As an alternative can you do your drop test from a tethered balloon? Sometimes the rules between free flight and tethered flight are different.

Depending on the height you need, what are the rules surrounding dropping from a tall structure like say a bridge, apartment building, ski lift / gondola?

What about dropping while parasailing or sky diving?

What about detachable payload from a model high powered model rocket?

Does EU make a difference between "Drone" and RC plane or RC helicopter?

Sorry this is not an answer. I could not comment. I was hoping that maybe some of the suggestions my open alternative view on how to find a solution to your issue.

As an alternative can you do your drop test from a tethered balloon? Sometimes the rules between free flight and tethered flight are different.

Depending on the height you need, what are the rules surrounding dropping from a tall structure like say a bridge, apartment building, ski lift / gondola?

What about dropping while parasailing or sky diving?

What about detachable payload from a high powered model rocket?

Does EU make a difference between "Drone" and RC plane or RC helicopter?

Sorry this is not an answer. I could not comment. I was hoping that maybe some of the suggestions might open an alternative view on how to find a solution to your issue.