All
I believe Roger Bull had an incident with the servo trim tabs which
resulted in the modification which stiffened the drive pin plates.
Perhaps he would kindly contribute to this thread?
When I had my trim motor "failing to reverse" without going to full
travel position problem, the forces on the control stick were enormous
to such a degree I allowed the plane to climb momentarily until it
reached full trim nose up position before reversing the mode of
operation. I would have had great difficulty landing in this
configuration in fact I doubt it possible.
Regards
Bob H.
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of Duncan &
Ami McFadyean
Sent: 12 September 2007 10:38
Subject: Re: Europa-List: StructuraL failure or?
<ami@mcfadyean.freeserve.co.uk>
On the other hand, I have had one of the little plastic bushes in the
T-bar
fall out during derigging, although this was spotted before the next
flight.
But what could have been the consequence had it not been spotted?
Duncan Mcf.
----- Original Message -----
From: "Carl Pattinson" <carl@flyers.freeserve.co.uk>
Sent: Tuesday, September 11, 2007 10:10 PM
Subject: Re: Europa-List: StructuraL failure or?
> <carl@flyers.freeserve.co.uk>
>
> 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>
> To: <europa-list@matronics.com>
> 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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