Drones could cut time and costs for deliveries and inspections across the Maersk Group – but they must be reliable and absolutely safe. Maersk Tankers is testing delivery to vessels on drones that have been certified for explosive environments. Markus Kuhn peers out through the fog and spots the Maersk Edgar waiting across the chilly Danish waters. Drone operator Thierry Bauer, dressed against the winter cold after a long journey from his centre of operations in Southern France, carefully attaches the cargo of Maersk cookies to its transport.