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: Der schwarze Kennedy Barack Obama: Der schwarze Kennedy Barack Obama – Der schwarze Kennedy () is a best-selling German-language biography of President of the United States Barack Obama by journalist Christoph von Marschall. The book was written by Marschall while he spent much of 2007 travelling with Obama's presidential campaign as a reporter for the Berlin newspaper "Der Tagesspiegel". It covers Obama’s life from his childhood, through his college years, his time as a community organizer in Chicago, Illinois, and his political career including his 2008 presidential campaign. Marschall sums up his impressions of Obama by saying, “Seine Lebensgeschichte steht für den amerikanischen