In article . com,
says...

On May 17, 9:27 pm, Barnyard BOb wrote:
wrote:
What authority states the Capella cannot safely perform
the aerobatics in question WHEN EXECUTED PROPERLY?

Does the manufacturer claim it can?

Fred, given our litigious society...
Manufacturers seem loath to claim anything,
other than they are NOT responsible. g


http://www.aviataircraft.com/pitts/overview.htm

PITTS S-2C
Until you've flown the new Pitts S-2C, there's no way to fully
comprehend the way we have harnessed the power, expanded the
performance envelope, locked in a new level of precision and taken the
lead in aerobatic flying technology.

http://www.extraaircraft.com/about_history.asp

1998
The FAA Type Certificate is received for the EXTRA 400, flown by many
world aerobatic champions, including Patty Wagstaff.

http://www.russianaeros.com/yak55product.htm

Aerobatic

We say that the '55 will give 85% of a Sukhoi's performance at 40% of
the cost, which is a reflection of the aircraft's capability. It is
very tough, rugged and with very good performance. It has quite a lot
of drag because of its thick (but of course very strong) wing, but of
course a lot of power to overcome this.

http://www.amerchampionaircraft.com/newac/newmain.htm

Our ZLIN Z 242 L (PDF file 357KB) training and fully aerobatic two
seater,


http://www.amerchampionaircraft.com/newac/newmain.htm

Super Decathlon

Fully Aerobatic

The above aircraft were designed to be aerobatic machines the Capella was never
advertised as such .As best as I can remember the only person to talk about
looping rolling and spinning a Capella was zoom nothing I ever read from the
factory ever made any of those claims. Just my .02 cents worth

Chuck S