In article ,
Jim Logajan wrote:

Jim Logajan wrote:
Video of wing failure via AVweb:

http://www.youtube.com/watch?v=4a8cntPdRtk

RANS S-9 loses a wing in an airshow doing aerobatics; pilot survives
because plane is equipped with BRS and promptly deployed.

Natural to wonder whether some earlier stunt actually partially
cracked the spar.

Here's the original video which includes footage left out of the AVweb
version:

http://www.youtube.com/watch?v=XnHuIET4P2s

He was lucky! If the plane had developed more rotation in roll, he might
not have been able to deploy the BRS.

I remember looking at an S-9 under construction and did not like the
wing structural load paths through the fuselage. It would be interesting
to find out just what components failed and how much abuse the structure
had endured prior to the accident.

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