[SystemSafety] QF 32 and the Airbus A380

[Bernd Sieker]

On 28.09.2012 16:06, michael.lemay at aero.bombardier.com wrote:
>
> I've had some experience doing loads and dynamics on transport-category
> aircraft, so maybe I can provide some insight.

Thank you, Michael, that was very interesting.


> On 26.09.12 10:37, Bernd Sieker wrote:
>
>  > All transport category aircraft have to be designed for the same load
>  > factors. These are +2.5 G and -1 G with high-lift devices retracted
>  > ("clean"), and +2.0 and 0 with flaps/slats extended (design limit load).
>
> Some references for that: CS 25.337 and CS 25.345, respectively.
>
> CS 25: Certification Specifications for transport category aeroplanes,
> found at
>
> http://www.easa.europa.eu/agency-measures/docs/certification-specifications/CS-25/CS-25%20Amdt%2012.pdf
>
> AMC 25.307 specifies that structures need be shown to support limit load
> with detrimental permanent deformations, and ultimate load (usually 1.5

sorry, that should obviously be "without detrimental permanent 
deformations".

> times limit load, CS 25.303) without failure.
>
> AMC 25: Acceptable Means of Compliance, Book 2 of CS 25, which specifies
> some acceptable means, but not the only possible ones, of showing
> compliance with the specifiations in CS 25 (Book 1).