Abstract
The operational specifications of Air France and British Airways were amended to allow limited scheduled commercial flights of the Concorde supersonic transport into the United States for a trial period not to exceed 16 months. An interagency steering group comprised of representatives from the Secretary, National Aeronautics and Space Administration (NASA), Environmental Protection Agency, and FAA developed plans for noise, sonic boom, community response, and low-altitude pollution monitoring. Measurements have been taken since initiation of Concorde operations into Dulles Airport on 24 May 1976. Two community opinion surveys around Dulles Airport have been completed and the first JFK opinion survey was started on 1 February 1977. Results of the first two Dulles area surveys indicate that fewer people now disapprove of the Concorde than at the time of initiation of operations. Later surveys will provide results which may be compared to the first survey to detect changes in attitudes. A content analysis of print and broadcast media is being conducted to determine their treatment of the Concorde issue. Structural vibration studies conducted by NASA at Sully Plantation and in typical residences showed that Concorde caused more vibrations in the structures than other aircraft but not as much as nonaircraft events such as doors closing.
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