One thing I find about existing hobby equipment is that often the shipping packages don’t really work as repetitive use storage boxes. Here I am working on making a shipping / storage box which will be both these things. The kit will come in 5 pieces, but once you start flying it you’ll probably leave the wingtips attached. Thus this storage box will allow the plane to be broken into 3 and stored with the box entirely closed. It will also be stackable so that a modest amount of load could be put on top of the box.
Talking about useful boxes. The Turnigy i10 transmitter comes in a fairly sturdy box. It’s still cardboard, but it’s coated with quite a strong plastic paper and the inside is a rugged polyethylene, which does not deteriorate. Polyethylene would be my choice, but the issue with shipping Gemot is keeping the entire package under 1kg. This is to keep the shipping costs available to WingFocus reasonable at this point in time.