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Standards for Sailplanes (I4-FVK/91)

Standards for Sailplanes (I4-FVK/91)

Standards for Sailplanes (I4-FVK/91)

(OP)
Does anyone have a copy of OR know how to find the following document?

"I4-FVK/91 Standards for Structural Substantiation of Sailplane and Powered Sailplane Components Consisting of Glass or Carbon Fiber Reinforced Plastics” - LBA July 1991"

It should be a public paper of the German Civil Aviation Authority/LBA accepted by EASA for certification of small composite Airplanes. I have send a query on the LBA website already. If there is a better means of contact, please let me know.

Thanks for your help.
Replies continue below

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RE: Standards for Sailplanes (I4-FVK/91)

This same question was asked in a prior E-T thread... almost verbatim... and only 1 lukewarm answer was posted...

Composites certification approach for aircraft structures
https://www.eng-tips.com/viewthread.cfm?qid=409265

Foreign specifications are difficult to procure.

Regards, Wil Taylor
o Trust - But Verify!
o We believe to be true what we prefer to be true. [Unknown]
o For those who believe, no proof is required; for those who cannot believe, no proof is possible. [variation,Stuart Chase]
o Unfortunately, in science what You 'believe' is irrelevant. ["Orion", Homebuiltairplanes.com forum]

RE: Standards for Sailplanes (I4-FVK/91)

A Google-search short list included this EASA document...

CM-S-006 [I1] Certification Memorandum - Certification, Type Design Definition, Material and Process Qualification for Composite Light Aircraft
https://docplayer.net/89024909-Certification-memor...

Regards, Wil Taylor
o Trust - But Verify!
o We believe to be true what we prefer to be true. [Unknown]
o For those who believe, no proof is required; for those who cannot believe, no proof is possible. [variation,Stuart Chase]
o Unfortunately, in science what You 'believe' is irrelevant. ["Orion", Homebuiltairplanes.com forum]

RE: Standards for Sailplanes (I4-FVK/91)

(OP)
I have managed to get hold of a copy from the LBA. Just for information, this document forms the requirement basis for composite materials including the fatigue test requirements.

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