The "Link Line" (aka the Sausage) began as the Crystal Lake & Uvalde connecting those two towns southwest of San Antonio. The system grew quickly. The North-South line extended a few miles further south to Carrizo Springs even before the line was begun. Once it was complete, land speculation by "colonizers" encouraged eastward expansion from Crystal Lake on a road that curved north to Pleasanton. By this time, the SAU & G intended to link Pleasanton and Corpus Christi to its southeast; it was logical to connect Pleasanton to San Antonio. The final Sausage layout resembled an upside-down Adirondack chair (or a laid-back, lower-case h). (Use your imagination or look up the map at http://www.txtransportationmuseum.org/SAUG.htm.)
Although the original line and its link to Pleasanton soon proved unprofitable, the San Antonio-Corpus Christi link proved valuable to the Missouri Pacific (through its purchase by the New Orleans, Texas & Mexico in 1925).
Among the SAU & G's motive power on inauguration day was this small, recently built Ten-Wheeler. Locobase isn't sure whether the railroad bought this one. The Texas Transportation Museum article says only one new engine - from Lima - came to the Sausage. Its tire diameter was increased to 58" in 1931.
These Ten-wheelers were built a year after the SAU & G began service. Their driver diameter increased by an inch to 58" in 1931. The 298 was scrapped at Palestine in December 1934.
This Ten-wheeler was built a year after the SAU & G began service. It was never superheated.
| Specifications | |||
|---|---|---|---|
| Class | TN-57 - 239 | TN-63 - 25.7 | TN-63 - 297 |
| Locobase ID | 7754 | 7757 | 7755 |
| Railroad | San Antonio, Uvalde & Gulf (NOT & M/MP) | San Antonio, Uvalde & Gulf (NOT & M/MP) | San Antonio, Uvalde & Gulf (NOT & M/MP) |
| Whyte | 4-6-0 | 4-6-0 | 4-6-0 |
| Road Numbers | 235 | 298-299 | 297-298 |
| Gauge | Std | Std | Std |
| Builder | Baldwin | Alco | Alco |
| Year | 1912 | 1913 | 1913 |
| Valve Gear | Walschaert | Walschaert | Walschaert |
| Locomotive Length and Weight | |||
| Driver Wheelbase | 12' | 12' | 14' |
| Engine Wheelbase | 23.13' | 23.08' | 24.58' |
| Ratio of driving wheelbase to overall engine wheebase | 0.52 | 0.52 | 0.57 |
| Overall Wheelbase (engine & tender) | 52.50' | 56.08' | 54.45' |
| Axle Loading (Maximum Weight per Axle) | 42552 lbs | ||
| Weight on Drivers | 113280 lbs | 113500 lbs | 116000 lbs |
| Engine Weight | 139080 lbs | 147500 lbs | 162000 lbs |
| Tender Light Weight | 113494 lbs | 123000 lbs | 109700 lbs |
| Total Engine and Tender Weight | 252574 lbs | 270500 lbs | 271700 lbs |
| Tender Water Capacity | 6000 gals | 6000 gals | 6000 gals |
| Tender Fuel Capacity (oil/coal) | 2741 gals | 2741 gals | 2721 gals |
| Minimum weight per yard of rail on which locomotive could run | 62.93 lb rail | 63.06 lb rail | 64.44 lb rail |
| Geometry Relating to Tractive Effort | |||
| Driver Diameter | 57" | 57" | 63" |
| Boiler Pressure | 190 psi | 180 psi | 200 psi |
| Cylinders (dia x stroke) | 18" x 26" | 20" x 24" | 19.5" x 26" |
| Tractive Effort | 23868 lbs | 25768 lbs | 26678 lbs |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.75 | 4.40 | 4.35 |
| Heating Ability | |||
| Firebox Area | 150 sq. ft | 155 sq. ft | 160 sq. ft |
| Grate Area | 25 sq. ft | 31 sq. ft | 29 sq. ft |
| Evaporative Heating Surface | 1444 | 1560 | 2127 |
| Superheating Surface | 289 | 310 | |
| Combined Heating Surface | 1733 | 1870 | 2127 |
| Evaporative Heating Surface/Cylinder Volume | 188.57 | 178.76 | 236.67 |
| Computations Relating to Power Output (More Information) | |||
| Robert LeMassena's Power Computation | 4750 | 5580 | 5800 |
| Same as above plus superheater percentage | 5542.12 | 6505.03 | 5800 |
| Same as above but substitute firebox area for grate area | 33252.74 | 32525.13 | 32000 |
| Power L1 | 11302.42 | 10042.52 | 6839.48 |
| Power MT | 659.89 | 585.20 | 389.96 |
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