Word: mach
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Dates: during 1950-1959
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...sure. But it frightened Pilot Smith as he had never been frightened. Terrified, he crouched forward (the wrong position for ejection). He does not even remember pressing the trigger that shot him out of the aircraft. The last thing he recalls is a glimpse of the machmeter, which read Mach 1.05. This is 777 m.p.h. at his altitude...
...example, the four-minute mile. For years, we thought that was a physical limit just a bit beyond human reach. Well, it was a psychological limit, and once there was a breakthrough the barrier seemed never to have existed. So it was with the sound barrier-with man enduring Mach 1*- a falsely set limit...
...presented his proof with argument-killing logic: his own roaring rides. Having established the practical limits of human tolerance to g forces,† he is getting ready to prove his carefully calculated theory that a jet pilot can stand the wind blast of a bail-out at Mach 3 at 40,000 ft. (about 2,000 m.p.h.), provided he is properly helmeted and harnessed tightly to an ejection seat...
...Mach 1 is the speed of sound: 760 m.p.h. at sea level, 660 m.p.h. at 35,332 ft. (beginning of the stratosphere) and above. †50 gs for ¼ of a second, building up at a rate of 500 gs per second; 40 gs for 1/5 of a second, building up at 1,500 gs per second; 25 gs for one second; building up at 600 gs per second. * One of them: "Siberian Tiger Steak." Recipe: "Take a one-vertebra thickness of Tbone, rub with sodium glutamate, powdered ginger, powdered mustard, garlic, thyme and cumin seed before broiling...
...tiny (400 workers) Leduc Co. has built an even more radical fighter with a needlelike plastic cockpit and a 143,000-lb.-thrust (at 621 m.p.h.) ramjet engine. Carried aloft on the back of a mother ship and released at a high speed, the Leduc ramjet has already passed Mach 1 in a climb, is expected to hit Mach 2 (1,520 m.p.h. at sea level...