AFU now deploying night hunter drones with 3d printed "shhhhh" acoustically silent props.
https://twitter.com/ConnieLingus123/...70453094178936
https://twitter.com/l33veal/status/1784949061214499044
Quote:
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toroidal propellers, keeps the tips from breaking the sound barrier
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Still uses active infrared from the looks of that video (i.e. large LED IR illuminator), so shows up like a floodlight to anyone who has actual night vision gear; but for the average mobik, it's whispering death.