Sustainability and Environment
Research Tweaks Rules of Thumb for Helicopters Flying Neighborly
Tests of six different helicopter models last year, which collected more than 1,500 data points, put “scientific rigor behind the rules of thumb."

Two “Fly Neighborly” proponents— Scott Burgess of Embry-Riddle Aeronautical University and David Bjellos, the 
aviation manager at Agro Industrial Management—returned at Heli-Expo to reiterate the need for noise abatement and reveal new findings on noise avoidance.