Specifications |
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Configuration:
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• Whyte | 4-8-2 |
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Driver | 2nd coupled axle |
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Gauge | 3 ft 6 in (1,067 mm) Cape gauge |
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Leading dia. | 30 in (762 mm) |
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Coupled dia. | 60 in (1,524 mm) |
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Trailing dia. | 34 in (864 mm) |
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Tender wheels | 34 in (864 mm) all |
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Minimum curve | 275 ft (84 m) |
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Wheelbase | JT, ET: 65 ft 6+3⁄16 in (19,969 mm) |
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• Engine | 35 ft 8 in (10,871 mm) |
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• Leading | 6 ft 10 in (2,083 mm) |
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• Coupled | 15 ft 9 in (4,801 mm) |
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• Tender | JT: 20 ft 5 in (6,223 mm) JV: 24 ft 11 in (7,595 mm) ET: 20 ft 5 in (6,223 mm) EW: 30 ft 8 in (9,347 mm) |
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• Tender bogie | JT, ET: 6 ft 2 in (1,880 mm) EW: 8 ft 8 in (2,642 mm) |
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Length:
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• Over couplers | JT, ET: 73 ft 5+15⁄16 in (22,401 mm) |
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Width | 10 ft (3,048 mm) |
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Height | 12 ft 11+1⁄2 in (3,950 mm) |
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Frame type | Bar |
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Axle load | ♠ 18 LT 2 cwt (18,390 kg) ♥ 18 LT 8 cwt (18,700 kg) ♣ 18 LT 19 cwt (19,250 kg) ♦ 18 LT 15 cwt (19,050 kg) |
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• Leading | ♠ 20 LT (20,320 kg) ♥ 19 LT 7 cwt (19,660 kg) ♣ 20 LT 12 cwt (20,930 kg) ♦ 20 LT 10 cwt (20,830 kg) |
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• 1st coupled | ♠ 17 LT 15 cwt (18,030 kg) ♥ 18 LT 1 cwt (18,340 kg) ♣ 18 LT 19 cwt (19,250 kg) ♦ 18 LT 10 cwt (18,800 kg) |
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• 2nd coupled | ♠ 18 LT 2 cwt (18,390 kg) ♥ 18 LT 8 cwt (18,700 kg) ♣ 18 LT 13 cwt (18,950 kg) ♦ 18 LT 15 cwt (19,050 kg) |
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• 3rd coupled | ♠ 18 LT 2 cwt (18,390 kg) ♥ 18 LT 8 cwt (18,700 kg) ♣ 18 LT 13 cwt (18,950 kg) ♦ 18 LT 15 cwt (19,050 kg) |
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• 4th coupled | ♠ 17 LT 15 cwt (18,030 kg) ♥ 18 LT 1 cwt (18,340 kg) ♣ 18 LT 9 cwt (18,750 kg) ♦ 18 LT 10 cwt (18,800 kg) |
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• Trailing | ♠ 16 LT 18 cwt (17,170 kg) ♥ 16 LT (16,260 kg) ♣ 18 LT 5 cwt (18,540 kg) ♦ 18 LT 6 cwt (18,590 kg) |
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• Tender bogie | Bogie 1: JT: 33 LT 18 cwt (34,440 kg) ET: 33 LT 18 cwt (34,440 kg) EW: 54 LT 14 cwt (55,580 kg) Bogie 2: JT: 35 LT 10 cwt (36,070 kg) ET: 35 LT 10 cwt (36,070 kg) EW: 54 LT (54,870 kg) |
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• Tender axle | JT: 17 LT 15 cwt (18,030 kg) JV: 14 LT 18 cwt (15,140 kg) ET: 17 LT 15 cwt (18,030 kg) EW: 18 LT (18,290 kg) |
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Adhesive weight | ♠ 71 LT 14 cwt (72,850 kg) ♥ 72 LT 18 cwt (74,070 kg) ♣ 74 LT 14 cwt (75,900 kg) ♦ 74 LT 10 cwt (75,700 kg) |
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Loco weight | ♠ 108 LT 12 cwt (110,300 kg) ♥ 108 LT 5 cwt (110,000 kg) ♣ 113 LT 11 cwt (115,400 kg) ♦ 113 LT 6 cwt (115,100 kg) |
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Tender weight | JT: 69 LT 8 cwt (70,510 kg) JV: 78 LT (79,250 kg) ET: 69 LT 8 cwt (70,510 kg) EW: 107 LT 14 cwt (109,400 kg) |
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Total weight | ♠JT 178 LT (180,900 kg) ♥JT 177 LT 13 cwt (180,500 kg) ♠JV 186 LT 12 cwt (189,600 kg) ♥JV 186 LT 5 cwt (189,200 kg) ♣JT 182 LT 19 cwt (185,900 kg) ♦ET 182 LT 14 cwt (185,600 kg) ♦EW 221 LT (224,500 kg) |
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Tender type | ♠♥♣ JT (2-axle bogies) ♠♥♣ JV (2-8-2) ♦ ET (2-axle bogies) ♦ EW (3-axle bogies) |
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Fuel type | Coal |
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Fuel capacity | JT: 14 LT (14.2 t) JV: 15 LT (15.2 t) ET: 14 LT (14.2 t) EW: 18 LT (18.3 t) |
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Water cap. | JT: 6,000 imp gal (27,300 L) JV: 7,250 imp gal (33,000 L) ET: 5,620 imp gal (25,500 L) EW: 9,200 to 9,500 imp gal (41,800 to 43,200 L) |
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Firebox: | |
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• Type | Round-top |
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• Grate area | ♠♥♦ 63 sq ft (5.9 m2) ♣ 62.5 sq ft (5.81 m2) |
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Boiler:
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• Model | Watson Standard no. 3B |
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• Type | Domeless |
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• Pitch | 9 ft 2+1⁄2 in (2,807 mm) |
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• Diameter | 6 ft 2+1⁄4 in (1,886 mm) |
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• Tube plates | 22 ft 6 in (6,858 mm) |
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• Small tubes | 136: 2+1⁄2 in (64 mm) |
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• Large tubes | 36: 5+1⁄2 in (140 mm) |
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Boiler pressure | 210 psi (1,448 kPa) |
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Safety valve | Ross-pop |
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Heating surface: | |
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• Firebox | 206 sq ft (19.1 m2) |
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• Tubes | ♠♥♦ 3,168 sq ft (294.3 m2) ♣ 3,179 sq ft (295.3 m2) |
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• Arch tubes | 26 sq ft (2.4 m2) |
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• Total surface | ♠♥♦ 3,400 sq ft (320 m2) ♣ 3,414.5 sq ft (317.22 m2) |
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Superheater:
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• Heating area | ♠♥♦ 676 sq ft (62.8 m2) ♣ 661 sq ft (61.4 m2) |
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Cylinders | Two |
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Cylinder size | 24 in (610 mm) bore 28 in (711 mm) stroke |
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Valve gear | Walschaerts |
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Valve type | Piston |
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Loco brake | Pre-war: Steam Post-war: Vacuum |
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Couplers | AAR knuckle |
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