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From: Drew Radford <drew.r.radford@boeing.com>
Subject: Re: Real life : Can a 747 perform a roll?
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Paula Jenkins wrote:
> 
> Aaron,
>     All aircraft must be able to recover from spins.  Though aircraft like
> the 747 probably would survive rolls and loops, they are not required for
> certification.
> 
> P.
> 
> Aaron Turner wrote:
> 
> > I thought airliners were required to be capable of rolls and loops for
> > certification.
> >
> >         Aaron Turner

There is no place in the regulations that require a plane to be spin
recoverable. A 747 is definitely not recoverable from a spin, as are
most swept wing planes. The Globe Swift tends to become unrecoverable
after a few turns. I've even heard that the good ole 152 can be pretty
dicey after it gets fully wound up but that is just what I heard. Art
Scholl a famous aerobatic pilot died in an unrecoverable spin in a
Pitts.
