Word: onboard
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Dates: during 1980-1989
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...replaced its four engines with more powerful jets. The plane's crucial external modification is the revolving radar disc, the 6-ft.-thick aluminum and fiberglass rotodome attached to the fuselage by two 11-ft. pylons. The radar was designed to work in tandem with an onboard high-speed computer, and its data is displayed on nine or more separate consoles inside the plane. It is this computer phalanx, with a program that can be amended in flight, that makes the AWACS a surpassingly powerful military tool...