Ddrone, Sandaerodrone is a safe, weightless, H2/H2O aqua-eolic-solar, modular multicopter-airship for DELIVERY, advertising, filming, security, emergency, communication and energy. 4D HAI (Human Artificial Intelligence Network) lidar/radar/sonar/camera self/remote/teledriving adds the dimension of TIME, looking at past+present data to extrapolate future defensive scenarios. Ideal to operate near and over people with cushioned low impact structure. Floats on air recharging or slowly descends if runout of energy. Sandaerodrones can join Sandaerotrain or connect/pick-up a Sandaerocar Ocar, turning it into a Sandaerocar Avan, that can join the cabled system Sandaerotrain. Ocar can also join directly track or tunneled output solar/wind energy systems with 3 level system varying in speed and stops.