Word: controls
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Dates: during 1980-1989
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Last week it was learned that U.S. and Soviet negotiators in Geneva took a major step toward verification arrangements several weeks ago, when they agreed on inspection controls for the elimination of chemical weapons. American officials welcomed the accord as further evidence that after decades of failure, enormous progress is being made across the board on the thorny verification issues so central to all arms control...
...Soviet missiles. More than two dozen Americans stationed permanently in Votkinsk, west of the Urals, keep tabs on a plant that once built SS-20 missiles, and a similar number of Soviets in Magna, Utah, monitor what was formerly a Pershing engine plant. Michael Krepon, a Washington arms-control expert, talks of "a degree of verification unthinkable just a couple of years...
...cockpit, however, Haynes was describing a far more dangerous situation to regional air-traffic controllers at the Minneapolis-St. Paul airport. One minute after the explosion, he radioed that his craft had developed "complete hydraulic failure." That meant the crew could no longer control the rudder, elevators, wing flaps and ailerons that steer the jet. Too massive to be manually manipulated, these control surfaces are normally powered by fluid pumped by pressure from the jet engines through a series of stainless-steel tubes that snake throughout the aircraft. Since each of the plane's three redundant hydraulic systems is powered...
Responding to Haynes' distress call, air controllers directed the plane to continue eastward for an emergency landing at Dubuque, Iowa, 240 miles away. The pilot sensed a momentary regaining of some control. But then he lost it again. At 3:20 he declared that he faced an "emergency" and had to find the nearest landing spot. Controllers suggested he turn back to the west to reach Sioux City, a Missouri River town where one of the airport's runways is 9,000 ft. long. That could easily handle a DC-10. But Sioux City was 70 miles away...
...remained relaxed. Some travelers noticed the wide turn to the southwest and heard the thrust in the two wing engines change, alternately increasing and decreasing. Haynes was apparently relying on a technique that pilots call "porpoising," adjusting the thrust of his two remaining engines in a desperate effort to control the plane. Passenger Kathleen Batson joked that the engine problem would get them priority-landing rights in Chicago. "We won't be circling O'Hare," she quipped...