As you know, I want to create a variety of drones, but this one, its incredible. One dji drone replaced with a jet engine (from hackaday), and then the biomemetic robotic arm from Will Cogsleys youtube channel, (check it out) for sports like football and basketball, and other activitys. Is it legal, and what drone would be best for this?

Hi! You might be better off posting your question in the 'products' section of this forum.  That is way more active.    -   https://forum.dji.com/forum-129-1.html