Specifications |
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Configuration:
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• Whyte | 2-6-2+2-6-2 |
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• UIC | 1'C1'+1'C1'h4t |
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Driver | 3rd & 4th coupled axles |
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Gauge | 2 ft (610 mm) narrow |
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Leading dia. | 21 in (533 mm) |
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Coupled dia. | 33 in (838 mm) |
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Trailing dia. | 21 in (533 mm) |
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Minimum curve | 160 ft (49 m) |
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Wheelbase | 43 ft 3 in (13,183 mm) |
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• Engine | 13 ft 10+1⁄2 in (4,229 mm) each |
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• Coupled | 6 ft 3 in (1,905 mm) each |
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Pivot centres | 23 ft 9 in (7,239 mm) |
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Length:
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• Over couplers | 48 ft 5+1⁄4 in (14,764 mm) |
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Width | 7 ft (2,134 mm) |
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Height | 10 ft 4 in (3,150 mm) |
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Frame type | Bar |
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Axle load | ♠ 6 LT 18 cwt (7,011 kg) ♣ 6 LT 17 cwt 3 qtr (6,998 kg) |
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• Leading | ♠ 6 LT 10 cwt (6,604 kg) front 5 LT 14 cwt (5,791 kg) rear ♣ 6 LT 7 cwt 2 qtr (6,477 kg) front 6 LT 7 cwt 1 qtr (6,465 kg) rear |
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• 1st coupled | ♠ 6 LT 18 cwt (7,011 kg) ♣ 6 LT 14 cwt 3 qtr (6,846 kg) |
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• 2nd coupled | ♠ 6 LT 6 cwt (6,401 kg) ♣ 6 LT 17 cwt 3 qtr (6,998 kg) |
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• 3rd coupled | ♠ 6 LT 4 cwt (6,299 kg) ♣ 6 LT 15 cwt (6,858 kg) |
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• 4th coupled | ♠ 6 LT 15 cwt (6,858 kg) ♣ 6 LT 14 cwt 2 qtr (6,833 kg) |
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• 5th coupled | ♠ 6 LT 17 cwt (6,960 kg) ♣ 6 LT 14 cwt (6,808 kg) |
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• 6th coupled | ♠ 6 LT 1 cwt (6,147 kg) ♣ 6 LT 14 cwt 3 qtr (6,846 kg) |
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• Trailing | ♠ 3 LT 14 cwt (3,759 kg) front 3 LT 19 cwt (4,013 kg) rear ♣ 4 LT 1 cwt 1 qtr (4,128 kg) front 3 LT 10 cwt (3,556 kg) rear |
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Adhesive weight | ♠ 39 LT 1 cwt (39,680 kg) ♣ 40 LT 10 cwt 3 qtr (41,190 kg) |
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Loco weight | ♠ 59 LT 2 cwt (60,050 kg) ♣ 61 LT 5 cwt 2 qtr (62,260 kg) |
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Fuel type | Coal |
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Fuel capacity | ♠ 4 LT (4.1 t) ♣ 6 LT 4 cwt (6.3 t) |
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Water cap. | ♥ 1,285 imp gal (5,840 L) front 540 imp gal (2,450 L) rear ♣ 1,325 imp gal (6,020 L) front ♦ 1,325 imp gal (6,020 L) front 540 imp gal (2,450 L) rear |
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Firebox: | |
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• Type | Round-top |
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• Grate area | 19.5 sq ft (1.81 m2) |
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Boiler:
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• Pitch | 5 ft 5 in (1,651 mm) |
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• Diameter | 4 ft 7+3⁄4 in (1,416 mm) |
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• Tube plates | 9 ft 3+5⁄8 in (2,835 mm) |
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• Small tubes | 152: 1+3⁄4 in (44 mm) |
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• Large tubes | 15: 5+1⁄2 in (140 mm) |
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Boiler pressure | 180 psi (1,241 kPa) |
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Safety valve | Pop |
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Heating surface: | |
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• Firebox | 82.1 sq ft (7.63 m2) |
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• Tubes | 839 sq ft (77.9 m2) |
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• Total surface | 921.1 sq ft (85.57 m2) |
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Superheater:
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• Heating area | 149 sq ft (13.8 m2) |
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Cylinders | 4 |
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Cylinder size | 12 in (305 mm) bore 16 in (406 mm) stroke |
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Valve gear | Walschaerts |
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Valve type | Piston |
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Couplers | Bell-and-hook (Cape) Johnston link-and-pin (Natal) |
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