New post in Andoniscars.com: Boeing 2707 A project of an American supersonic passenger airliner, phased out in 1971.The development was conducted by Boeing as part of the program to create a domestic supersonic passenger airliner (National Supersonic Transport), announced by President John F. Kennedy on June 5, 1963. The aircraft was expected to have a cruise speed of 2,900 km/h with a range of up to 6,740 km and a passenger capacity of up to 277 people. On December 31, 1966, Boeing's project was selected by a state commission. During the development of the project was performed a large amount of scientific and technical work. But with the further development of the program there were difficulties, and not only technological. Thus, considerable public attention was drawn to the problem of sonic booms that are characteristic of supersonic airplanes. During the testing of the military XB-70 aircraft near Oklahoma City in 1965, because of the sonic boom along a flight path about 26