| Chicago, Burlington and Quincy 5632 |
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CB&Q No. 5632 idling in August 1964 |
| Type and origin |
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| Power type | Steam |
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| Builder | Chicago, Burlington and Quincy Railroad's West Burlington, Iowa shops |
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| Serial number | 6610-7 |
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| Build date | August 1940 |
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| Specifications |
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Configuration:
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| • Whyte | 4-8-4 |
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| • UIC | 2′D2′ h2 |
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| Gauge | 4 ft 8+1⁄2 in (1,435 mm) standard gauge |
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| Leading dia. | 37 in (940 mm) |
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| Driver dia. | 74 in (1,880 mm) |
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| Trailing dia. | 43 in (1,092 mm) |
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| Wheelbase | Loco & tender: 90.69 ft (27.64 m) |
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| Length | 103 ft 3+1⁄8 in (31.47 m) |
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| Width | 10 ft 7 in (3.23 m) |
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| Height | 16 ft 2 in (4.93 m) |
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| Axle load | 69,757.5 lb (31,641.5 kg) |
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| Adhesive weight | 279,030 lb (126,570 kg) |
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| Loco weight | 474,620 lb (215,280 kg) |
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| Tender weight | 359,000 lb (163,000 kg) |
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| Total weight | 833,620 lb (378,120 kg) |
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| Fuel type | Fuel oil |
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| Fuel capacity | 7,300 US gal (28,000 L; 6,100 imp gal) |
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| Water cap. | 18,000 US gal (68,000 L; 15,000 imp gal) |
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| Firebox: | |
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| • Grate area | 106.50 sq ft (9.894 m2) |
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| Boiler pressure | 250 lbf/in2 (1.72 MPa) |
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| Heating surface: | |
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| • Firebox | 433 sq ft (40.2 m2) |
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Superheater:
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| • Heating area | 2,403 sq ft (223.2 m2) |
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| Cylinders | Two |
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| Cylinder size | 28 in × 30 in (711 mm × 762 mm) |
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| Valve gear | Baker |
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| Valve type | Piston valves |
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| Performance figures |
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| Maximum speed | Over 75 mph (121 km/h) |
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| Power output | 4,100 hp (3,100 kW) |
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| Tractive effort | 67,541 lbf (300.44 kN)
80,741 lbf (359.15 kN) with booster |
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| Factor of adh. | 4.13 |
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| Career |
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| Operators | Chicago, Burlington and Quincy Railroad |
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| Class | O-5B |
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| Number in class | 5632 |
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| Nicknames | The World’s Largest Brass Model |
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| First run | August 1940 |
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| Retired | November 1, 1964 (excursion service) |
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| Scrapped | November 1972 |
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| Disposition | Scrapped |
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Chicago, Burlington and Quincy 5632 was an O-5B class 4-8-4 “Northern” built in the CB&Q's shops in August 1940. It was used to pull mainline passenger and freight trains before it eventually became famous for pulling a plethora of excursion trains for the CB&Q's steam excursion program. By the time the program ended in 1966, No. 5632 was disassembled for an unfinished overhaul, and was subsequently sold to Chicago area railfan Richard Jensen.
The locomotive was moved inside a Chicago and Western Indiana Railroad (C&WI) roundhouse for restoration. In 1969, No. 5632 was evicted from the roundhouse and illegally moved to a scrapyard. Upon entry, the locomotive derailed on a curve, resulting in its scrapping in 1972 and a subsequent lawsuit between Jensen and the C&WI.
