Pennsylvania Railroad class E6

Specifications
Specifications
Configuration:;
• Whyte	4-4-2
• UIC	2'B1'
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Leading dia.	36 in (914 mm)
Driver dia.	80 in (2,032 mm)
Trailing dia.	50 in (1,270 mm)
Wheelbase	29 ft 7+1⁄2 in (9.030 m)
Length	41 ft 3+1⁄2 in (12.586 m) (locomotive only); 72 ft 6 in (22.10 m) (including tender)
Width	10 ft 0 in (3.05 m)
Height	15 ft 0 in (4.57 m)
Axle load	66,000 lb (30,000 kg)
Adhesive weight	136,000 lb (62,000 kg)
Loco weight	243,600 lb (110,500 kg)
Total weight	401,600 lb (182,200 kg)
Fuel type	Soft coal
Fuel capacity	25,000 lb (11,000 kg)
Water cap.	7,000 US gal (26,000 L; 5,800 imp gal)
Firebox:
• Grate area	55.13 sq ft (5.122 m2)
Boiler pressure	205 psi (1.41 MPa)
Heating surface:
• Firebox	218 sq ft (20.3 m2)
• Tubes	1,900.66 sq ft (176.577 m2)
• Flues	777.54 sq ft (72.236 m2)
• Total surface	2,896.20 sq ft (269.066 m2)
Superheater:;
• Heating area	980 sq ft (91 m2) (E6s only)
Cylinders	2
Cylinder size	26 in × 23+1⁄2 in (660 mm × 597 mm)
Valve gear	Walschaert
Valve type	piston valves

Type and origin
Type and origin
Power type	Steam
Designer	Alfred W. Gibbs
Builder	PRR Juniata Shops
Build date	1910–1914
Total produced	83

PRR E6s
PRR E6s
	E6s #1067 in its builder's photograph.
Power type
Type and origin
Power type	Steam
Designer	Alfred W. Gibbs
Builder	PRR Juniata Shops
Build date	1910–1914
Total produced	83
Configuration:;
Specifications
Configuration:;
• Whyte	4-4-2
• UIC	2'B1'
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Leading dia.	36 in (914 mm)
Driver dia.	80 in (2,032 mm)
Trailing dia.	50 in (1,270 mm)
Wheelbase	29 ft 7+1⁄2 in (9.030 m)
Length	41 ft 3+1⁄2 in (12.586 m) (locomotive only); 72 ft 6 in (22.10 m) (including tender)
Width	10 ft 0 in (3.05 m)
Height	15 ft 0 in (4.57 m)
Axle load	66,000 lb (30,000 kg)
Adhesive weight	136,000 lb (62,000 kg)
Loco weight	243,600 lb (110,500 kg)
Total weight	401,600 lb (182,200 kg)
Fuel type	Soft coal
Fuel capacity	25,000 lb (11,000 kg)
Water cap.	7,000 US gal (26,000 L; 5,800 imp gal)
Firebox:
• Grate area	55.13 sq ft (5.122 m2)
Boiler pressure	205 psi (1.41 MPa)
Heating surface:
• Firebox	218 sq ft (20.3 m2)
• Tubes	1,900.66 sq ft (176.577 m2)
• Flues	777.54 sq ft (72.236 m2)
• Total surface	2,896.20 sq ft (269.066 m2)
Superheater:;
• Heating area	980 sq ft (91 m2) (E6s only)
Cylinders	2
Cylinder size	26 in × 23+1⁄2 in (660 mm × 597 mm)
Valve gear	Walschaert
Valve type	piston valves
Maximum speed
Performance figures
Maximum speed	75 mph (121 km/h)
Tractive effort	31,275 lbf (139.12 kN)
Factor of adh.	4.35
Operators
Career
Operators	Pennsylvania Railroad, Pennsylvania-Reading Seashore Lines, Long Island Rail Road
Class	E6s
Preserved	One preserved (No. 460)
Disposition	PRR 460 on display, remainder scrapped

The Pennsylvania Railroad Class E6 was the final type of 4-4-2 "Atlantic" locomotive built for the company, and second only to the Milwaukee Road's streamlined class A in size, speed and power. Although quickly replaced on the fastest trains by the larger K4s Pacifics, the E6 remained a popular locomotive on lesser services and some lasted until the end of steam on the PRR. One, #460, called the Lindbergh Engine, is preserved at the Railroad Museum of Pennsylvania. It was moved indoors to begin preparations for restoration on March 17, 2010. On January 10, 2011, PRR #460 was moved to the museum's restoration shop for a two- to three-year project, estimated to cost $350,000. The engine is listed in the National Register of Historic Places.