Pennsylvania Railroad Odd D 10003

Pennsylvania Railroad's Odd D #10003 was an experimental electric locomotive built in 1907 by Baldwin and Westinghouse.[1] It had a 4-4-0 wheel arrangement in the Whyte notation, or 2-B in the AAR scheme. On the PRR, class D was assigned to 4-4-0 locomotives. Production classes of locomotive were assigned a number after the letter, but one-off locomotives were simply designated "Odd".

PRR Odd D 10003
Odd D #10003
Type and origin
Power typeElectric
BuilderBaldwin and Westinghouse
Build date1907
Total produced1
Specifications
Configuration:
​
 • Whyte4-4-0
 • AAR2-B
 • UIC2'B
Gauge4 ft 8 1⁄2 in (1,435 mm) standard gauge
Wheel diameter72 in (1,800 mm)[1]
Electric system/s11 kV, AC, 25 Hz
Current pickup(s)Pantograph
Internal diagram

In testing, #10003 proved to be more stable at speed than the two class AA1 B-B locomotives the PRR had also constructed, so its 4-4-0 arrangement and high center of gravity was chosen as the design for the PRR's DD1 production locomotives.

Footnotes
  1. Soloman, Brian (2003). Electric Locomotives. Saint Paul, MN: MBI Publishing. p. 44. ISBN 978-0-7603-1359-6.CS1 maint: ref=harv (link)
gollark: IfPFAtMDaPIUStL for short.
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gollark: > happiness starts with an antenna!Not all of us are amateur radio people.
gollark: Again, you seem to just be explaining things poorly. You remind me vaguely of caveman, who seems to not be on here now.
gollark: It's kind of dodecahedral to go around complaining about people not understanding you (and implying it's some failure on their part) and then refusing to try explaining it in better ways.

References
  • Staufer, Alvin F.; Pennypacker, Bert (1962). Pennsy Power: Steam and Electric Locomotives of the Pennsylvania Railroad, 1900-1957. Research by Martin Flattley. Carollton, Ohio: Alvin F. Staufer. p. 247. ISBN 978-0-9445-1304-0.


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