“…Skyfront, a manufacturer of long-endurance hybrid-electric drones, has updated its Perimeter 8 drones to enable autonomous long-range terrain-following capabilities with the help of ground-penetrating radars and airborne magnetometers. Holding the world record for a multirotor drone flight time of 13 hours and 4 minutes, Skyfront’s Perimeter 8 was designed to fly for hours and carry large payloads in a wide range of operating conditions. As an eight-rotor drone equipped with the company’s proprietary fuel-injected G2K hybrid-electric power source, which converts gasoline into electricity in-flight, the Perimeter 8 can carry up to a maximum of 17 lb. payload capacity for 1 hour, or 11lbs for 2 hours flight time, within a flight range of 110 miles…”