Word: mach
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Dates: during 1960-1969
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...France, which had been confident of winning air supremacy with their Concorde supersonic transport. Lockheed's All, and the American technological breakthroughs it implies, makes it almost certain that the U.S. will produce a supersonic plane that will be bigger, faster and cheaper to operate than the Mach 2.2 Concorde...
...Navy's F-4B (Phantom II), which flies at a top speed of 1,650 m.p.h., and at altitudes up to 98,000 ft. Aerodynamicists who have studied the configuration of the new, missile-like All, agree that its design may well make it capable of speeds of Mach 5 (more than 4,000 miles per hour) at altitudes of more than...
...months, U.S. planemakers, watching the development of the British-French, Mach 2 airliner called Concorde, have worried that the U.S. was falling behind in the field of supersonic flight. Now, with the development of the A11, the U.S., instead, has reached a critical take-off ahead of the rest of the world. In so doing, it may well have revolutionized manned aircraft...
...British and French state-owned airlines-BOAC and Air France-placed six orders apiece for the rival U.S. supersonic transport. Though the exact design of the American SST has not yet been determined, the plane will definitely be bigger and faster, and will have a longer range than the Mach 2.2 Concorde. The British-French move not only gave a heartening boost to the U.S. project but stirred new doubts about the future of the Concorde. The British government has already begun to grouse about its development costs, and BOAC and Air France have been worried that the Concorde...
...size. All three planemakers proposed SSTs measuring about 210 ft. in length (v. 153 ft. for the longest Boeing 707 and 180 ft. for the Anglo-French Concorde supersonic). The big planes are designed to carry 150 to 210 passengers, depending on seating arrangements, and attain a speed of Mach 3 (three times the speed of sound) v. a Mach 2.2 top speed for the Concorde. To withstand the heat generated by the higher speed, the U.S. supersonics will be built of titanium and stainless steel...