Boeing C-137 Stratoliner procurement of the Boeing 707 was very limited, amounting to three Model 707-153s designated VC-137A. When delivered in 1959 these had four 13,500 lb (6123 kg) dry thrust Pratt & Whitney J57 (JT3C6) turbojets; when subsequently re-engined with 18,000 lbf (80.1 kN) dry thrust TF33-P-5 (JT3D) turbofans they were redesignated VC-137B. Only one other variant served with the USAF: this was the VC-137C "Air Force One" presidential transport, the two examples of which were Model 707-320B Intercontinentals with specialized interior furnishings and advanced communications equipment. Two further non-presidential C-137C aircraft were later added. To supplement its VC-137s, the USAF converted
Barack Obama Presidential Center Barack Obama Presidential Center The Barack Obama Presidential Center is the planned presidential center of Barack Obama, the 44th President of the United States. It will be located in Jackson Park on the South Side of Chicago, near the University of Chicago campus. The university provides planning, support, engagement and programming. Included within the center's plans is a new branch for the Chicago Public Library. The nonprofit Obama Foundation will oversee the center's creation and its campus' construction, and partner with the National Archives and Records Administration (NARA) to digitize the presidency records. In August 2018, the Chicago Park District