What can the propeller of an innocent drone cause? It should not be surprising that a quick rotation of a blade can cause serious bodily injury (even if the blade is made of a flexible material such as plastic or carbon).
Researchers at the Drône Research Laboratory of Aalborg University have tried to find out the damage that can be caused by twins of different drone to a large piece of pork (which has similar consistency to human skin and muscles).
Let us mention that the laboratory has tested the drone's propellers under very specific controlled conditions. In other words, if you try it with the drone you have in your home you will cut your hands.
How do propellers fall on pork when traveling with about 20 mph?
The carbon propel pinches in the pork with the least possible speed (carbon fiber is known for its strength), while the plastic propeller has little difficulty in impacting:
Considering the video shot with a high-speed camera at 3200 fps, it may seem to you that the drone is not moving very fast. So the lab also posted a video at normal speed:
Of course this is not the first time someone has tested drónes for possible injuries.
The Mythbusters they tried several new ones models drones last year and concluded that small and medium-sized drone models are generally safe.
But larger drones can occasionally cause real damage:
Naturally, laboratory conditions can not be fully proportional to real conditions, but these investigations may eventually lead to safer propellers that break before serious damage is caused.
