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You could make reasonably-sized miniature zeppelin drones, which can be made quiet and stealthy, but I'm not sure how maneuverable they'd be in a stiff breeze.
by pjscott 16y ago
You could make reasonably-sized miniature zeppelin drones, which can be made quiet and stealthy, but I'm not sure how maneuverable they'd be in a stiff breeze.
- deleted 16y ago[deleted]