Word: chartes
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Scarcely noticed in the long-swirling debate about how to achieve prosperity without inflation is the fact that since recession-shadowed early 1958 the U.S. economy has sensationally achieved just that (see chart). Last week Administration officials reported that the U.S.'s gross national product added up to an alltime record rate of $464 billion a year in the first quarter of 1959-a hefty $37 billion above the first quarter...
Black Line Payoff. At lift-off Dr. Debus looked through the window, studying the quality of the roaring flame. His experienced eye told him that ignition had been perfect. He strolled to the instrumentation room, where a moving pen was tracing a black ink line on a flowing chart. If the black line, which represented the rocket's trajectory, stayed sufficiently close to a blue line representing the planned course, all would be well. He watched for a minute or so. Then his saber-scarred face smiled gently. "It looks good," he said. Pioneer...
...VOR/DMET station and see his compass bearing from that station appear in degrees on a dial. Then he sends a signal to the station, which replies by telling him his distance from it in nautical miles. By plotting the bearing and measuring off this distance on his chart, he can pinpoint his airplane's position and set his course accordingly...
...comparatively few airplanes or stations have the full distance-measuring equipment. But a navigator or pilot can get a fix by tuning in two stations and getting his bearing from each. His position is the point where the two bearing lines cross on the chart. VOR/DMET uses very high frequency radio waves, which are seldom bothered by static from thunderstorms. Disadvantage is that high frequency waves are line-of-sight (like those used for TV), and therefore stop at the horizon. Airplanes flying above 20,000 ft. can detect them 200 miles away. But for low-flying airplanes and helicopters...
...line can be drawn on a chart to show all such positions, other lines to show places at unequal distances (half as far, 0.8 as far, etc.). The receiver simultaneously measures the distance from the third slave station, and this information generates other theoretical lines on the chart. If the airplane is on two lines of different sets, it must be at their point of intersection...