Word: on-board
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...concept of the Global Positioning System is simple. With the help of an on-board atomic clock, each satellite in the network continuously broadcasts a signal indicating the time and the spacecraft's exact position. (A total of 16 satellites are now aloft; there will be 24, including three spares, when the system is completed in 1993.) A GPS receiver uses simultaneous readings from three different satellites to "fix" the user's longitude and latitude...
...ships hooked together in a cartwheel-like arrangement that makes three revolutions per minute, or two vehicles attached by a half-mile-long tether rotating through space as the entire system speeds toward Mars. Still another idea is to schedule a daily workout for each crew member inside an on-board centrifuge, where resisting the centrifugal force would simulate working in gravity...
Deregulation has prompted airlines to make daring experiments with service, sometimes to harrowing ends. People Express provided an example of just how far consumers can be pushed in a trade-off for low fares. Its aggressively no-frills service, featuring such hassles as on-board ticketing and extra fees for checked baggage, gave the airline a negative image among business flyers and probably hastened its demise. Its rival, Texas Air, which officially bought People Express last month, prevailed partly by making a point of offering low fares without reducing service below generally accepted levels. The airline-merger boom...
Today the pampered pigs travel first-class in their own custom trailer, equipped with fans over each pen and a system that changes the air inside every two minutes. Their 100-gal. on-board water supply is laced with sulfa powder and penicillin to ward off scours, the dread hog diarrhea. Each year the company holds a contest among employees to name the racers. Samples from this year's roster: Hamtastic, Leaping Loin, Chop Sooee, Boared Stiff, Charlie Choplin...
...performance of U.S. equipment was flawed. In an effort to prevent any bombing that might be deemed indiscriminate, U.S. airmen were under orders to abort their missions if on-board equipment showed the slightest glitch. Five of the 18 F-111 craft developed such malfunctions, probably in their radar targeting equipment, as did two of the carrier-based A-6 craft. Pentagon officials rightly maintain that the rules of engagement in wartime would not be as stringent as those for the Libyan mission, but the high rate of even minor malfunctions is hardly encouraging...