Union Pacific 3967

Specifications
Specifications
Configuration:;
• Whyte	4-6-6-4
• UIC	(2′C)C2′ h4g
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Driver dia.	69 in (1,753 mm)
Wheelbase	60 ft 4+1⁄2 in (18.402 m) Engine ; 121 ft 10+7⁄8 in (37.157 m) Engine + tender
Adhesive weight	403,700 lb (183,115 kg)
Loco weight	627,000 lb (284,000 kg)
Tender weight	436,500 lb (198,000 kg)
Total weight	1,063,500 lb (482,400 kg)
Fuel type	Coal, oil
Fuel capacity	32 short tons (29 t; 29 long tons)
Water cap.	25,000 US gal (95,000 L; 21,000 imp gal)
Firebox:
• Grate area	132 sq ft (12 m2)
Boiler	94 in (2,400 mm)
Boiler pressure	280 lbf/in2 (1.93 MPa)
Heating surface:
• Firebox	602 sq ft (55.9 m2)
• Tubes	527 sq ft (49.0 m2)
• Flues	3,687 sq ft (342.5 m2)
• Total surface	4,795 sq ft (445.5 m2)
Superheater:;
• Heating area	2,162 sq ft (200.9 m2)
Cylinders	Four
Cylinder size	21 in × 32 in (533 mm × 813 mm)

Type and origin
Type and origin
Power type	Steam
Designer	Otto Jabelmann
Builder	American Locomotive Company (ALCO)
Build date	1942

Union Pacific 3967
Union Pacific 3967
Power type
Type and origin
Power type	Steam
Designer	Otto Jabelmann
Builder	American Locomotive Company (ALCO)
Build date	1942
Configuration:;
Specifications
Configuration:;
• Whyte	4-6-6-4
• UIC	(2′C)C2′ h4g
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Driver dia.	69 in (1,753 mm)
Wheelbase	60 ft 4+1⁄2 in (18.402 m) Engine ; 121 ft 10+7⁄8 in (37.157 m) Engine + tender
Adhesive weight	403,700 lb (183,115 kg)
Loco weight	627,000 lb (284,000 kg)
Tender weight	436,500 lb (198,000 kg)
Total weight	1,063,500 lb (482,400 kg)
Fuel type	Coal, oil
Fuel capacity	32 short tons (29 t; 29 long tons)
Water cap.	25,000 US gal (95,000 L; 21,000 imp gal)
Firebox:
• Grate area	132 sq ft (12 m2)
Boiler	94 in (2,400 mm)
Boiler pressure	280 lbf/in2 (1.93 MPa)
Heating surface:
• Firebox	602 sq ft (55.9 m2)
• Tubes	527 sq ft (49.0 m2)
• Flues	3,687 sq ft (342.5 m2)
• Total surface	4,795 sq ft (445.5 m2)
Superheater:;
• Heating area	2,162 sq ft (200.9 m2)
Cylinders	Four
Cylinder size	21 in × 32 in (533 mm × 813 mm)
Maximum speed
Performance figures
Maximum speed	70 mph (110 km/h)
Tractive effort	97,352 lbf (433.04 kN)
Factor of adh.	4.15
Operators
Career
Operators	Union Pacific Railroad
Class	4664-3
Last run	May 17, 1953
Disposition	Scrapped

Union Pacific 3967 was a 4-6-6-4 Challenger built by the American Locomotive Company in 1942 for the Union Pacific Railroad.^[1]

History

Union Pacific 3967 was constructed in 1942 by the American Locomotive Company and it was delivered to the Union Pacific Railroad.^[1]

The Engine became popular when it became the first Union Pacific Excursion Star, after it pulled an excursion for the Rocky Mountain Railroad Club from Denver, Colorado to Laramie, Wyoming on May 17, 1953.^[2]^[3]

In May of 1993, Union Pacific Heavy Challenger #3985 had masqueraded as #3967 as part of the 40th anniversary of the Rocky Mountain Railroad Club excursion, in which the original 3967 pulled the same excursion on May 17, 1953.^[4]^[3]

References

^ ^a ^b Solomon (2014), p. 130
^ Wright (1942), p. 413
^ ^a ^b "Union Pacific's 40th Anniversary Steam Excursion DVD". Pentrex. Archived from the original on May 11, 2017. Retrieved June 14, 2019.
^ "Union Pacific # 3985 OR # 3967 ?". Train Fanatics. Retrieved 2023-09-20.

History

References

Further reading