Word: mache
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...space plane's top speed will be about Mach 5 (3,500 m.p.h.), and the whole flight will take, at most, 20 minutes, covering a horizontal distance of some 500 miles. The pilot will have to be provided with air, presumably by pressurizing his cabin, but this will not be much of a problem for so short a time. Solar heating and cosmic rays will be no problem either...
...planes. Pilots call it "a saddle strapped on an engine with a 20-mm. cannon." Pencil-slim, with straight, stubby eight-foot wings, it combines relatively light weight (17,000 lbs.) with a big General Electric J-79 engine. The F-104 will do an estimated Mach 2 (1,320 m.p.h. at 30,000 ft.) in level flight...
...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...
...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...