Southern Pacific class AC-9 - Wikipedia
The AC-9 was one of two Southern Pacific Railroad's articulated steam locomotive classes that ran smokebox forward after 1920. Twelve AC-9 class locomotives were built by Lima in 1939 and were Southern Pacific's largest and heaviest steam engines, partly a consequence of low quality coal these engines were designed to burn.
Southern Pacific Class AC-9 | Locomotive Wiki | Fandom
The AC-9 locomotive was one of two classes of articulated locomotives that the SP ran and operated smokebox forward. Twelve engines were built by Lima in 1939. This class of engine was one of the heaviest and largest classes operated by the SP. Their wheel arrangement of 2-8-8-4 meant they were "Yellowstones" but they were rarely called that.
Southern Pacific 'Articulated' Class AC-9 Steam Locomotive
© Gene Deimling - A most unique locomotive in the SP scheme on things. The AC-9 was built 'backwards' to the cab forwards. This shot was taken in Sparks in the early 1950s. Photo from the collection of Gene Deimling
Southern Pacific 2-8-8-4 "Yellowstone" Locomotives in the USA
In 1939 the SP received 12 Yellowstones from Lima for use throughout the southern part of the SP system. Unlike the Cab Forwards, the class AC-9 locomotives were built as coal burners. They were later converted to burn oil. Also, the AC-9 class had a grate area of 146 sq. ft. rather than the 139 sq. ft. of their cab forward siblings.
SP Class AC-9 | Trains and Railroads
The AC-9 was one of two Southern Pacific Railroad's articulated steam locomotive classes that ran smokebox forward after 1920. Twelve AC-9 class locomotives were built by Lima in 1939 and were Southern Pacific's largest and heaviest steam engines, partly a consequence of low quality coal these engines were designed to burn.
Southern Pacific's Streamlined Articulateds: The Iconic AC-9 …
2019年2月24日 · This book features a photographic anthology of Southern Pacific’s iconic AC-9 class articulated steam locomotives. Unlike SP’s famous cab forwards, the AC-9 class was designed for operation as coal burning engines on the Rio Grande Division.
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Lionel Southern Pacific AC-9 - YouTube
A review of the new 3-Rail O-Scale Southern Pacific 2-8-8-4 AC-9 from Lionel. More videos on the Eric's Trains Youtube Channel and at www.ericstrains.com
loco-info.com - Southern Pacific class AC-9
While most of Southern Pacific's later articulated locomotives were Cab Forwards, the twelve AC-9s were of conventional design. Since there were no tunnels to pass through on the line from Tucumcari, New Mexico to El Paso, Texas, they were able to burn coal in the usual way.
SP AC-9 Yellowstone WIP | 2-8-8-4 Yellowstone Type Twelve 2
2010年7月5日 · Twelve 2-8-8-4 Yellowstone Type AC-9s were built for the Southern Pacific by the Lima Locomotive Works in 1939. The AC-9 class differed from their Cab Forward brethren in at least a couple of significant ways. The AC-9s were primarily run …
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Shuttling Big Steam Power - SP AC-9 #3809 - 1953! - Trainorders.com
In April 1953 Southern Pacific was starting to shuttle their fleet of 2-8-8-4 AC-9 articulated from the Southwest where they had begun their operations to the Modoc Line. In order to make such movement of power efficient, SP put the big engines on …