Data from users.libero.it/allesandro.tuzza/fonti/sfr/1879sfrindice.htm (8 July 2004), an 1878 album of locomotives for the SFR reproduced by Allesandro Tuzza. (Reference: 18785751 STRADE FERRATE ROMANE Album delle locomotive Firenze : Benelli, 1878, found in bibliography at [], Tavola 1, last accessed 28 July 2007)
Data from users.libero.it/allesandro.tuzza/fonti/sfr/1879sfrindice.htm (8 July 2004), an 1878 album of locomotives for the SFR reproduced by Allesandro Tuzza. (later cite: [], Tavola 2)
Data from users.libero.it/allesandro.tuzza/fonti/sfr/1879sfrindice.htm (8 July 2004), an 1878 album of locomotives for the SFR reproduced by Allesandro Tuzza (later cite: [], Tavola 3). See also Alexandre Louis Deghilage, Origine de la Locomotive (Paris: Imprierie A Broise et Courtier, 1886), p. 38. (Thanks to Teemu Koivumaki for his 4 January 2021 email supplying the link to Luigi M Impallomeni, "Locomotive impiegate nelle strade ferrate granducali 1844-1860", archived at [
]. last accessed 1/12/2021). Its summary of Grand Ducal locomotives has been very helpful. Works number was 400 in 1844.
Principal Dimensions by Steve Llanso of Sweat House Media | |||
---|---|---|---|
Class | 1 | 25 | 41 |
Locobase ID | 6231 | 6232 | 6233 |
Railroad | Strade Ferrate Romane (SFR) | Strade Ferrate Romane (SFR) | Leopolda Railway (SFR) |
Country | Italy | Italy | Italy |
Whyte | 2-2-2 | 2-2-2 | 2-2-2 |
Number in Class | 14 | 1 | 1 |
Road Numbers | 1-14 | 25 | 41 |
Gauge | Std | Std | Std |
Number Built | 14 | 1 | 1 |
Builder | Canada Works | Sharp, Stewart | Robert Stephenson & Co |
Year | 1863 | 1858 | 1844 |
Valve Gear | Gooch | Stephenson | Stephenson |
Locomotive Length and Weight | |||
Driver Wheelbase (ft / m) | |||
Engine Wheelbase (ft / m) | 13.50 / 4.12 | 11.44 / 3.49 | 10.25 / 3.12 |
Ratio of driving wheelbase to overall engine wheelbase | |||
Overall Wheelbase (engine & tender) (ft / m) | 23 / 7.01 | 21.78 / 6.64 | 23.85 / 7.27 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | 20,834 / 9450 | 16,535 / 7500 | 18,078 / 8200 |
Weight on Drivers (lbs / kg) | 18,739 / 8500 | 16,535 / 7500 | 15,983 / 7250 |
Engine Weight (lbs / kg) | 52,470 / 23,800 | 44,644 / 20,250 | 48,502 / 22,000 |
Tender Loaded Weight (lbs / kg) | 34,833 / 15,800 | 37,038 / 16,800 | 34,613 / 15,700 |
Total Engine and Tender Weight (lbs / kg) | 87,303 / 39,600 | 81,682 / 37,050 | 83,115 / 37,700 |
Tender Water Capacity (gals / ML) | 1267 / 4.80 | 1056 / 4 | 1162 / 4.40 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | / 1 | 1.10 / 1 | 1 / 1 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 31 / 15.50 | 28 / 14 | 27 / 13.50 |
Geometry Relating to Tractive Effort | |||
Driver Diameter (in / mm) | 71.20 / 1808 | 66.10 / 1680 | 66 / 1675 |
Boiler Pressure (psi / kPa) | 101.50 / 7 | 87 / 6 | 58 / 4 |
High Pressure Cylinders (dia x stroke) (in / mm) | 15" x 20" / 381x508 | 14.49" x 20" / 368x508 | 14" x 22" / 356x558 |
Tractive Effort (lbs / kg) | 5453 / 2473.44 | 4698 / 2130.98 | 3221 / 1461.02 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.44 | 3.52 | 4.96 |
Heating Ability | |||
Tubes (number - dia) (in / mm) | 164 - 1.75" / 41 | 147 - 1.732" / 44 | 148 - 1.575" / 40 |
Flues (number - dia) (in / mm) | |||
Flue/Tube length (ft / m) | 10.30 / 3.14 | 10.37 / 3.16 | 12.63 / 3.85 |
Firebox Area (sq ft / m2) | 72.52 / 6.74 | 59.96 / 5.57 | 57.89 / 5.38 |
Grate Area (sq ft / m2) | 12.48 / 1.16 | 10.76 / 1 | 8.93 / 0.83 |
Evaporative Heating Surface (sq ft / m2) | 787 / 73.18 | 750 / 69.70 | 771 / 71.61 |
Superheating Surface (sq ft / m2) | |||
Combined Heating Surface (sq ft / m2) | 787 / 73.18 | 750 / 69.70 | 771 / 71.61 |
Evaporative Heating Surface/Cylinder Volume | 192.39 | 196.48 | 196.70 |
Computations Relating to Power Output (More Information) | |||
Robert LeMassena's Power Computation | 1267 | 936 | 518 |
Same as above plus superheater percentage | 1267 | 936 | 518 |
Same as above but substitute firebox area for grate area | 7361 | 5217 | 3358 |
Power L1 | 3385 | 2636 | 1726 |
Power MT | 398.24 | 351.46 | 238.08 |