My only real concern is the “unacceptable modifications” section
We don’t deal with off the shelf RTF toys.
We do autopilots that are at the core of the majority of Non DJI RPAS in Australia and around the world.
The 20% of gross weight will simply change depending on payloads fitted.
I would think that a simple... if modified outside the terms of the vehicles operation manual should suffice here?
For example, a farm drone with a max takeoff weight of 25KG may have a tank that is half that load.. and may fly camera missions at 12KG etc.
Not to mention research and development work, where a vehicle can change completely from one flight to the next. Surely some R&D exclusions need to exist