Data from [], last accessed 19 January 2017, (First viewed August 2002) .Works numbers were 1845-1850 in 1881, 1851-1860 in 1882.
These were the second of the 0-6-0s for Gotthard; see Locobase 5122 for the earlier Bourbonnais engines . The 1881-1882 locomotives carried larger fireboxes and weighed more.
Esslingen delivered the first batch of six in 1881 and followed with the other ten after the turn of the year. Cost per locomotive was 59,000 Swiss francs.
According to that same site, these engines managed a max speed in the mountains of 25 kph (15.5 mph) and 55 kph (34 mph) on the level.
Tonnage ratings were as follows:
Mountain -- freight 165 tons
Mountain -- passenger 195 tons
Level -- freight 600 tons
Level -- passenger 350 tons
Data from [], last accessed 19 January 2017, (August 2002). Works numbers were Krauss 414-417 in 1874 and Karlsruhe 917-918 in 1876,
The website shows these as the first in a series of six-coupled goods engines. And they're further identified as the Bourbonnais type (i.e., short-wheelbase, simply designed and very reliable).
SLM replaced the boilers in three of the engines (41, 42, and 45) in 1891-1893. According to gotthardbahn.ch, these new 170-psi boilers were slightly larger with a grate area of 16.14 sq ft and heating surface enlarged to 1,515 sq ft.
43 was retired in 1906, 44 in 1909. The others retired in 1911-1912.
Data from [], last accessed 19 January 2017, (First viewed August 2002). Works numbers were 633-634 in 1890 and 819-825 in 1893.
A further tweak on the Esslingen 0-6-0 design (see Locobase 5123 for the 1881-1882 forebears) for Gotthard by the home-country builder. Boiler pressure rose 20% and the driver diameter increased slightly, netting an increase in tractive effort.
Cost per locomotive was 66,800 Swiss francs.
Data from [], last accessed 19 January 2017, (First viewed August 2002). Works numbers were 930-934 in 1895.
These were the last of the 0-6-0s for the Gotthard. Principal difference was a larger firebox and grate.
Delivered in 1895 at the cost of 66,400 Swiss francs each. In 1906, 83 was superheated. The firetube area shrank to 1,173 sq ft to make room for the 251 sq ft (23.32 sq m) of Pielock superheater surface (see Locobase 13565 for a detailed description of this unit).
Tube diameter is estimated, calculated from (total heating surface minus firebox heating surface) divided by (tube number times length).
Data from [], last accessed 19 January 2017, (First viewed August 2002). Works number was 68 in 1875.
The first 0-6-0T to run on the Gotthard, its early date suggests involvement in the railroad's construction. Also, with a works number of 68, it clearly was an early SLM product. According to the same site's roster notes, the engine actually began serving the GB in 1880, acquiring the name Marsaglia in 1882 and running until 1913.
Data from [], last accessed 19 January 2017, (First viewed August 2002). Works numbers were 1073-1078 in 1897.
Six-coupled tanks delivered as a batch in 1897. Cost per locomotive was 49,000 Swiss francs.
Data from [], last accessed 19 January 2017, (First viewed August 2002). Works numbers were 1375-1380 in 1901.
Follow-on batch of freight tank engines with slightly less heating surface area than 301-306, but more tubes. Cost per locomotive was 56,750 Swiss francs, a 15.8% increase over 4 years.
Principal Dimensions by Steve Llanso of Middle Run Media | |||||
---|---|---|---|---|---|
Class | D 3/3 Esslingen | D 3/3 Krauss | D 3/3 SLM I | D 3/3 SLM II | E 3/3 Marsaglia |
Locobase ID | 5123 | 5122 | 5124 | 5125 | 5116 |
Railroad | Gotthardbahn | Gotthardbahn | Gotthardbahn | Gotthardbahn | Gotthardbahn |
Country | Switzerland | Switzerland | Switzerland | Switzerland | Switzerland |
Whyte | 0-6-0 | 0-6-0 | 0-6-0 | 0-6-0 | 0-6-0T |
Number in Class | 16 | 6 | 12 | 5 | 1 |
Road Numbers | 51-66 | 41-46 | 67-78 | 79-83 | 13 |
Gauge | Std | Std | Std | Std | Std |
Number Built | 16 | 6 | 12 | 5 | 1 |
Builder | Esslingen | several | SLM | SLM | SLM |
Year | 1881 | 1874 | 1890 | 1895 | 1875 |
Valve Gear | Stephenson | Stephenson | Stephenson | ||
Locomotive Length and Weight | |||||
Driver Wheelbase (ft / m) | 12.04 / 3.67 | 10.50 / 3.20 | 12.37 / 3.77 | 12.80 / 3.90 | 8.53 / 2.60 |
Engine Wheelbase (ft / m) | 12.04 / 3.67 | 10.50 / 3.20 | 12.37 / 3.77 | 12.80 / 3.90 | 8.53 / 2.60 |
Ratio of driving wheelbase to overall engine wheelbase | 1 | 1 | 1 | 1 | 1 |
Overall Wheelbase (engine & tender) (ft / m) | |||||
Axle Loading (Maximum Weight per Axle) (lbs / kg) | |||||
Weight on Drivers (lbs / kg) | 96,783 / 43,900 | 83,335 / 37,800 | 103,176 / 46,800 | 105,160 / 47,700 | 51,116 / 23,186 |
Engine Weight (lbs / kg) | 96,783 / 43,900 | 83,335 / 37,800 | 103,176 / 46,800 | 105,160 / 47,700 | 51,116 / 23,186 |
Tender Loaded Weight (lbs / kg) | 53,572 / 24,300 | 41,888 / 19,000 | 56,879 / 25,800 | 58,422 / 26,500 | |
Total Engine and Tender Weight (lbs / kg) | 150,355 / 68,200 | 125,223 / 56,800 | 160,055 / 72,600 | 163,582 / 74,200 | |
Tender Water Capacity (gals / ML) | 2244 / 8.50 | 1848 / 7 | 2244 / 8.50 | 2244 / 8.50 | 792 / 3 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 5 / 5 | 3.30 / 3 | 5 / 5 | 5 / 5 | 1.10 / 1 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 54 / 27 | 46 / 23 | 57 / 28.50 | 58 / 29 | 28 / 14 |
Geometry Relating to Tractive Effort | |||||
Driver Diameter (in / mm) | 52.40 / 1330 | 52.40 / 1330 | 53.10 / 1350 | 53.10 / 1350 | 40.60 / 1031 |
Boiler Pressure (psi / kPa) | 145 / 1000 | 145 / 1000 | 174 / 1200 | 174 / 1200 | 145 / 1000 |
High Pressure Cylinders (dia x stroke) (in / mm) | 18.9" x 25.2" / 480x640 | 18.9" x 25.2" / 480x640 | 18.9" x 25.2" / 480x640 | 18.9" x 25.2" / 480x640 | 13.39" x 19.69" / 340x500 |
Tractive Effort (lbs / kg) | 21,173 / 9603.92 | 21,173 / 9603.92 | 25,073 / 11372.94 | 25,073 / 11372.94 | 10,717 / 4861.16 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.57 | 3.94 | 4.12 | 4.19 | 4.77 |
Heating Ability | |||||
Tubes (number - dia) (in / mm) | 207 - 1.97" / 50 | 189 - 2" / 51 | 205 - 1.97" / 50 | 215 - 1.97" / 50 | 123 - 1.77" / 45 |
Flues (number - dia) (in / mm) | |||||
Flue/Tube length (ft / m) | 12.80 / 3.90 | 14.11 / 4.30 | 12.80 / 3.90 | 11.81 / 3.60 | 8.53 / 2.60 |
Firebox Area (sq ft / m2) | 93.61 / 8.70 | 82.85 / 7.70 | 93.61 / 8.70 | 109.75 / 10.20 | 47.34 / 4.40 |
Grate Area (sq ft / m2) | 19.37 / 1.80 | 15.06 / 1.40 | 19.37 / 1.80 | 22.60 / 2.10 | 8.61 / 0.80 |
Evaporative Heating Surface (sq ft / m2) | 1459 / 135.59 | 1482 / 137.73 | 1444 / 134.20 | 1424 / 132.34 | 538 / 50 |
Superheating Surface (sq ft / m2) | |||||
Combined Heating Surface (sq ft / m2) | 1459 / 135.59 | 1482 / 137.73 | 1444 / 134.20 | 1424 / 132.34 | 538 / 50 |
Evaporative Heating Surface/Cylinder Volume | 178.30 | 181.11 | 176.47 | 174.02 | 167.65 |
Computations Relating to Power Output (More Information) | |||||
Robert LeMassena's Power Computation | 2809 | 2184 | 3370 | 3932 | 1248 |
Same as above plus superheater percentage | 2809 | 2184 | 3370 | 3932 | 1248 |
Same as above but substitute firebox area for grate area | 13,573 | 12,013 | 16,288 | 19,097 | 6864 |
Power L1 | 2982 | 2935 | 3598 | 3712 | 2369 |
Power MT | 203.78 | 232.94 | 230.64 | 233.46 | 306.52 |
Principal Dimensions by Steve Llanso of Middle Run Media | ||
---|---|---|
Class | Ec 3/3 SLM I | Ec 3/3 SLM II |
Locobase ID | 5129 | 5130 |
Railroad | Gotthardbahn | Gotthardbahn |
Country | Switzerland | Switzerland |
Whyte | 0-6-0T | 0-6-0T |
Number in Class | 6 | 6 |
Road Numbers | 301-306 | 307-312 |
Gauge | Std | Std |
Number Built | 6 | 6 |
Builder | SLM | SLM |
Year | 1897 | 1901 |
Valve Gear | Walschaert | Walschaert |
Locomotive Length and Weight | ||
Driver Wheelbase (ft / m) | 11.15 / 3.40 | 11.15 / 3.40 |
Engine Wheelbase (ft / m) | 11.15 / 3.40 | 11.15 / 3.40 |
Ratio of driving wheelbase to overall engine wheelbase | 1 | 1 |
Overall Wheelbase (engine & tender) (ft / m) | ||
Axle Loading (Maximum Weight per Axle) (lbs / kg) | ||
Weight on Drivers (lbs / kg) | 94,137 / 42,700 | 94,137 / 42,700 |
Engine Weight (lbs / kg) | 94,137 / 42,700 | 94,137 / 42,700 |
Tender Loaded Weight (lbs / kg) | ||
Total Engine and Tender Weight (lbs / kg) | ||
Tender Water Capacity (gals / ML) | 1188 / 4.50 | 1188 / 4.50 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 2 / 2 | 2 / 2 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 52 / 26 | 52 / 26 |
Geometry Relating to Tractive Effort | ||
Driver Diameter (in / mm) | 48.40 / 1229 | 48.40 / 1230 |
Boiler Pressure (psi / kPa) | 174 / 1200 | 174 / 1200 |
High Pressure Cylinders (dia x stroke) (in / mm) | 14.96" x 23.62" / 380x600 | 14.96" x 23.62" / 380x600 |
Tractive Effort (lbs / kg) | 16,153 / 7326.89 | 16,153 / 7326.89 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.83 | 5.83 |
Heating Ability | ||
Tubes (number - dia) (in / mm) | 157 - 1.97" / 50 | 170 - 1.772" / 45 |
Flues (number - dia) (in / mm) | ||
Flue/Tube length (ft / m) | 9.84 / 3 | 9.84 / 3 |
Firebox Area (sq ft / m2) | 73.17 / 6.80 | 73.20 / 6.80 |
Grate Area (sq ft / m2) | 13.99 / 1.30 | 13.99 / 1.30 |
Evaporative Heating Surface (sq ft / m2) | 869 / 80.76 | 849 / 78.90 |
Superheating Surface (sq ft / m2) | ||
Combined Heating Surface (sq ft / m2) | 869 / 80.76 | 849 / 78.90 |
Evaporative Heating Surface/Cylinder Volume | 180.84 | 176.68 |
Computations Relating to Power Output (More Information) | ||
Robert LeMassena's Power Computation | 2434 | 2434 |
Same as above plus superheater percentage | 2434 | 2434 |
Same as above but substitute firebox area for grate area | 12,732 | 12,737 |
Power L1 | 3607 | 3549 |
Power MT | 253.42 | 249.34 |