The Alco S-6 (specification DL 430) was a diesel–electric switcher locomotive constructed by ALCO of Schenectady, New York; a total of 126 locomotives were built between May 1955 …

The Alco S6 (designed by the company as its DL430) was quite similar to all of its previous siblings, and as aforementioned was the successor to Alco's S5 design. The S5 was the first …

The Alco S-6 (specification DL 430) was a diesel-electric switcher locomotive constructed by ALCO of Schenectady, New York; a total of 126 locomotives were built between May 1955 …

The Alco S6 was a diesel-electric switching locomotive, an updated version of the earlier S-5 model. A total of 126 were built at Alco's Schenectady, New York plant between 1955 and …

Alco Reference #1 by Bob Liljestrand Brotherhood of Locomotive Firemen and Enginemen Magazine, October 1953

Alco Reference #1 by Bob Liljestrand Brotherhood of Locomotive Firemen and Enginemen Magazine, October 1953 Additions/corrections from: Howard Wise and Karl L. Swartz

It is indeed an Alco S6, ex Southern Pacific judging by the light package. This was one of Alco's last switcher models and only the SP really went for it. They bought 70 of the 126 examples …

Alco S5, S6, SSB9 - Original Owners. by Robert Sarberenyi. S5: 8 US; S6: 93 US, 33 Mexico; SSB9: 2 US

Between 1955 and 1956 Espee receieved 70 Alco S-6 switchers. Two distinct varieties were delivered, #1033-1090 (later #1200-1257) were used as switcher, transfer and branchline units …

The VE had numerous interesting locomotives over the years; this post will deal with the Alco S6 switcher. Alco built 126 S6's between 05-1955 and 12-1960. SP owned 70 of these 900 hp …