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vectorsite.net
No matter how the Harpoon is launched, it is directed to a preprogrammed target area by an INS, where it conducts an autonomous search for a naval target. A number of different search patterns can be programmed into the missile, which not only increase the probability of detecting the target but make it harder to trace the missile's flight path back to its launcher. In any case, the Harpoon sweeps through the pattern while hunting for a target using a radar seeker. When the Harpoon finds a target, it drops down to wave height and homes in on it. The missile can strike the target broadside or perform a popup attack. While the guidance system is sophisticated, it is also indiscriminate, and the Harpoon cannot be launched into a target area where friendly forces are operating.
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