BAE Systems' Survivability and Protection Systems unit is developing an acoustic hostile-fire indicator (HFI) to protect low-flying helicopters from small-arms fire.
HFI Program Manager Bill Ashe told Jane's that, while most aircraft already have some form of missile warning and countermeasures capability, they are still highly vulnerable to small-arms fire.
Not so safe Low-flying helicopters remain highly vulnerable to small-arms fire.
