News for hackers. Stuff that matters.

A comment on Swiss Post Suspends Drone Delivery Service After Second Crash. Parent comment

Re:Swiss Post Suspends Drone Delivery Service After Second C... by Shivetya on Tuesday August 06, 2019 @08:10AM (#20624389)
My only question is, why are there no blade guards in place? Not to protect the blades but to protect anyone near this drone?
[ Parent | on HN ]
Re:Swiss Post Suspends Drone Delivery Service After Second C... by joncrane on Tuesday August 06, 2019 @08:58AM (#20624701)
I imagine that it reduces efficiency for the fastest part of the blades to pass very close to a stationary ring, as opposed to letting the turbulence tumble off the ends of the blades unimpeded.
[ Parent | on HN ]