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The Zipline Sparrow isn't a quadcopter, but a fixed-wing aircraft: https://amablog.modelaircraft.org/amamuseum/2023/08/11/ziplines-sparrow-on-display/ https://a

• yurishimo 3y ago
  But it can stop and hover in place right? In that regard, it's still a sitting duck for people who want to cause problems. Though granted, the likelihood that someone from a neighborhood who wants to do something like that using the service seems unlikely...
  • eliaspro 3y ago
    No, it can't stop in place. It drops its payload on a parachute quite accurately.
    • singularity2001 3y ago
      in the video, the new concept drone does indeed stop above the delivery point
      • marcosdumay 3y ago
        The concept drone is a VTOL capable fixed wing aircraft. The one that got licensed is the catapult-launched fixed wing one.