Word: barriers
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Dates: during 1950-1959
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...Heat Barrier. Beyond the problems of design and control lies an even more serious obstacle. Some experts believe that heat will defeat all attempts of men to fly for long at twice the speed of sound. Rocket planes like the Skyrocket do not encounter the "heat barrier"; they do not fly long enough to heat up seriously. But the X3, expected to fly at high speed for a considerable period, is another matter. Its designers had to build into it resistance to the floods of heat caused by its own motion...
...Olympic time (19:18.5) for 1,500 meters-roughly as good as running a mile twelve seconds faster than anybody had ever done it before. Furuhashi's "incredible" performances, later matched by Marshall and Konno, set up for McLane what he now thinks was a psychological barrier. "My main difficulty was that I had already gone as far as I could go. I started at the top." But he started all over again, in four years managed to cut half a minute off his time for the 1,500 meters...
...larger of the two Germanys occupies the north and east, lies astride the Iron Curtain barrier. It is Protestant and Prussian, a culture half bourgeois and half aristocratic, a nation that looks East as well as West. This is the nationalist Germany hewn out by Martin Luther in the 16th century when he made his people's declaration of independence, political as well as spiritual, from the tottering visible unity of Rome. This is the Germany which has now been ripped in two by the war of Communism and the democracies. This is the Germany of Otto Dibelius. Once...
...catch up, Baker pushed on his throttle, forced his Sabre jet through the sound barrier. From a distance of 800.ft., he fired a long burst of his guns. The MIG started coming apart. The cockpit canopy flew off to the left, and the pilot narrowly missed Baker's plane as his ejection seat dumped him to the right. The MIG, trailing flame, crashed ten miles south of the Yalu...
...Navy, the nation's aircraft factories are turning out sleek, powerful experimental aircraft, unburdened by armor or guns, that are punching their way into the stratosphere at more than double the speed of sound. A few of them can fly fast enough to nudge the implacable thermal barrier (a speed limit of about 2,500 m.p.h.-TIME, May 26). Between them, the Air Force and the Navy have been experimenting with at least seven such research planes...