Data from August Perdonnet et Camille Polonceau, Nouveau Portefeuille de L'Ingenieur des Chemins de Fer, Tome Second (Paris: Librairie Scientifique, Industrielle et Agricole, 1866), pp. 528-529. See also Titre Rapports du jury mixte internationale publies sous la dir. de S.A.I le Prince Napoleon, presidente de la commission Imperial (Paris, Impremerie Imperiale, 1856) Collation [4]-LXXVI-1574-p. -[2]; Cote CNAM 8th Xae 53 - Mots mateiere Exposition internationale (1885; Paris); Industrie - 19e siecle; Produits industriels - 19e siecle, p. 233, hosted on cnum.cnam.fr/CGI/fpage.cgi?8XAE53/320/100/1664/0/0, accessed 1 September 2005.
According to the jury report for the 1855 Exposition, these locomotives had the same boiler and cylinders as the mixed-traffic tanks shown in 6849. But the running gear featured much taller "roues independants", which Locobase believes refers to the single-driver arrangement shown in the Whyte field. It must indeed have been fast, but its tractive effort limited train load.
Principal Dimensions by Steve Llanso of Middle Run Media | |
---|---|
Class | 1 |
Locobase ID | 6850 |
Railroad | Midi |
Country | France |
Whyte | 2-2-2 |
Number in Class | 40 |
Road Numbers | 1-100 |
Gauge | Std |
Number Built | 40 |
Builder | Batignolles |
Year | 1855 |
Valve Gear | Stephenson |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | |
Engine Wheelbase (ft / m) | 15.19 / 4.63 |
Ratio of driving wheelbase to overall engine wheelbase | |
Overall Wheelbase (engine & tender) (ft / m) | 32.37 / 9.87 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | 28,881 / 13,100 |
Weight on Drivers (lbs / kg) | 28,660 / 13,000 |
Engine Weight (lbs / kg) | 62,170 / 28,200 |
Tender Loaded Weight (lbs / kg) | 42,329 / 19,200 |
Total Engine and Tender Weight (lbs / kg) | 104,499 / 47,400 |
Tender Water Capacity (gals / ML) | 660 / 2.50 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 1.50 / 1 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 48 / 24 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 82.30 / 2090 |
Boiler Pressure (psi / kPa) | 113.10 / 780 |
High Pressure Cylinders (dia x stroke) (in / mm) | 16.54" x 22.05" / 420x560 |
Tractive Effort (lbs / kg) | 7046 / 3196.02 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.07 |
Heating Ability | |
Tubes (number - dia) (in / mm) | 180 - 1.969" / 50 |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | 11.35 / 3.46 |
Firebox Area (sq ft / m2) | 81.05 / 7.53 |
Grate Area (sq ft / m2) | 14.53 / 1.35 |
Evaporative Heating Surface (sq ft / m2) | 1050 / 97.53 |
Superheating Surface (sq ft / m2) | |
Combined Heating Surface (sq ft / m2) | 1050 / 97.53 |
Evaporative Heating Surface/Cylinder Volume | 191.48 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 1643 |
Same as above plus superheater percentage | 1643 |
Same as above but substitute firebox area for grate area | 9167 |
Power L1 | 4117 |
Power MT | 316.69 |