations Relating to Power Output (More Information)|
|Robert LeMassena's Power Computation||15,333|
|Same as above plus superheater percentage||18,093|
|Same as above but substitute firebox area for grate area||72,865|