We still can't avoid the question: why did this happen WHEN it did?
Mark makes a good point about slop, in any case, slop would normally
built up slowly. David's information about speed seems to rule that
out as a trigger event. Just a thought, but if one of the stabs
became disengaged, for any reason (sideways movement, loss of TP14D
pin - secured by a single small split pin) from the TP12/13 drive
flange, presumably the other stab would instantly be countering all
of the mass in the TP19 weights, thereby creating a sudden and huge
mass imbalance - enough to cause catastrophic flutter?
Willie
On 22 Jun 2007, at 17:55, David Joyce wrote:
> <davidjoyce@doctors.org.uk>
>
> William, At the PFA today I was told that the radar trace of
> William's plane
> showed it was going at 90 knots or so. He would have done his Vne dive
> somewhere on the way back from Cornwall - all very perplexing.
> Did my Permit renewal test flying today and didn't like
> to ask
> someone to come along as ballast/observer!
> Regards, David Joyce
> ----- Original Message -----
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