Aircraft
Four lift motors on two slim booms lift it straight up. Two small motors on the leading edge pull it forward, and it flies on its wing with the lift motors off. Over the customer it hovers and lowers a sealed pouch on a line.
The firmware and the simulator run the same control code, proved by a test on every change. It returns home on its own if the radio link is lost, and never shuts down in the air.
The skins print in single-wall vase mode with internal ribs; only the spars are resin. No carbon fibre. Every part fits a desktop printer.
Editable airspace with logged authorisations, our own offline map of Uganda, and a backup radio link.
Without the lift booms the same airframe becomes Droni-Kilimo, a fixed-wing aircraft for chemical-free rainfall enhancement: it releases an electrostatically charged mist inside moisture-bearing clouds to help natural droplets grow. Built in Uganda, to be run with farmer cooperatives. In development.