Retired Chief Master Sgt. Bobby McCasland, bottom right, a former crew chief, talks with crewmembers of the C-135 Stratolifter, tail number 55-3126, that was used to transport dignitaries under the command of then-Vice Chief of Staff of the Air Force Gen. Curtis E. LeMay from 1957-1965. McCasland, who was part of the crew that delivered the Air Force’s first KC-135 Stratotanker in June 1957, attended the KC-135’s 60th anniversary at McConnell Air Force Base, Aug. 31, 2016. (Courtesy photo)