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Great Northern Y-1

  (Redirected from PRR FF2)

The Great Northern Railway's class Y-1 comprised eight electric locomotives with AAR 1-C+C-1 wheel arrangements. The locomotives were used on the 73-mile (117 km) electrified portion of the railroad, from Wenatchee, Washington to Skykomish, Washington, including the Cascade Tunnel.

Great Northern Railway Y-1
Pennsylvania Railroad FF2
Great Northern electric locomotive Y-1 1927.JPG
A GN Y-1 locomotive in 1927
Type and origin
Power typeElectric
BuilderAlcoGeneral Electric
ModelGE: 1-C+C-1-410/518-E6GE290A-11000V
Build date1927 (2), 1928 (2), 1930 (4)
Total produced8
Specifications
Configuration:
 • AAR1-C+C-1
 • UIC(1′Co)+(Co1′)
 • Commonwealth1Co+Co1
Gauge4 ft 8 12 in (1,435 mm) standard gauge
Adhesive weightc. 410,000 lb (186,000 kg; 186.0 t)
Loco weight5010–5011: 518,250 lb (235,100 kg; 235.1 t)
5012–5017: 527,200 lb (239,100 kg; 239.1 t)
Electric system/s11 kV AC, 25 Hz overhead
Current pickup(s)Pantograph
TransmissionMotor–generator supplied direct current fed to 6 traction motors.
Performance figures
Power output3,000 hp (2.24 MW) (continuous)
3,300 hp (2.46 MW) (one hour)
Career
Operators
Class
  • GN: Y-1
  • PRR FF2
Numbers
  • GN: 5010–5017
  • PRR: 1–7
Last run
  • GN: 1956
  • PRR: 1966
Scrapped1957 (1), 1960 (1), 1962 (1), 1966 (5)
DispositionAll scrapped

The 3,000 horsepower (2.2 MW) locomotives were built at Schenectady, New York, with car bodies manufactured by American Locomotive Company and electrical components supplied by General Electric. They used motor-generator sets to rectify the alternating current line voltage into direct current for their traction motors.

The GN numbered the units 5010–5017 and classified them Y-1. After being involved in a wreck at Tonga, Washington in July 1945, the 5011 was rebuilt with a streamlined appearance and EMD F-unit cabs; the GN reclassified it as Y-1a.

In 1956, the GN dieselized operations through the Cascade Tunnel. The electrical system was decommissioned, and the Y-1 locomotives were sold to the Pennsylvania Railroad, who classified them as FF2. GN 5011 was broken up for spares, and the remaining seven locomotives were overhauled and converted to PRR standards and then placed into service, being assigned numbers 1–7 on the PRR. They lasted a few more years on the PRR, and were all scrapped between 1957 and 1966.

Fleet rosterEdit

ALCO serial GE serial Build date GN No. PRR No. Scrap date
67022 10160 August 1927 5010 1 1966
67023 10161 September 1927 5011 1957
67542 10537 September 1928 5012 2 1962
67543 10538 July 1928 5013 3 1966
68272 11149 August 1930 5014 4 1960
68273 11150 August 1930 5015 5 1966
68274 11151 August 1930 5016 6 1966
68275 11152 August 1930 5017 7 1966

ReferencesEdit

  • Keyes, Norman C., Jr.; Middleton, Kenneth R. (Autumn 1980). "The Great Northern Railway Company: All-Time Locomotive Roster, 1861–1970". Railroad History. Boston, Mass.: Railway and Locomotive Historical Society. 143: 117. JSTOR 43523930.
  • Pennsylvania Railroad. "FF2". PRR Locomotive Diagrams. Retrieved 2006-01-05. (Simple drawing and specifications, for general reference by railroad staff).
  • 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. ISBN 978-0-9445-1304-0. LCCN 62020878. OCLC 602543182. pages 248–253