The goal of Drone4 was to enable an alternative heavy-duty electric drone delivery. This creative thinking has been further developed to what we can now boast: the most effective drone on the market suitable for a heavy load. This megadrone has capacities of more than 500 kg and reaches flight times of up to 30 minutes. We are currently working on military and large-scale delivery concepts and also with concepts for spraying agricultural crops. These special drones are of course fully programmable and GPS-adaptable.