Small consumer drones unlikely to cause head injury, study says

An SZ DJI Technology Co. Phantom 4 drone carrying a bag of powder flies during a simulated chemical terrorism crisis as part of an anti-terror drill on the sidelines of the Ulchi Freedom Guardian (UFG) military exercises at the Korea International Exhibition & Convention Center (KINTEX) in Goyang, South Korea, on Monday, Aug. 21, 2017. South Korean President Moon Jae-in warned North Korea not to use his nation’s latest round of annual military drills with the U.S. as an excuse for any further provocations. Photographer: SeongJoon Cho/Bloomberg

The small, popular drones flooding the commercial market are unlikely to cause severe head injuries if they fall out of the sky and strike people, a new study has concluded. 

The results are similar to findings earlier this year by researchers associated with the Federal Aviation Administration and offer more justification for opening the door to unmanned operations over crowds.