Pennsylvania Railroad Odd D 10003

PRR Odd D 10003

Odd D #10003

Type and origin
Power type	Electric
Builder	Baldwin and Westinghouse
Build date	1907
Total produced	1

Specifications
Configuration:
• Whyte	4-4-0
• AAR	2-B
• UIC	2'B
Gauge	4 ft 8 ¹⁄₂ in (1,435 mm) standard gauge
Wheel diameter	72 in (1,800 mm)^[1]
Electric system(s)	11 kV, AC, 25 Hz
Current source	Pantograph

Internal diagram

Pennsylvania Railroad's Odd D #10003 was an experimental electric locomotive built in 1907 by Baldwin and Westinghouse.^[1] It had an 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".

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 2 Soloman, Brian (2003). Electric Locomotives. Saint Paul, MN: MBI Publishing. p. 44. ISBN 978-0-7603-1359-6.

References

Staufer, Alvin F.; Pennypacker, Bert (1962). Pennsy Power: Steam and Electric Locomotives of the Pennsylvania Railroad, 1900-1957. Research by Martin Flattley. Carollton, OH: Alvin F. Staufer. p. 247. ISBN 978-0-9445-1304-0. LCCN 62020878. OCLC 602543182.

External links

LIRR Early Electric Engines (TrainsAreFun.com)

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