Definitions

ALCO RS-27

ALCO RS-27

The ALCO RS-27 (specification DL-640) is a diesel-electric locomotive built by ALCO between December 1959 and October 1962. Only 27 examples were manufactured. With ALCO's introduction of the Century Series line, the C-424 (specification DL-640A) replaced the RS-27 in the builder's catalog.

Original Owners

Railroad Quantity Road Numbers Notes
American Locomotive Company (demonstrator)
5
640-1 to 640-5 Four sold to Union Pacific 675–678,
one rebuilt as C424 for Pennsylvania Railroad
Chicago and North Western Railway
4
900–903 Three sold to Green Bay and Western 316–318, one to Peabody Coal
Green Bay and Western Railroad
1
310
Pennsylvania Railroad
15
2400–2414 to Penn Central and Conrail (same numbers)
Soo Line Railroad
2
415–416
TOTAL 27

References

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