Word: mach
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...there will be many other cautious flights before the B70 starts its lifework: exploring the swarming problems of a Mach 3 airliner. And if such a passenger plane ever goes into service, much of the credit will go to the technological innovations that were first tested by Cecil the Seasick Sea Serpent...
Splendid Parade. Far from a slight extension of Einstein's work, Hoyle's apple stealing is more ambitious larceny. His new theory stems from the Mach Principle, that the mass* of every object in the universe is affected by its interaction with every other object. Einstein tried to incorporate the Mach principle in his own scheme of the universe and admittedly failed. Hoyle claims to have succeeded...
...Mass is that property of a body which resists change of motion. On the surface of the earth, it is closely equivalent to weight. Austrian Physicist Ernst Mach (1838-1916), who gave his name to the principle, is better known today for Mach numbers, a method of measuring speed in multiples of the speed of sound...
...tends to get nose-heavy at high speeds when the wing's center of lift shifts toward the stern. To counteract this tendency, two small wings called canards are set like large trim tabs, just aft of the cabin. But even the canards are not enough; as Mach 3 approaches, the tips of the delta wing will be folded downward. This will shift the center of lift forward and add directional stability. It also adds a hazardous complication to the plane's construction...
...made by B.F. Goodrich out of material that stands twice the temperature that melts ordinary airplane tires. To dispel the heat that will fight its way toward the crew, North American's engineers decided to make the fuel carry it away. While the XB-70A is cruising at Mach 3, its fuel will circulate, cooling the interior, absorbing enough heat every minute to evaporate four gallons of water. Inside, if nothing goes wrong, an air-conditioning unit will be able to keep the cabin comfortable...