Word: aircrafting
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With the aid of colleagues from across the United States, the Harvard group recently published a research article in Science reporting their work on the impact of supersonic aircraft emissions on the ozone layer...
Commuter airlines operating small aircraft should not be allowed to continue under regulations less stringent than those governing larger planes, the National Transportation Safety Board said today. The board's recommendations come after a nine-month study and a day after the International Airline Passenger Association urged its members to avoid commuter aircraft with fewer than 31 seats -- planes the IAPA said have a "significantly higher" accident rate than larger craft. The smaller commuter planes do not have to meet some standards that apply to larger aircraft; the NTSB recommends that the Federal Aviation Administration tighten commuter pilots' training standards...
...HUGHES AIRCRAFT...
While still unproved, the hypothesis is stirring a debate about an aeronautical phenomenon called wake vortex. That dry bit of technical jargon refers to the rotating, high-energy tornadoes that spiral behind and downward from the wing tips of an aircraft. Such turbulence behaves much like the wake of a ship: the heavier the vessel's displacement weight, the more violent and long lasting the disturbance. In air, as on water, if a craft trails this whirling vortex too closely, it can be buffeted brutally. For more than a decade the National Transportation Safety Board, which investigates accidents, has exhorted...
...sufficiently to contribute to the latter's plunge, it would be a first. While 727s were the lead craft in seven of the 52 wake-vortex encounters documented by the NTSB from 1983 through 1993, all of those incidents -- some merely unsettling, some disastrous -- involved much lighter trailing aircraft...