Specifications |
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Configuration:
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• Whyte | 4-8-2 |
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• UIC | ♠ 2'D1'n2 - ♥ 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. | 45+1⁄2 in (1,156 mm) |
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Trailing dia. | 30 in (762 mm) |
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Tender wheels | 30 in (762 mm) |
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Wheelbase | 55 ft 7+3⁄4 in (16,961 mm) |
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• Engine | 30 ft 9 in (9,373 mm) |
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• Leading | 6 ft (1,829 mm) |
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• Coupled | 12 ft 9 in (3,886 mm) |
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• Tender | 16 ft 6 in (5,029 mm) |
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• Tender bogie | 4 ft 6 in (1,372 mm) |
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Length:
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• Over couplers | 63 ft 2+1⁄2 in (19,266 mm) |
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Height | ♠ 12 ft 6 in (3,810 mm) ♥ 12 ft 4+3⁄4 in (3,778 mm) |
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Frame type | Plate |
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Axle load | ♠ 15 LT 2 cwt (15,340 kg) ♥ 15 LT 11 cwt (15,800 kg) |
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• Leading | ♠ 11 LT 13 cwt 2 qtr (11,860 kg) ♥ 14 LT 4 cwt (14,430 kg) |
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• 1st coupled | ♠ 14 LT 8 cwt (14,630 kg) ♥ 15 LT (15,240 kg) |
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• 2nd coupled | ♠ 15 LT 2 cwt (15,340 kg) ♥ 15 LT 11 cwt (15,800 kg) |
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• 3rd coupled | ♠ 14 LT 8 cwt 2 qtr (14,660 kg) ♥ 15 LT 1 cwt (15,290 kg) |
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• 4th coupled | ♠ 15 LT (15,240 kg) ♥ 14 LT 18 cwt (15,140 kg) |
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• Trailing | ♠ 9 LT 10 cwt (9,652 kg) ♥ 9 LT 18 cwt (10,060 kg) |
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• Tender bogie | Bogie 1: ♣ 20 LT 1 cwt (20,370 kg) ♦ 21 LT 14 cwt (22,050 kg) Bogie 2: ♣ 20 LT 10 cwt (20,830 kg) ♦ 21 LT 16 cwt (22,150 kg) |
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• Tender axle | ♣ 10 LT 5 cwt (10,410 kg) ♦ 10 LT 18 cwt (11,070 kg) |
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Adhesive weight | ♠ 58 LT 18 cwt (59,850 kg) ♥ 60 LT 10 cwt (61,470 kg) |
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Loco weight | ♠ 93 LT (94,490 kg) ♥ 84 LT 12 cwt (85,960 kg) |
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Tender weight | ♣ 40 LT 11 cwt (41,200 kg) ♦ 43 LT 10 cwt (44,200 kg) |
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Total weight | ♠♣ 133 LT 11 cwt (135,700 kg) ♠♦ 136 LT 10 cwt (138,700 kg) ♥♣ 125 LT 3 cwt (127,200 kg) ♥♦ 128 LT 1 cwt (130,100 kg) |
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Tender type | TJ (2-axle bogies) - 1446-1450 TM (2-axle bogies) - 1451-1475 TJ, TL, TM permitted |
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Fuel type | Coal |
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Fuel capacity | ♣ 6 LT (6.1 t) ♦ 8 LT 5 cwt (8.4 t) |
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Water cap. | ♣ 3,500 imp gal (15,900 L) ♦ 4,000 imp gal (18,200 L) |
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Firebox: | |
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• Type | ♠ Belpaire ♥ Round-top |
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• Grate area | ♠ 34 sq ft (3.2 m2) ♥ 37 sq ft (3.4 m2) |
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Boiler:
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• Type | ♥ Watson Standard no. 2 |
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• Pitch | ♠ 7 ft 4 in (2,235 mm) ♥ 7 ft 5+1⁄2 in (2,273 mm) |
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• Diameter | ♠ 5 ft 6+1⁄8 in (1,680 mm) ♥ 5 ft 7+1⁄2 in (1,714 mm) |
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• Tube plates | ♠ 18 ft 6 in (5,639 mm) ♥ 19 ft 4 in (5,893 mm) steel f/b 19 ft 3+5⁄8 in (5,883 mm) copper f/b |
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• Small tubes | ♠ 237: tubes 2+1⁄4 in (57 mm) ♥ 87: 2+1⁄2 in (64 mm) |
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• Large tubes | ♥ 30: 5+1⁄2 in (140 mm) |
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Boiler pressure | 190 psi (1,310 kPa) |
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Safety valve | ♠ Ramsbottom ♥ Pop |
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Heating surface: | |
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• Firebox | ♠ 139 sq ft (12.9 m2) ♥ 142 sq ft (13.2 m2) |
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• Tubes | ♠ 2,582 sq ft (239.9 m2) ♥ 1,933 sq ft (179.6 m2) |
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• Total surface | ♠ 2,721 sq ft (252.8 m2) ♥ 2,075 sq ft (192.8 m2) |
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Superheater:
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• Heating area | ♥ 434 sq ft (40.3 m2) |
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Cylinders | Two |
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Cylinder size | 21 in (533 mm) bore 24 in (610 mm) stroke |
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Valve gear | Walschaerts |
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Valve type | Murdoch's D slide |
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Couplers | Johnston link-and-pin AAR knuckle (1930s) |
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