SP&S Class A1

SP&S class A-1[1]
Power type Steam
Builder Manchester Locomotive Works
Build date July, 1907
Configuration 0-6-0
Gauge 4 ft 8 1⁄2 in (1,435 mm)
Driver diameter 51 in (1.30 m)
Locomotive weight 150,000 Lbs (68 Metric Tonnes)
Fuel type Oil
Boiler pressure 180 lbf/in² (1,723 kPa)
Cylinders 2
Cylinder size 20x26 Inches
Tractive effort 31,200 lbf
Career Spokane, Portland and Seattle Railway
Class A-1
Locale United States

The SP&S Class A-1 steam locomotives were a group of 5 identical locomotives. They were used in the rail yards at Portland, Oregon and Vancouver, Washington from 1907 to 1952. They were replaced with Diesel-Electric switch locomotives.

Contents

Background

In 1907, the new SP&S needed equipment for regular operations. Company officials wanted 25 freight locomotives and two switch locomotives to start with.[2] The president of the Great Northern Ry advised SP&S officials that his railroad could contribute excess engines.[3] Because of this, only five switch locomotives were purchased for use in the terminal yards in Portland and Vancouver.[4]

Design Features

Construction History

All five locomotives in Class A-1 were built by the Manchester plant of American Locomotive Works. Because of the availability of spare parts from the Northern Pacific in Portland OR and Pasco and Vancouver WA[5] these locomotives were identical to Northern Pacific class L-9 switch locomotives.[6]

Operational history

All five locomotives were delivered to the SP&S in February 1908.[7] They were initially used in work service completing the North Bank line from Portland to Spokane.[8] Upon completion of the main line, these locomotives were transferred to the terminals for switching service. In late 1942 and Early 1943 all 5 locomotives were assigned to the Portland Terminal yards as switch locomotives.[9] In 1946 locomotive number 2 was sold to the City of Prineville Railway.[10] With the arrival of SW-9 switch engines 43-45 in 1951 [11] the remaining A-1 class steamers were retired in 1952.

Numbering

These locomotives were numbered 1 to 5

Disposition

Locomotive number 1 was scrapped April 25, 1952. Locomotive number 2 was sold to the City of Prineville Railway and renumbered as their number 7 July 31, 1946. Locomotive number 3 was scrapped January 24, 1952. Locomotive number 4 was scrapped April 25, 1951. Locomotive number 5 was scrapped January 24, 1952.[12]

Footnotes

See also

References

  1. ^ Gartner, John T: "North Bank Road, The Spokane Portland and Seattle Railway", Page 206, WSU Press, 1990
  2. ^ Gartner, John T: "North Bank Road, The Spokane Portland and Seattle Railway", Page 14, WSU Press, 1990
  3. ^ Gartner, John T: "North Bank Road, The Spokane Portland and Seattle Railway", Page 14, WSU Press, 1990
  4. ^ Gartner, John T: "North Bank Road, The Spokane Portland and Seattle Railway", Page 14, WSU Press, 1990
  5. ^ Gartner, John T: "North Bank Road, The Spokane Portland and Seattle Railway", Page 14, WSU Press, 1990
  6. ^ Wood, Charles R and Dorothy: "Spokane Portland and Seattle Railway", Page 151, Superior Publishing Co, 1974
  7. ^ Gartner, John T: "North Bank Road, The Spokane Portland and Seattle Railway", Page 16, WSU Press, 1990
  8. ^ Gartner, John T: "North Bank Road, The Spokane Portland and Seattle Railway", Page 16, WSU Press, 1990
  9. ^ "The Northwest's own Railway, 1998 Numbers 3 and 4", Page 9, The Spokane Portland and Seattle Railway Historical Society, 1998
  10. ^ Gartner, John T: "North Bank Road, The Spokane Portland and Seattle Railway", Page 206, WSU Press, 1990
  11. ^ Gartner, John T: "North Bank Road, The Spokane Portland and Seattle Railway", Page 70, WSU Press, 1990
  12. ^ Gartner, John T: "North Bank Road, The Spokane Portland and Seattle Railway", Page 206, WSU Press, 1990

Further reading

External links

Steam Locomotives

Class A1 · Class A2 · Class A3

Class D-1 · Class D-2 · Class D-3 · Class D-4 · Class D-5 · Class D-6 · Class D-7

Class M-1 · Class M-2

Class N-1 · Class N-2 · Class N-3 · Class N-4 · Class N-5 · Class N-6 · Class N-7

Class F-1

Class O-1 · Class O-2 · Class O-3 · Class O-4

Class C-1

Class H-1

Class Z-6 · Class Z-8
Diesel Locomotives