![](/assets/images/picto-drapeau-france-3a76576a5d60a512053b4612ab58dae5.png)
3. Conclusion
The three flight envelopes thus defined are the reference for regulatory dimensioning in civil aviation. They have the advantage of providing static loads, whereas the phenomena at the origin of these loads are fundamentally dynamic. They can therefore be supplemented by a dynamic parallel approach of the "flexible aircraft" type, which will integrate structural modes (vibrations and response following a transient event) and aeroelastic interactions. Nevertheless, they are sufficient to qualify structures and prepare for certification campaigns, with primary static and fatigue tests compared with the calculation file.
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Conclusion
Bibliography
Standards and norms
CS25 and FAR25 certification documents http://easa.europa.eu/document-library/certification-specificationshttp://www.ecfr.gov/cgi-bin/text-idx?c=ecfr&sid=...
Directory
French Aeronautical and Astronautical Association (3AF) http://www.3af.fr/events
Air and Space Academy (AAE) http://www.academie-air-espace.com/event/newList.php
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