The chair reminded the group on the discussion on this subject. He wondered whether further comments are available. No further comments were received so it was agreed to consider the subject accordingly when the new wording of the gtr No 9 amendment will be drafted.

A similar subject was presented by Mr. Zander with document GTR9-6-10. He also concluded that the free flight should be specified in more detail. BASt proposed a 30 ms long period before the impact in which the bending moments should not exceed 15 Nm. In addition, BASt proposes to clarify that the zeroing of the corridors should be done when the impactor is still free hanging and no load is applied to it. On request he clarified that BASt, at least for the time being, has no proposal on the ligament elongations. Dr. Konosu proposed to use a pragmatic approach and just limit these elongations at 1 mm. He explained that this is also done in Japan.

Mr. Martin asked where in fact t = 0 is fixed and whether this has an influence on the two proposals. Mr. Zander and Mr. Kinsky responded both that this is not seen since in fact the t = 0 does not really have a meaning here: It does not influence the test results and the corridor for the free flight just needs to include half of one wave length for the assessment.

After some discussion it was agreed to study the two proposals and to come back to this during the next meeting.