The Development of an Audible Warning System for Parachute Landing at Night
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Currently no system exists to assist military parachutists navigating to the drop zone and landing at night. Night jumping creates extra danger because many times the jumper will not be able to see the ground. The purpose of this research is to develop and test audible warnings as well as delivery systems to alert parachutists of critical altitudes in their descent. This will decrease injuries obtained from ground impact. A novel audible display was developed and preliminary testing has been accomplished to assess the human response to the warnings, the intuitiveness of the warnings, and the method of displaying this warning to the user (bone conduction and earphone microphones). Preliminary results show that a combination of tonal and verbal audio displays is most effective to communicate critical altitudes to parachutists and that bone conduction microphones are promising as an effective technology to display the warnings to the parachutists.