Circumferential ring propulsors and control for manned/unmanned LTA (aircraft) (patents.google.com) 2 points by CommitSyn 3y ago ↗ HN
[–] CommitSyn 3y ago ↗ 2020 patent for a cylindrical lighter than air craft able to hover and maneuver.The last image shows that the end object is meant to be cylindrical, the oval-shaped device is the interior.
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[ 3.1 ms ] story [ 15.5 ms ] threadThe last image shows that the end object is meant to be cylindrical, the oval-shaped device is the interior.