The ALCO Century 855 was a model of 5,500 hp (4,101 kW) diesel-electric locomotive built in 1964 by the American Locomotive Company for the Union Pacific.

The Alco C855 was Union Pacific's montrous experimental Century model developed in 1964 and able to produce 5,500 horsepower.

The C855 was launched in 1964 in response to a request from Union Pacific for a dual engine unit to replace up to ten first-generation locomotives. It was powered by two Model 251C 16-cylinder engines, producing 5,500 horsepower.

Mar 1, 2023 · The Alco C855 locomotives is a locomotive that Union Pacific should have never considered purchasing. The railroad’s operating department had always favored big motive power to move its mainline trains; just look at its 4-12-2 Union Pacifics, 4-6-6-4 Challengers, and 4-8-8-4 Big Boys in steam days.

Jan 24, 2024 · Alco’s answer to EMD’s various model DDs and GE’s U50 series locomotives was the C855. In 1964 Union Pacific bought three. Officially, the builder cataloged these eight-axle units riding on four two-axle trucks as DL855A for the cab units, and DL855B for …

ALCO C855. Production Roster. xxxxxxx photo; Info Supplied by: John Komanesky: New: 29 September 2005: Original owner Road Numbers Bldr Numbers Bldr Dates; Union Pacific: 60: 84730: 6/1964: ... Alco: A Centennial Remembrance, by Richard T. Steinbrenner Giants of the West, by George R. Cockle

During the steam era the company constructed some of the best and well-known locomotives to ever roam the rails, many of which still survive today. These included designs such as the 4-6-4 Hudson, 4-8-4 Niagara, 4-6-6-4 Challenger and the legendary 4-8-8-4 Big Boy (one of which, #4014 is now slated for restoration by Union Pacific).

The ALCO Century 855 was a model of 5,500 hp (4,101 kW) diesel-electric locomotive built in 1964 by the American Locomotive Company for the Union Pacific.

The ALCO Century 855 (sometimes called the ALCO C855) was a diesel-electric locomotive built in 1964 by the American Locomotive Company for the Union Pacific Railroad. The C855 was notable for being ALCO's most powerful diesel-electric locomotive and, at the time, the most powerful diesel...

Union Pacific Railroad C855 61 at Council Bluffs, Iowa on March 20, 1965, Kodachrome by Lou Schmitz, Chuck Zeiler collection. This locomotive was completed in June 1964 (c/n 84731) and retired August 1970.