Chesapeake and Ohio 1642

Specifications
Specifications
Configuration:;
• Whyte	2-6-6-6
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Leading dia.	36 in (914 mm)
Driver dia.	67 in (1,702 mm)
Trailing dia.	36 in (914 mm) (lead & intermediate axle); 43 in (1,092 mm) (trail axle)
Tender wheels	36 in (914 mm)
Minimum curve	319 ft 7+1⁄2 in (97.42 m) radius/ 18°
Wheelbase	Locomotive: 62 ft 6 in (19.05 m); Overall: 112 ft 11 in (34.42 m);
Length	Locomotive: 76 ft 8+3⁄8 in (23.38 m); Overall: 125 ft 7+7⁄8 in (38.30 m)
Width	11 ft 1 in (3.38 m)
Height	16 ft 7 in (5.05 m)
Frame type	Cast Steel
Axle load	86,700 lb (43.4 short tons)
Adhesive weight	507,900 lb (254.0 short tons)
Loco weight	771,300 lb (385.7 short tons)
Tender weight	426,100 lb or 431,700 lb
Total weight	1,183,540 to 1,208,900 lb; (592 to 604 short tons)
Tender type	25-RB
Fuel type	Coal
Fuel capacity	25 tons (50,000 lb)
Water cap.	25,000 US gal (95,000 L)
Sandbox cap.	12,000 lb (6 short tons)
Fuel consumption	Up to 8 short tons of coal / hr ; Up to 14,000 US gal of water / hr
Firebox:
• Grate area	135.20 sq ft (12.560 m2)
Boiler:;
• Model	Fire Tube
• Diameter	109 in (2,769 mm)
• Tube plates	23 ft (7 m)
Boiler pressure	260 lbf/in2 (1.79 MPa)
Safety valve	Pop, 3+1⁄2 in (89 mm) ; 4 per locomotive
Feedwater heater	Worthington SA ; 14,400 or 16,200 US gal/hr cap
Heating surface:
• Firebox	600 sq ft (56 m2)
• Tubes and flues	6,478 sq ft (602 m2)
• Total surface	7,240 sq ft (673 m2)
Superheater:;
• Type	Type E
• Heating area	3,186 sq ft (296 m2)
Cylinders	Four
Cylinder size	22.5 in × 33 in (572 mm × 838 mm)
Valve gear	Baker-long travel
Valve type	Piston valves
Valve travel	8 in (203 mm)
Valve lap	1+7⁄16 in (37 mm)
Valve lead	3⁄16 in (5 mm)
Train heating	Steam heat
Loco brake	Pneumatic, Schedule 8-ET
Train brakes	Pneumatic

Type and origin
Type and origin
	References:
Power type	Steam
Designer	Advisory Mechanical Committee
Builder	Lima Locomotive Works
Order number	1188
Serial number	8799
Model	C&O H-8

Chesapeake and Ohio 1642
Chesapeake and Ohio 1642
Power type
Type and origin
	References:
Power type	Steam
Designer	Advisory Mechanical Committee
Builder	Lima Locomotive Works
Order number	1188
Serial number	8799
Model	C&O H-8
Configuration:;
Specifications
Configuration:;
• Whyte	2-6-6-6
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Leading dia.	36 in (914 mm)
Driver dia.	67 in (1,702 mm)
Trailing dia.	36 in (914 mm) (lead & intermediate axle); 43 in (1,092 mm) (trail axle)
Tender wheels	36 in (914 mm)
Minimum curve	319 ft 7+1⁄2 in (97.42 m) radius/ 18°
Wheelbase	Locomotive: 62 ft 6 in (19.05 m); Overall: 112 ft 11 in (34.42 m);
Length	Locomotive: 76 ft 8+3⁄8 in (23.38 m); Overall: 125 ft 7+7⁄8 in (38.30 m)
Width	11 ft 1 in (3.38 m)
Height	16 ft 7 in (5.05 m)
Frame type	Cast Steel
Axle load	86,700 lb (43.4 short tons)
Adhesive weight	507,900 lb (254.0 short tons)
Loco weight	771,300 lb (385.7 short tons)
Tender weight	426,100 lb or 431,700 lb
Total weight	1,183,540 to 1,208,900 lb; (592 to 604 short tons)
Tender type	25-RB
Fuel type	Coal
Fuel capacity	25 tons (50,000 lb)
Water cap.	25,000 US gal (95,000 L)
Sandbox cap.	12,000 lb (6 short tons)
Fuel consumption	Up to 8 short tons of coal / hr ; Up to 14,000 US gal of water / hr
Firebox:
• Grate area	135.20 sq ft (12.560 m2)
Boiler:;
• Model	Fire Tube
• Diameter	109 in (2,769 mm)
• Tube plates	23 ft (7 m)
Boiler pressure	260 lbf/in2 (1.79 MPa)
Safety valve	Pop, 3+1⁄2 in (89 mm) ; 4 per locomotive
Feedwater heater	Worthington SA ; 14,400 or 16,200 US gal/hr cap
Heating surface:
• Firebox	600 sq ft (56 m2)
• Tubes and flues	6,478 sq ft (602 m2)
• Total surface	7,240 sq ft (673 m2)
Superheater:;
• Type	Type E
• Heating area	3,186 sq ft (296 m2)
Cylinders	Four
Cylinder size	22.5 in × 33 in (572 mm × 838 mm)
Valve gear	Baker-long travel
Valve type	Piston valves
Valve travel	8 in (203 mm)
Valve lap	1+7⁄16 in (37 mm)
Valve lead	3⁄16 in (5 mm)
Train heating	Steam heat
Loco brake	Pneumatic, Schedule 8-ET
Train brakes	Pneumatic
Maximum speed
Performance figures
Maximum speed	70 mph (110 km/h)
Power output	6,500–7,500 hp (4,800–5,600 kW) @ ~46 mph (74 km/h) (drawbar)
Tractive effort	110,211 lbf (490.24 kN)
Factor of adh.	4.61
Operators
Career
Operators	Chesapeake and Ohio
Class	H-8
Numbers	1642
Nicknames	Allegheny
Disposition	Scrapped

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Last edited by Qwerfjkl (bot) (talk | contribs) 13 months ago. (Update)

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Chesapeake and Ohio 1642 was a class "H-8" 2-6-6-6 steam locomotive built by the Lima Locomotive Works at Lima, Ohio for the Chesapeake and Ohio Railway.

On June 9, 1953, No. 1642 suffered a crown sheet failure and subsequent boiler explosion due to a prolonged low water condition at Hinton, WV. The crew members were killed. The locomotive was not rebuilt, as the class was undergoing retirement by then.^[2]

References

^ Huddleston, Eugene; Dixon, Thomas (1984). The Allegheny: Lima's Finest. Hundman Publishing.
^ Report No. 3520 Chesapeake & Ohio Railway Company In Re Accident At Hinton, W. VA., on June 9, 1953 (PDF) (Technical report). Interstate Commerce Commission.

[Huddleston-1] Huddleston, Eugene; Dixon, Thomas (1984). The Allegheny: Lima's Finest. Hundman Publishing.

[Report_No._3520-2] Report No. 3520 Chesapeake & Ohio Railway Company In Re Accident At Hinton, W. VA., on June 9, 1953 (PDF) (Technical report). Interstate Commerce Commission.

[1]

[2]