Why so many post? Ha ha. Let me add one more.
Adding the Aerobatic certification entry does not put it back to Phase 1 as far as I know.
I am more interested not in the paper work but safety.
My question have YOU done aerobatics? Have you done them in an RV?
Read Van's info on doing aerobatics in an RV. Know you entry speeds.
What speeds and maneuvers do you plan on demonstrating?
Are you doing it solo? Parachute? Is not required solo* but a keen idea doing aerobatics.
What airspace is legal (G and most E except airways). Hard deck 1500' AGL.
Note if you do it over where people see and complain, you may get FAA involved even if 100% legal. ADS-B is a wonderful thing.
Can you have an experienced pilot fly with you? Yes, but recommend they meet AC 91-116. Within Aerobatic max weight. You will need two chutes with two pilots.*
Read Van's info on doing aerobatics in an RV. Know your entry speeds.
Highly recommend a G-METER if only temporarily installed. NO maneuver needs more than about 3G's to enter or exit.
I have new to RV Acro pilots do a smooth wings level 3G pull up, relax back to 1G and level off again. Why? To get feel for stick pressure.
Then I have then do very near full stick deflection roll left no more than 60 degrees and back 60 degrees the opposite direction, and back level.
This gets them use to roll rate and making large control deflections in roll. You don't want to DISH out of a roll into a steep inverted dive.
RV-4 and RV-8 stick gets VERY light with a back seat passenger. Again fly with experienced aerobatic pilot in an RV first is my suggestion.
What maneuvers will you certify to? Loop, Left/Right slow aileron roll, barrel rolls L/R, Immelmann, and Split-S. The last one too high entry speed, say from cruise speed could be fatal. You have to slow way down. RV's build speed like a demon. I personally am not a fan of spins in the RV-7 even with the big rudder, but spins should be part of the test program IN MY OPINION. Why aerobatic maneuvers can end up being a spin. This is why I recommend a sport pilot emergency chute and way to jettison canopy. Gets some ground training on how to use an emergency chute. I think all RV's have demonstrated spin and spin recovery by Van's Aircraft. If I do spins in is one fully developed rotation, and start recovery. One and done. RV's like many planes have modes of spins, incipit and full. Some have a second full mode, typically after more than 3 rotations, they wind up. RV-7 has this second full mode which I understand is spectacular, but recoverable. Van's AC hired a flight test pilot. Not even Van the man wanted to do it. (BTW Van is a fantastic pilot and has aerobatic waver I recall. He has done airshows). That is why the early RV-7's had a change the initial rudder, larger, to help spin recovery. Early empennage kit buyers with small shorter chord rudder, got the new larger rudder sent to them. Clearly entry for intentional spins is well above 1500 agl for spins.
* Parachutes During Aerobatics 14 CFR 91.307. Section (c) states:
"(c) Unless each occupant of the aircraft is wearing an approved parachute, no pilot of a civil aircraft carrying any person (other than a crewmember) may execute any intentional maneuver that exceeds --
(1) A bank of 60 degrees relative to the horizon; or
(2) A nose-up or nose-down attitude of 30 degrees relative to the horizon."
Note that this regulation states that, during aerobatic flight, all persons in the aircraft must have a parachute whenever people OTHER THAN CREWMEMBER(S) are carried. Therefore, when the only person on board is the pilot, and no others are carried, a parachute is not required. However, when a passenger is carried in an aircraft during aerobatics, all persons on board INCLUDING crewmember(s) are required to be wearing parachutes. (There is one exception to this I know of.)
I am sure no one has ever done a loop or roll with a passenger without parachute.