Ottoman Railway Beyer-Garratt Locomotives in Turkey
Class Details by Steve Llanso of Sweat House Media
Class ORC 225 (Locobase 798)
Data from Gavin Hamilton's [
]
(6 September 2005); and "Ottomanl Railway-Design 1113", Beyer-Garrrat Patent Articulated Locomotives (Manchester, England: Beyer-Peacock & Company Limited, 1931), archived on flickr's Historical Railway Images at [], et seq, p. 61
Works number was 6324 in 1927
Riding on 60-lb/yard (30-kg/metre) rail, this Garratts worked the Azazieh Pass, which had 818-ft radius curves and 2.8% ruling grade. some info from [], a Turkish website (accessed 17 June 2003), which quotes from The Beyer-Peacock Quarterly Reviewÿ, January 1931, p. 38. BP's Garratt pub reported that the "extremely satisfactory" 225 could haul 350 tons "up the difficult section while it is stated that a further 50 tons can be taken up with ease should traffic requirements render this desirable.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | ORC 225 |
| Locobase ID | 798 |
| Railroad | Ottoman Railway (TCDD) |
| Country | Turkey |
| Whyte | 2-8-0+0-8-2 |
| Number in Class | 1 |
| Road Numbers | 225 |
| Gauge | Std |
| Number Built | 1 |
| Builder | Beyer, Peacock |
| Year | 1927 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 31.50 / 9.60 |
| Engine Wheelbase (ft / m) | 46.50 / 14.17 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.68 |
| Overall Wheelbase (engine & tender) (ft / m) | 81.17 / 24.74 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 32,480 / 14,733 |
| Weight on Drivers (lbs / kg) | 258,048 / 117,049 |
| Engine Weight (lbs / kg) | 314,048 / 142,450 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | 314,048 / 142,450 |
| Tender Water Capacity (gals / ML) | 5000 / 18.94 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 9 / 8.20 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 54 / 27 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 50.50 / 1283 |
| Boiler Pressure (psi / kPa) | 180 / 1240 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 17.5" x 26" / 445x660 (4) |
| Tractive Effort (lbs / kg) | 48,248 / 21884.95 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.35 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 368 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 12.92 / 3.94 |
| Firebox Area (sq ft / m2) | 202 / 18.77 |
| Grate Area (sq ft / m2) | 48.50 / 4.51 |
| Evaporative Heating Surface (sq ft / m2) | 2691 / 250 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 2691 / 250 |
| Evaporative Heating Surface/Cylinder Volume | 185.89 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 8730 |
| Same as above plus superheater percentage | 8730 |
| Same as above but substitute firebox area for grate area | 36,360 |
| Power L1 | 3873 |
| Power MT | 264.71 |