Specifications |
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Configuration:
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• Whyte | 4-8-2 (Mountain) |
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• UIC | 2'D1'h2 |
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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. | 28+1⁄2 in (724 mm) |
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Coupled dia. | 54 in (1,372 mm) |
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Trailing dia. | 34 in (864 mm) |
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Tender wheels | ♣♦ 34 in (864 mm) |
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Wheelbase | ♦ 58 ft 8+3⁄4 in (17,901 mm) |
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• Axle spacing (Asymmetrical) | 1-2: 4 ft 10 in (1,473 mm) 2-3: 4 ft 9 in (1,448 mm) 3-4: 4 ft 10 in (1,473 mm) |
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• Engine | 32 ft 3 in (9,830 mm) |
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• Leading | 6 ft 4 in (1,930 mm) |
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• Coupled | 14 ft 5 in (4,394 mm) |
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• Tender | ♣ 20 ft 5 in (6,223 mm) ♦ 16 ft 9 in (5,105 mm) |
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• Tender bogie | ♣ 6 ft 2 in (1,880 mm) ♦ 4 ft 7 in (1,397 mm) |
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Length:
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• Over couplers | ♦ 67 ft 3+5⁄8 in (20,514 mm) |
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Height | 12 ft 10+7⁄8 in (3,934 mm) |
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Frame type | Bar |
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Axle load | ♠ 13 LT 8 cwt (13,620 kg) ♥ 13 LT 13 cwt (13,870 kg) |
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• Leading | ♠ 14 LT 5 cwt (14,480 kg) ♥ 14 LT 7 cwt (14,580 kg) |
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• 1st coupled | ♠ 13 LT 3 cwt (13,360 kg) ♥ 13 LT 8 cwt (13,620 kg) |
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• 2nd coupled | ♠ 13 LT 8 cwt (13,620 kg) ♥ 13 LT 3 cwt (13,360 kg) |
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• 3rd coupled | ♠ 13 LT 8 cwt (13,620 kg) ♥ 13 LT 13 cwt (13,870 kg) |
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• 4th coupled | ♠ 13 LT 3 cwt (13,360 kg) ♥ 13 LT 8 cwt (13,620 kg) |
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• Trailing | ♠ 11 LT (11,180 kg) ♥ 11 LT 4 cwt (11,380 kg) |
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• Tender bogie | Bogie 1: ♣ 32 LT 18 cwt (33,430 kg) ♦ 27 LT 10 cwt (27,940 kg) Bogie 2: ♣ 33 LT 2 cwt (33,630 kg) ♦ 23 LT 11 cwt (23,930 kg) |
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• Tender axle | ♣ 16 LT 11 cwt (16,820 kg) ♦ 13 LT 15 cwt (13,970 kg) |
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Adhesive weight | ♠ 53 LT 2 cwt (53,950 kg) ♥ 53 LT 12 cwt (54,460 kg) |
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Loco weight | ♠ 78 LT 7 cwt (79,610 kg) ♥ 79 LT 3 cwt (80,420 kg) |
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Tender weight | ♣ 66 LT (67,060 kg) ♦ 51 LT 1 cwt (51,870 kg) |
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Total weight | ♠♣ 144 LT 7 cwt (146,700 kg) ♥♣ 145 LT 3 cwt (147,500 kg) ♠♦ 129 LT 8 cwt (131,500 kg) ♥♦ 130 LT 4 cwt (132,300 kg) |
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Tender type | ♣ MT (2-axle bogies) ♦ MP1 (2-axle bogies) MP, MP1, MR, MT, MX, MY, MY1 permitted |
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Fuel type | Coal |
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Fuel capacity | ♣ 12 LT (12.2 t) ♦ 10 LT (10.2 t) |
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Water cap. | ♣ 6,000 imp gal (27,300 L) ♦ 4,250 imp gal (19,300 L) |
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Firebox: | |
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• Type | Round-top |
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• Grate area | 36 sq ft (3.3 m2) |
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Boiler:
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• Model | Watson Standard no. 1A |
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• Pitch | 8 ft (2,438 mm) |
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• Diameter | 5 ft (1,524 mm) |
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• Tube plates | 20 ft 2 in (6,147 mm) |
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• Small tubes | 76: 2+1⁄2 in (64 mm) |
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• Large tubes | 24: 5+1⁄2 in (140 mm) |
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Boiler pressure | 200 psi (1,379 kPa) |
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Safety valve | Pop |
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Heating surface: | |
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• Firebox | 123 sq ft (11.4 m2) |
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• Tubes | 1,700 sq ft (160 m2) |
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• Arch tubes | 16 sq ft (1.5 m2) |
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• Total surface | 1,839 sq ft (170.8 m2) |
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Superheater:
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• Heating area | 404 sq ft (37.5 m2) |
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Cylinders | Two |
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Cylinder size | 21 in (533 mm) bore 26 in (660 mm) stroke |
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Valve gear | Rotary cam |
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Valve type | Poppet |
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Couplers | AAR knuckle |
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