Word: fueled
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Dates: during 1970-1979
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Much of the public continues to behave as if there were a constitutional mandate to expend energy; the nation will burn nearly 4% more oil this year than in 1977. But this trend is being countered in a notable way by some corporate consumers, who are discovering that saving fuel is just about the simplest way to cut costs and boost profits...
...will get going in 1981 and 1982, when three manufacturers plan to deliver planes of roughly the same capacity (197 to 230 passengers) and range (2,300 to 3,680 miles). They are the Boeing 767, the Airbus A310-200 and the Lockheed L1011-400. To save weight and fuel, the Boeing and the Airbus will have two engines, the Lockheed "Dash 400" three...
...onboard computers will compile and analyze the details of the plane's performance and present the crew with up-to-the-minisecond accounts of engine efficiency, fuel consumption, progress of flight and miles to destination. Flight crew members will become monitors of the automated systems, and the new instrument panels are designed to help them keep constant watch on performance. They no longer will have to rely on a clutter of spinning indicators or round dials. Information will be displayed, simply and concisely, on digital readouts, vertical scales and bright, television-style screens. A much improved radar will display...
...supersonic is being developed at present. The Anglo-French Concorde, of which ten are now flying, is such a fuel-gulping money loser that no more are on order and five have been left unsold. NASA and U.S. planemakers are still conducting supersonic research on a modest scale, but an American SST is not expected before the 1990s, and then only if the world economy is buoyant...
...developing a "prop fan"-an eight-blade propeller driven by a jet engine. The blades look like warped boomerangs. They are more efficient for subsonic aircraft than the fanjet engines planned for the 1980s; on flights of up to 1,500 miles, the prop fan would be 40% more fuel economical, since a propeller is more efficient than jet thrust during climb-outs and letdowns. Even so, the boomerang has a problem: excessive noise. Furthermore, how can airlines lure passengers back to a prop after they have flown...