ALCO RS-27
The ALCO RS-27 was 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 in 1963, the C-424 replaced the RS-27 in the builder's catalog. Today, the Minnesota Commercial Railway has the only two RS-27s left in existence; however both have been placed into storage.