The article refers to a common alternate nickname for the camelback - the "Mother Hubbard".
Builder info from B.Rumary, 25 Kingscombe, Gurney Slade, Radstock, BA3 4TH, ENGLAND and Jeremy Lambert as supplied by Allen Stanley in March 2004. Works #3101-03, manufactured in December 1898.
If ever a locomotive design got hit in the face with an ugly stick, this Mother Hubbard Consoldation qualifies as a showpiece of unaesthetic ironmongery. Using a wide firebox to burn anthracite coal meant exiling the fireman to the rear deck under his own overhang. The engineer rode in a cab that bestrode the barrel over the drivers and ahead of the steam dome. With the fat barrel and small drivers to further disrupt any sense of proportion and grace, this camelback engine must have been very serviceable because it couldn't depend on its looks.
| Specifications | ||
|---|---|---|
| Class | H-51a | H51 |
| Locobase ID | 9484 | 2619 |
| Railroad | Long Island | Long Island |
| Whyte | 2-8-0 | 2-8-0 |
| Road Numbers | 154-155 | 151-153 |
| Gauge | Std | Std |
| Builder | Burnham, Williams & Co | Brooks |
| Year | 1903 | 1898 |
| Valve Gear | Stephenson | Stephenson |
| Locomotive Length and Weight | ||
| Driver Wheelbase | 14.50' | 14.50' |
| Engine Wheelbase | 22.75' | 22.75' |
| Ratio of driving wheelbase to overall engine wheebase | 0.64 | 0.64 |
| Overall Wheelbase (engine & tender) | 50.17' | 50.17' |
| Axle Loading (Maximum Weight per Axle) | ||
| Weight on Drivers | 143080 lbs | 135000 lbs |
| Engine Weight | 165080 lbs | 155000 lbs |
| Tender Light Weight | 100000 lbs | 86000 lbs |
| Total Engine and Tender Weight | 265080 lbs | 241000 lbs |
| Tender Water Capacity | 5000 gals | 4000 gals |
| Tender Fuel Capacity (oil/coal) | 8.5 tons | 8.5 tons |
| Minimum weight per yard of rail on which locomotive could run | 59.62 lb rail | 56.25 lb rail |
| Geometry Relating to Tractive Effort | ||
| Driver Diameter | 51" | 51" |
| Boiler Pressure | 200 psi | 180 psi |
| Cylinders (dia x stroke) | 21" x 28" | 21" x 28" |
| Tractive Effort | 41160 lbs | 37044 lbs |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.48 | 3.64 |
| Heating Ability | ||
| Firebox Area | 192 sq. ft | 172 sq. ft |
| Grate Area | 70.60 sq. ft | 69.50 sq. ft |
| Evaporative Heating Surface | 2185 | 1945 |
| Superheating Surface | ||
| Combined Heating Surface | 2185 | 1945 |
| Evaporative Heating Surface/Cylinder Volume | 194.66 | 173.28 |
| Computations Relating to Power Output (More Information) | ||
| Robert LeMassena's Power Computation | 14120 | 12510 |
| Same as above plus superheater percentage | 14120 | 12510 |
| Same as above but substitute firebox area for grate area | 38400 | 30960 |
| Power L1 | 4763.18 | 3823.42 |
| Power MT | 293.57 | 249.75 |
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