Pennsylvania Railroad class D3

4 ft 8+1⁄2 in (1,435 mm)Leading dia.28 in (711 mm) (D2a)[1]Driver dia.62 in (1,575 mm)[1]Wheelbase22 ft 5+5⁄8 in (6.85 m)[1]Length54 ft 5.44 in (16.60 m)[1]Width9 ft 0.94 in (2.77 m)[1]Height14 ft 8 in (4.47 m)[1]Adhesive weight50,950 lb (23.1 tonnes)[1]Loco weight79,100 lb (35.9 tonnes)[1]Tender weight51,400 lb (23.3 tonnes)[1]Total weight130,500 lb (59.2 tonnes)[1]Tender typeEight-wheel with water scoopFuel typeSoft coalFuel capacity8,000 lb (3.6 tonnes)[1]Water cap.2,400 US gal (9,100 L; 2,000 imp gal)[1]

The Pennsylvania Railroad's steam locomotive class D3 (formerly Class C, pre-1895) comprised sixty-seven 4-4-0 locomotives intended for general passenger and freight service, constructed at the railroad's own Altoona Works (now owned by Norfolk Southern) during 1869–1881.[2] They were the third standardized class of locomotives on the railroad and the most numerous of the early standard types; they shared many parts with other standard classes.[3]

This design differed from the Class A (later D1) mainly in its smaller drivers for greater tractive effort for freight haulage. Like all the early standardized 4-4-0s on the PRR, the Class C had a wagon-top boiler with steam dome and a firebox between the two driving axles.[2][4]

References

  1. ^ a b c d e f g h i j k l Pennsylvania Railroad. "Class D3 diagram". PRR.Railfan.net. Retrieved 2014-01-08.
  2. ^ a b "PRR Steam Roster". Northeast Rails. Retrieved 2014-01-08.
  3. ^ Dredge, James (1879). The Pennsylvania Railroad. London: Engineering magazine.
  4. ^ Warner, Paul T. (1924). Motive Power Development on the Pennsylvania Railroad System. Philadelphia: Baldwin Locomotive Works.
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Pennsylvania Railroad locomotives
   
A (0-4-0):
B (0-6-0):
C (0-8-0):
  • C1
  • C29
  • C30
  • C31
D (4-4-0):
E (4-4-2):
F (2-6-0):
  • F1
  • F2
  • F3
  • F21
  • F22
  • F23
  • F24
  • F25
  • F26
  • F27
  • F30
  • F31
  • F61
G (4-6-0):
  • G1
  • G2
  • G3
  • G4
  • G5
  • G6
  • G53
H (2-8-0):
I (2-10-0):
J (2-6-2 and 2-10-4):
K (4-6-2):
L (2-8-2):
M (4-8-2):
N (2-10-2):
O (4-4-4):
P (4-6-4):
Q (4-6-4-4 and 4-4-6-4):
R (4-8-4):
S (6-4-4-6 and 6-8-6):
T (4-4-4-4):
Articulated steam locomotives:
Articulated electric locomotives:
Non-standard: