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Military helicopters have sophisticated electronic countermeasures to detect and defend against surface-to-air missiles, by jamming or fooling the seekers that guide the missiles to target. Now the Pentagon’s far-out research arm wants to take things a step further, by protecting against unguided — but equally dangerous — small arms fire.
In testimony yesterday, Regina Dugan, the new head of the Defense Advanced Research Projects Agency, described a new acoustic sensor the agency was developing to alert aircrews to ground fire.
The system — called HALTT, for Helicopter Alert and Threat Termination — is a hostile-fire indicator that would give the pilot a warning of attack, and pinpoint its origin. It would work by detecting the distinct acoustic signature (or “crack”) of a bullet as it passes through the air. It would then indicate the shooter’s position. HALTT, Dugan said, “would make it very dangerous to shoot at U.S. forces — because the first shot may very well be the adversary’s last.”
Dugan also gave an interesting statistic: Incoming small arms fire, she said, accounted for 85 percent of hostile engagements against helos. A prototype of the system has been installed on an Army UH-60 Blackhawk helicopter, and Dugan said the military was planning to deploy several systems to Afghanistan for real-world evaluation.
Originally posted by havok
I can guarantee this can be used domestically, also.