You can bypass the whole medical issue by flying an ultralight designed for aerobatics. Were I in your position and had that desire, I'd do this:I hope to be an aerobatic pilot (preferably flying Extra 300's), but I suffer from Bipolar Disorder and have a few questions as to the effect this will have. First and foremost: Do I even have a chance? If so, what hoops will I have to jump through? What are my odds of getting a special issuance for a 3rd class medical?
- Get training in an LSA that is most like the aerobatic ultralight(s) that I'd want to be flying. So long as no solo is desired in the LSA, no need even for a student pilot certificate.
- Acquire aerobatic capable ultralight, attach a ballistic parachute (doesn't count against the weight limit, fortunately) and maybe even wear one (no parachute requirements in ultralight regs, but a good idea.)
- Go practice flying in aerobatics in the ultralight, working one's way up in difficulty.
Example: