Drone prototype.

The important question is what kind of drone should be. At the moment, I have plans to use an f-450 quadcopter for the prototype. It is large enough to carry at least some kind of cargo and will allow you to fully demonstrate the work of this platform. The configuration of this drone is quite simple and the controller is Arducopter, GPS, WIFI, FLYSKY control. Additional modules can also be used. The chassis is high standard, and it can easily fit a cargo module. But we must remember that this is just a prototype. For real work, it is easier to use a standard drone from manufacturers. However, they will have to be redone somewhat. Attach a high chassis with a positioning system, secure a universal cargo container, if you want, then make a removable battery and organize a cargo container management system. If it is not possible to use a drone controller for control, then you will need to use a scheme with endings or a scheme with external control.
A photo of a real prototype that will be used for prototyping.


General view

The place where the universal cargo container will be located. The container will be attached to the rods that are clearly visible on the top.Here I would also add that the supports are very weak and will not withstand landing with a heavy load. Therefore, they should be made wisely in aluminum and or with shock absorbers. But this is a prototype.
There is no positioning system here either, it will be added later. It will also work as a shock absorber and increase the rigidity of the structure.