| 摘要 |
Commercial aircraft need means of thwarting hijackers. Hijackers may kill or disable the pilot and fly the aircraft directly into a target building. A method of preventing such hijacking is to provide a non-lethal gas to incapacitate the hijackers such that they can be overpowered. This non-lethal gas should be placed to access the air duct of the ventilation system and placed in an area such as the cargo space that is not accessible to the passengers This system can be adapted to home use and for watercraft.
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