Word: radar
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...week effort by 40 search vessels, the Swedish navy never flushed out what it believed were two or more foreign submarines lurking in the waters off Musk Island. Nor could it produce a satisfactory explanation of how the mysterious intruders had penetrated the defenses of the naval base, whose radar keeps a continual watch on Sweden's Baltic Sea coastline facing the Soviet Union...
...Nimitz and missile-carrying nuclear submarines comparable to the Tridents. The Blackjack bomber is intended to fill the role proposed for America's B-1B. Two new fighter jets being developed by the Soviets, the MiG-29 Fulcrum and Su-27 Flanker, are to contain high-tech radar and weapons-guidance avionics like those...
...calculated at only 390 miles, about half the range of the A7. Either the Hornet would have to be refueled in flight or its carrier would have to sail closer to hostile shores than might be desirable. Test pilots have described the F/A-18's elaborate air-to-ground radar as "grossly inaccurate." Deputy Secretary of Defense Paul Thayer flew one himself to check out reports of serious problems; when he landed, the nose wheel failed to come down and he had to adopt emergency procedures. Some experts now believe that the very concept of such a multipurpose plane...
...visual range, roughly eleven miles. A heat-seeking missile, it speeds toward its target at twice the speed of sound, and homes in on the tailpipe. Its current version costs $59,000. The Sparrow is bigger (500 Ibs. to 190 lbs.), nearly twice as fast, and is guided by radar so that it can be fired at targets as far as 31 miles away. It costs...
...reason: most aerial duels are fought at less than the Sparrow's minimum effective range (which is secret). In a close-range dogfight, the Sparrow's great speed often causes it to zip right past an enemy plane taking evasive action before the missile's radar can zero in on the target...