Where it is controlled by commands from the ground, it is an RC model.
MACI is the body which represents RC model aircraft users in Ireland.
Here is the MACI standard safety practice for RC model aircraft:
It does not cover large models specifically, and I understand that MACI have special requirements for those particular models which would be available on application..
There are also personal liability and insurance considerations which which should be weighed up before launching small aircraft over other people and their property. In general, it's leaving you open to all sorts of nasty outcomes, and just don't do it.
A drone is usually an aircraft which contains it's own autonomous control system, that is, it can fly without taking commands from the ground. I know several people have made them to fly indoors in a contained space.
For outdoors use it would be a good idea to contact MACI with regard to such flying machines, as I suspect they are illegal under present laws.