Autorotate
Agricultural aircraft in the US are normally in the RESTRICTED Category.
Rich Lee
The MD520N was instrumented and tested for aerobatic maneuvers so that it would be certified under Part 27 as an aerobatic capable aircraft but the FAA was unable to define the basic rules for the certification and the request was dropped.
And the category still doesn't exist.
Nick Lappos
I can also attest to having done aerobatic displays in front of large crowds in helicopters that would have otherwise have been restricted to non-aerobatic flight. All legally, and none having produced any damage to any part of the machine.
In the RESTRICTED or EXPERIMENTAL category but not NORMAL, can vouch for that, S76 Fantail, Le Bourget 1990 or 91, Awesome.
Well no permanent damage anyway, ex SK guy next to me MIGHT refute that statement.
STL
An EC135 is as spirited as any of them and would appear to be relatively modern.
It would appear that Rich and Nick operate aircraft in a controlled premeditated environment and perform manoeuvres that the aircraft are entirely capable of. The aircraft are, or either have been previously, instrumented for these operations and they are well aware of what they are doing. The aircraft are closely inspected and monitored.
People take photographs and they get posted, so what.
Somebody in a NORMAL category aircraft decides to put on an impromptu private airshow for a photographer showing manouevres well outside POSSIBLY what it was tested for by a pilot who POSSIBLY has never seen any results of instrumented flight testing and has NO training as a Test pilot. Then calmly puts the aircraft back in the hangar for the next person to fly.
The previous POSSIBLY happens once a week.
Then the images get posted in the PUBLIC domain as NORMAL.
Nah, sorry thats the bit I just don't get.