John Rogerson's battle with the PFA culminates in this

"Test to Destruction."

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Wing in the test rig- Ready to go!

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Wing on test rig showing the modified rear spar, internal and external compression members at strut attachment.

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Wing at 6.2 g- sill intact.

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View of rear spar at 6.0 g which is ultimate load.

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Failure made at 6.29 g.  Rest of the structure intact.