Please be assured you would know if you attempted a takeoff with the T bar
disconnected - I have done it !!!!
On commencing the takeoff run the stick was VERY back heavy such that when I
started to ease the stick forwards I assumed the controls were jammed and
aborted the takeoff. Gravity makes the trim tabs hang down forcing the
trailing edge of the tailplanes upwards. As this is the normal position for
takeoff (stick hard back till airspeed is reached), the problem dosent
become obvious till the pilot tries to move the stick forward in order to
raise the tailplane. Believe me it isnt something you could miss.
If only one of the pins was engaged this would disengage fairly rapidly.
Even if this didnt occurr there would still be a substantial force acting on
the disengaged tailplane which would be hard to miss. It is unlikely that
this could be trimmed out using the trim servo.
Carl Pattinson
G-LABS
----- Original Message -----
From: "josok" <josok-e@ukolo.fi>
Sent: Tuesday, September 11, 2007 3:23 PM
Subject: Europa-List: StructuraL failure or?
>
> Hi All,
> As far as i know there is still no conclusion from the AAIB about the
> cause of this one and only structural failure. It keeps buzzing in my
> mind. It is a fact that there should be no slop in tail planes, that the
> bushes should be secure, and that wing pins should be properly attached.
> Period.
> But was it the cause off the accident? Speed 90 knots, no abnormal
> movements, then suddenly very steep up and down movements, paper flying
> from the cabin. All according the AAIB report.
> I received the following suggestion, which i think has not been
> communicated before: The plane was rigged by three persons. What if one of
> the anti-trim tab drive pins was not in but on the T-rod? Everything would
> look pretty much OK, feel pretty much OK, until the pin would pass the
> T-rod, on which the anti tab would become a pro-tab. This would cause a
> violent movement, on which the pilots correction would cause another and
> so on, until destruction. It would explain the described up and down
> movements eh? Start shooting please!
>
> Regards,
>
> Jos Okhuijsen
>
>
> Visit - www.EuropaOwners.org
>
>
>
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