Lyon-Mediterranee 2-2-2 Locomotives in France
Class Details by Steve Llanso of Sweat House Media
Class 155 (Locobase 13360)
Data from the PLM Wiki vault crammed with data and plans at [
], last accessed 3 November 2011. The plan comes from the 1869 PLM plan book collected by Roland Sermet. (Thanks to Teemu Koivumaki for his 31 January 2021 email noting the works numbers for all but 206-207). Works numbers for 155-168 were 937-950 in 1855 (road numbers 51-64).
The southern half of what would become the PLM bought these small "English express" locomotives (Express anglaises) 51 : BorTe, 52 : Ouragan, 53 : Simoun, 54 : Tempte, 55 : Autan, 56 : Siroco, 57 : Foudre, 58 : Ariel, 59 : Bradamante, 60 : Rabica, 61 : Bride d'or, 62 : Rodemont, 63 : Hippogriffe, 64 : Emperor, 65 :Narphise, 66 : Etincelle
NB: The boiler pressure setting is an estimate.
Class 67 / 120 91 (Locobase 13361)
Data from the PLM Wiki vault crammed with data and plans at [], last accessed 3 November 2011. The plan comes from the 1869 PLM plan book collected by Roland Sermet
The LM decided to add to its stock of small "English express" locomotives (Express anglaises), but built the next decade in its own shops. The railway increased the dimensions both in the boiler and in the cylinders.
67 : Euryale, 70 : PTgase, 73 : Emeraude, 68 : Amphitrite, 71 : Perle, 74 : Topaze, 69 : Bacchante, 72 : Rubis, 75 : Saphyr, 76 : AmTthyste
The entire class would be converted to 2-4-0s at the Paris-Lyon shops in 1873-1874; see Locobase 14409
NB: The boiler pressure setting is an estimate.
| Principal Dimensions by Steve Llanso of Middle Run Media | ||
|---|---|---|
| Class | 155 | 67 / 120 91 |
| Locobase ID | 13360 | 13361 |
| Railroad | Lyon-Mediterranee (PLM) | Lyon-Mediterranee (PLM) |
| Country | France | France |
| Whyte | 2-2-2 | 2-2-2 |
| Number in Class | 53 | 10 |
| Road Numbers | 155-207 / 51-66 | 67-76 / 120 91-120 100 |
| Gauge | Std | Std |
| Number Built | 53 | 10 |
| Builder | Robert Stephenson & Co | LM-Nimes |
| Year | 1855 | 1858 |
| Valve Gear | ||
| Locomotive Length and Weight | ||
| Driver Wheelbase (ft / m) | ||
| Engine Wheelbase (ft / m) | 15 / 4.57 | 14.99 / 4.57 |
| Ratio of driving wheelbase to overall engine wheelbase | ||
| Overall Wheelbase (engine & tender) (ft / m) | ||
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 26,455 / 12,000 | 26,455 / 12,000 |
| Weight on Drivers (lbs / kg) | 26,455 / 12,000 | 26,455 / 12,000 |
| Engine Weight (lbs / kg) | 58,312 / 26,450 | 60,693 / 27,530 |
| Tender Loaded Weight (lbs / kg) | ||
| Total Engine and Tender Weight (lbs / kg) | ||
| Tender Water Capacity (gals / ML) | ||
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | ||
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 44 / 22 | 44 / 22 |
| Geometry Relating to Tractive Effort | ||
| Driver Diameter (in / mm) | 73.40 / 1865 | 73.40 / 1865 |
| Boiler Pressure (psi / kPa) | 116 / 800 | 116 / 800 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 14.96" x 20" / 380x508 | 15.75" x 20" / 400x508 |
| Tractive Effort (lbs / kg) | 6013 / 2727.45 | 6665 / 3023.20 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.40 | 3.97 |
| Heating Ability | ||
| Tubes (number - dia) (in / mm) | ||
| Flues (number - dia) (in / mm) | - 5.039" / 128 | - 5.039" / 128 |
| Flue/Tube length (ft / m) | 11.09 / 3.38 | 11.09 / 3.38 |
| Firebox Area (sq ft / m2) | 76.96 / 7.15 | 82.24 / 7.64 |
| Grate Area (sq ft / m2) | ||
| Evaporative Heating Surface (sq ft / m2) | 876 / 81.37 | 1028 / 95.50 |
| Superheating Surface (sq ft / m2) | ||
| Combined Heating Surface (sq ft / m2) | 876 / 81.37 | 1028 / 95.50 |
| Evaporative Heating Surface/Cylinder Volume | 215.30 | 227.94 |
| Computations Relating to Power Output (More Information) | ||
| Robert LeMassena's Power Computation | ||
| Same as above plus superheater percentage | ||
| Same as above but substitute firebox area for grate area | 8927 | 9540 |
| Power L1 | 4397 | 4529 |
| Power MT | 366.42 | 377.42 |