Word: sonics
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Dates: during 1970-1979
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...killing the Nixon Administration's plans to build a supersonic jet transport last year. Congress was influenced by some persuasive arguments against the plane: it would be extremely costly (an estimated $1.5 billion for development of two prototypes), create window-shattering sonic booms all across the countryside, and possibly even leave enough carbon dioxide in the upper layers of the atmosphere to change the earth's climate. Now Robert T. Jones of NASA'S Ames Research Center, near San Francisco, has suggested a radical new SST design that he claims would overcome most of these objections...
...would also prevent pollution of the stratosphere by burning less fuel and by flying at lower jet altitudes (40,000 ft. v. 65.000 ft. for the originally proposed U.S. SST). Finally, unlike other SSTs. it could fly economically at Mach 1.2. At that speed, it would create no sonic boom (under normal atmospheric conditions) and could fly over populated land without causing discomfort and damage below...
...took form on the stage of the Kennedy Center's Concert Hall: a panoramic view of the U.S.'s musical past. The performers were the Paul Hill Chorale, a lively fixture on the capital scene. Called The Music Has Always Been There, their program was both a sonic trip into bygone times and an entrancing prelude to a projected series of concerts stretching into...
Restricted Routes. Cost is not the only difficulty. Because it creates a sonic boom when it exceeds the speed of sound, the Concorde will be barred from flying over most populated areas at its optimum speed of Mach 2.05. That limitation will reduce the number of routes on which it can be used; for example, it will not be able to fly super-sonically between New York and Los Angeles or between London and Rome. Even at subsonic speeds, Concorde is hardly an environmental advance: on takeoff it will be as loud as a Boeing 747 and perhaps louder...
...airport has room to grow. More jets can do their job of helping people travel"). As part of a role-playing exercise, students are told to imagine that they are head of the Federal Aviation Administration confronting a group of cit-izeras concerned about the SST's sonic boom: "You must convince them that the program is important and should continue by presenting the facts about sonic booms and their effects...