sleeping car connection. January 12, 1958: The Super Chief and El Capitan are combined during the off-peak season on a 39-hour schedule. April 1958: The continuous Los Angeles-east coast sleeper carriages in cooperation with the New York Central and Baltimore and Ohio are terminated. 1958: The five Super Chief trainsets are refurbished and redecorated. On May 1, 1971, Amtrak took over operation of intercity passenger rail service in the United States. Amtrak retained the Super Chief/El Capitan names with Santa Fe's permission. From June 11 to September 10, 1972, Amtrak operated the Chief, a second Chicago–Los Angeles train along the same route. This was the only occasion on which Amtrak ran a second train to duplicate a long-distance service along its entire route outside the New York–Florida corridor. Amtrak dropped the El Capitan designation on April 19, 1973. On March 7, 1974, the Santa Fe directed Amtrak to stop using the Super Chief and Texas Chief names due to a perceived reduction in the quality of service. The trains were renamed Southwest Limited and Lone Star on May 19. On November 30, 1980, Amtrak replaced the ex-Super Chief "Pleasure Dome" and "Hi-Level" cars on the Southwest Limited with new Superliners. Equipment used The first motive power set on Super Chief-1 consisted of a pair of blunt-nosed, Diesel-electric units (EMC 1800 hp B-B) designated as Nos. 1 and 1A. Santa Fe employees hung the nicknames "One-Spot Twins" and "Amos 'n' Andy" (from the popular radio show of the day) on the units, which were always paired and ran back-to-back. In a little over a year the EMC E1, a new 3,600 hp (2.7 MW) streamlined Diesel-electric set (one 1800 hp hood unit and the other a cabless booster unit, also 1800 hp) would be pulling the Super Chief. A variety of locomotives (including ALCO PAs, EMD E6s, FTs, F3s, F7s, and FP45s, along with Santa Fe's only ALCO DL-107/108s and FM Erie-built units) would make their appearances over the years. All wore the Warbonnet paint scheme devised by Leland Knickerbocker of the GM "Art and Color Section" that debuted on the Super Chief-2. Original Consist The Super Chief-1's mostly-heavyweight original consist included: EMC "Boxcab" Diesel Locomotive #1 EMC "Boxcab" Diesel Locomotive #1A Baggage-Club-Lounge #1301 Chief Yellow Bear (also included a barber shop) Sleeper (lightweight)Forward (8 sections, 2 compartments, 2 double bedrooms) (see NOTE immediately below) Lounge General Hancock (10 sections) Fred