Construction Drones – Expanding Building Reach Beyond Roads

I propose adding a new unit type to Captain of Industry – construction drones. These flying unmanned machines would be able to carry small amounts of construction materials and build structures in areas that trucks cannot reach (e.g., islands, mountainous regions, or remote platforms).
The drones would operate within a limited range from a designated hangar or control center, with restrictions on cargo capacity and range. They would require electricity and periodic maintenance.
This addition would enable earlier infrastructure planning and building beyond the current reach of ground logistics – even before roads or bridges are constructed.