Pennsylvania Railroad class D14

Specifications
Specifications
Configuration:;
• Whyte	4-4-0
• UIC	2′B
Gauge	4 ft 8+1⁄2 in (1,435 mm)
Leading dia.	36 in (914 mm)
Driver dia.	78 in (1,981 mm) (D14); 80 in (2,032 mm) (D14a); 68 in (1,727 mm) (D14b/c)
Wheelbase	22 ft 8+1⁄2 in (6.92 m)
Length	57 ft 6+1⁄4 in (17.53 m) (including tender)
Height	15 ft (4.57 m)
Fuel type	Coal
Fuel capacity	6.8 t (15,000 lb)
Tender cap.	11,356 L (3,000 U.S. gal)
Cylinders	Two, outside
Cylinder size	483 mm × 610 mm (19.0 in × 24.0 in)
Valve gear	Stephenson
Valve type	Piston valves
Loco brake	Westinghouse air brake
Train brakes	Westinghouse air brake

Type and origin
Type and origin
Power type	Steam
Builder	PRR Altoona Works
Build date	1893–1894
Total produced	22

PRR D14
PRR D14
	PRR D14a #1651 in its builders’ photograph
Power type
Type and origin
Power type	Steam
Builder	PRR Altoona Works
Build date	1893–1894
Total produced	22
Configuration:;
Specifications
Configuration:;
• Whyte	4-4-0
• UIC	2′B
Gauge	4 ft 8+1⁄2 in (1,435 mm)
Leading dia.	36 in (914 mm)
Driver dia.	78 in (1,981 mm) (D14); 80 in (2,032 mm) (D14a); 68 in (1,727 mm) (D14b/c)
Wheelbase	22 ft 8+1⁄2 in (6.92 m)
Length	57 ft 6+1⁄4 in (17.53 m) (including tender)
Height	15 ft (4.57 m)
Fuel type	Coal
Fuel capacity	6.8 t (15,000 lb)
Tender cap.	11,356 L (3,000 U.S. gal)
Cylinders	Two, outside
Cylinder size	483 mm × 610 mm (19.0 in × 24.0 in)
Valve gear	Stephenson
Valve type	Piston valves
Loco brake	Westinghouse air brake
Train brakes	Westinghouse air brake
Power output
Performance figures
Power output	836 hp (623 kW)
Tractive effort	71.7 kN (16,100 lbf)
Retired
Career
Retired	1900-1955
Scrapped	1905-1955

The PRR class D14 was a 4-4-0 steam locomotive built for the Pennsylvania Railroad.^[3] They were originally designated class P in the PRR's pre-1895 classification scheme. Twenty-two locomotives were built at the PRR's Altoona Works (now owned by Norfolk Southern); six in 1893 with 78-inch (1,981 mm) driving wheels, and sixteen in 1894 with 80-inch (2,032 mm) drivers, classified D14a.^[1] Later, all sixteen class D14a were rebuilt to class D14b with 68-inch (1,727 mm) drivers for secondary service after they were replaced in top-flight express service, while three of the six class D14 were similarly rebuilt to class D14c.^[1]

Withdrawal

All were withdrawn and scrapped between 1905 and 1955.

References

^ ^a ^b ^c ^d ^e ^f Chamberlin, Clint. "PRR Steam Roster". Northeast Rails. Retrieved 2007-12-30.
^ ^a ^b ^c ^d ^e Pennsylvania Railroad. "PRR D14 Diagram". PRR.Railfan.net. Retrieved 2007-12-31.
^ Staufer, Alvin F. & Pennypacker, Bert (1962). Pennsy Power: Steam and Electric Locomotives of the Pennsylvania Railroad, 1900–1957. Staufer. LCCN 62020878.

[prr-roster-1] ^ ^a ^b ^c ^d ^e ^f Chamberlin, Clint. "PRR Steam Roster". Northeast Rails. Retrieved 2007-12-30.

[diagram-2] Pennsylvania Railroad. "PRR D14 Diagram". PRR.Railfan.net. Retrieved 2007-12-31.

[pennsypower-3] Staufer, Alvin F. & Pennypacker, Bert (1962). Pennsy Power: Steam and Electric Locomotives of the Pennsylvania Railroad, 1900–1957. Staufer. LCCN 62020878.

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