1961 Mar 1 (1st): Milan, Tennessee[1] 1961 (11th RBS): Rhame, North Dakota[2] tbd: Bowman, North Dakota[3] 1961: McAlester, Oklahoma[4] 1961 December (#2): Hawthorne, Nevada[5] 1962 January: Greenville, Texas[6] 1962 April: Athens, Georgia [7] 1962 May: Jalapa, South Carolina[8][9] 1962 June: Barksdale AFB, Louisiana [10] 1963 Jan: Worthington, Minnesota [11] 1963 Mar-May: Deeth, Nevada[12] 1963 (# "III"): Jalapa, South Carolina[13][14] 1963 May-Jun (1st): depot[15] 1963 June (1st): Minnesota [16] tbd: Corsicana, Texas[17] 1964 Jan: Emhouse, Texas [18] 1964 Jan-Mar: Thoreau, New Mexico[2] tbd: Crane, Indiana[3] 1964 Sep: Moulton, Iowa [19] 1965: Scott City, Kansas[2] 1965 Apr-Sep: Newport, Arkansas (3rd time)[20][21] 1966 Oct: Wendell, Idaho [22] 1966-67:[23] Rion, South Carolina[24] 1968 February (w/ MSQ-39): Wellsville, Missouri[24] 1968 May: Naicom, Saskatchewan[25][26] 1968-9: Ritzville, Washington[27] 1969: Lawen, Oregon[24] 1970 May: Saskatoon, Canada[28][29] 1970-1: "Green River Site", Utah[30] RBS Express railroad trains were 3 mobile United States Air Force radar stations for 1CEVG Radar Bomb Scoring (RBS) of Strategic Air Command bomber crews beginning in March 1961.

[31][32] Electronic equipment included the "MSQ-39, TLQ-11, MPS-9, and the IFF/SIF for the MSQ-39"[33] along with support railcars ("work train"), and the trains were temporarily used at various rail sites (e.g., sidings) with the radar antennas emplaced using hoists built onto flatcars.

[34] Pulled by a "contracted locomotive" that left the train at the site[35] (e.g., for 45 days),[1] and a North American B-25 Mitchell was used for calibration of the radar station.

"[35] Depot maintenance for the trains was at the Tooele Army Depot[37] southwest of Salt Lake City ("Army Rail Shops").

Butler's command had 60 11th RBS airmen: 15 from the Joplin Bomb Plot and others from the bomb plots at La Junta CO, Bismarck ND, Minneapolis MN, Salt Lake City UT, St Louis MO, and Little Rock AR.