It seems every day now that science fact is catching up with science fiction- and here's the latest from the USAF and Army: engineers are testing aluminium oxynitride (ALONtm) as a replacement for the usual layered glass transparanice used currently in air and ground vehicles. It not only offers increased performance over glass but is also lighter.
"ALONtm is virtually scratch resistant, offers substantial impact resistance, and provides better durability and protection against armor piercing threats, at roughly half the weight and half the thickness of traditional glass transparent armor."
In tests the ALONtm stood up to hits from .50 BMG armour piercing rounds.
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