Data from "Narrow Gauge Locomotives for India," Engineer (1 February 1935), p. 131. For a travelogue entry on Junagadh, see the 15 April 2015 entry in Swarupa's World website titled "Gujarat Travelogue v 2: Junagadh" at [], last accessed 14 April 2017.
Two of the locomotives were delivered with copper fireboxes, the other with a steel firebox. The Engineer's discussion of this design centered on the wide Belpaire firebox, which simplified manufacture because the back plate could be attached to the firebox before mounting it in the frame. In addition, most of the stays were accessible while the firebox sat on the frame. Most important, the larger grate undoubtedly came in handy when burning the low-calorie coal used on most Indian railways.
Weight of the engine and tender together was 60.575 tons (135,688 lb/61,547 kg) loaded. Adhesive weight was no higher than 58,464 lb (26,519 kg).
Junagadh (Junagarh in older texts) is a city in Gujarat State in India (northwest of Mumbai, southwest of the Gujarat capital of Ahmedabad, and about 60 km/37 miles inland from the Indian Ocean) that has as its "prime attraction ...Girnar Mountain - a gigantic five-peaked mountain of volcanic origin."
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | unknown |
| Locobase ID | 20184 |
| Railroad | Junagadh State |
| Country | India |
| Whyte | 4-6-0 |
| Number in Class | 3 |
| Road Numbers | |
| Gauge | Metre |
| Number Built | 3 |
| Builder | WG Bagnall |
| Year | 1934 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 11 / 3.35 |
| Engine Wheelbase (ft / m) | |
| Ratio of driving wheelbase to overall engine wheelbase | |
| Overall Wheelbase (engine & tender) (ft / m) | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 19,488 / 8840 |
| Weight on Drivers (lbs / kg) | / 26,519 |
| Engine Weight (lbs / kg) | / 34,546 |
| Tender Loaded Weight (lbs / kg) | 51,520 / 23,369 |
| Total Engine and Tender Weight (lbs / kg) | 51,520 / 57,915 |
| Tender Water Capacity (gals / ML) | 2640 / 10 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 4.40 / 4 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 48 / 1219 |
| Boiler Pressure (psi / kPa) | 180 / 1240 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 14.5" x 22" / 368x559 |
| Tractive Effort (lbs / kg) | 14,744 / 6687.77 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 177 - 1.75" / 44 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 11.77 / 3.59 |
| Firebox Area (sq ft / m2) | 95 / 8.83 |
| Grate Area (sq ft / m2) | 20.70 / 1.92 |
| Evaporative Heating Surface (sq ft / m2) | 1031 / 95.78 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1031 / 95.78 |
| Evaporative Heating Surface/Cylinder Volume | 245.20 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 3726 |
| Same as above plus superheater percentage | 3726 |
| Same as above but substitute firebox area for grate area | 17,100 |
| Power L1 | 5158 |
| Power MT | |