Frank Ross & Co 0-6-0 Locomotives in Mauritius


Class Details by Steve Llanso of Sweat House Media

Class 2675 (Locobase 21036)

Data from Quote E.2675 card and photo, W G Bagnall, Ltd, Castle Engine Works, Stafford, archived in Historical Railway Images at [link], last accessed 7 July 2022 Works number was 2675 in September 1943.

This six-coupled locomotive manifested all the qualities of a very small industrial engine. A prominent smoke-arresting stack suggests its use in fire-prone rural areas while the utter absence of cab glazing implies a near-equatorial environment. All drivers were cast with counterweights.

Bagnall's quote card advised "The above Particulars and Dimensions can be modified as necessary to suit Customers [sic] special requirements." Perhaps an example of this flexibility shows in the Mauritian purchase in 1939 (works number 2603) by L Mitchell & Co, exporters, of a six-coupled tank with similar dimensions to run on a 750-mm tram road. See also Gloster & Company's purchase on behalf of Ireland Frazer & Company of an engine (works number 2827 in 1946) virtually identical to Frank Ross's 2675 for the St Antoine Estate in Port Louis, Mauritius.

Principal Dimensions by Steve Llanso of Middle Run Media
Class2675
Locobase ID21036
RailroadFrank Ross & Co
CountryMauritius
Whyte0-6-0T
Number in Class1
Road NumbersE 2675
Gauge80 cm
Number Built1
BuilderWG Bagnall
Year1943
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m) 4.60 / 1.40
Engine Wheelbase (ft / m) 4.60 / 1.40
Ratio of driving wheelbase to overall engine wheelbase1
Overall Wheelbase (engine & tender) (ft / m) 4.60 / 1.40
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)23,520 / 10,669
Engine Weight (lbs / kg)23,520 / 10,669
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)330 / 1.25
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)13 / 6.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)23.60 / 599
Boiler Pressure (psi / kPa)176 / 1210
High Pressure Cylinders (dia x stroke) (in / mm)8.25" x 12" / 210x305
Tractive Effort (lbs / kg)5177 / 2348.25
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.54
Heating Ability
Tubes (number - dia) (in / mm)
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)
Firebox Area (sq ft / m2)26 / 2.42
Grate Area (sq ft / m2) 5.50 / 0.51
Evaporative Heating Surface (sq ft / m2)200 / 18.58
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)200 / 18.58
Evaporative Heating Surface/Cylinder Volume269.38
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation968
Same as above plus superheater percentage968
Same as above but substitute firebox area for grate area4576
Power L13077
Power MT865.26

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