June 11 (UPI) -- Today, almost anyone who flies a drone must maintain visual contact with it at all times, a practice known as visual line of sight . This requirement severely restricts how far craft can fly. When the Federal Aviation Administration rule changes allowing people to fly their drones beyond visual line of sight are finalized, commercial use is likely to soar. Flight beyond visual line of sight will fundamentally change drone operations, allowing for a wide range of applications.