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
Boeing VC-25 its 747 and McDonnell Douglas with the DC-10 were in competition to be selected, with the Boeing entry the eventual winner. The fabrication of the current 747s began during the presidency of Ronald Reagan (1981–1989). Reagan ordered two identical Boeing 747-200Bs to replace the Boeing 707s that he used for transport. The VC-25s were completed in 1986 and first flew in 1987. The interior designs were created by First Lady Nancy Reagan, who used designs reminiscent of the American Southwest. Problems with interior wiring for communication systems delayed delivery of the two aircraft until 1990, during the administration of George