Tim,
Well... my top isn=92t on and I=92ve had mine out a few times for
various
issues, inc. Mod 70. I=92d rather not make it fixed permanently in
there.
Also, won=92t welding there risk distortion in the brass bearings?
Will a spot weld be sufficient? I=92m no engineer, but (speaking purely
from
gut feel) I doubt a spot weld will be strong enough.
That said, I do have a strong preference for Nigel Graham=92s bolted
solution
to avoiding the slop that has caused TP6 breakaways. Easy to install,
easy
to retrofit, and will do the job permanently.
As for tailplane lateral retention, I regret that none of the solutions
so
far have caught my eye as elegant, simple and effective L
Regards,
Jeremy
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of Tim Ward
Sent: 17 July 2007 12:36
Subject: Re: Europa-List: Europa Tailplane - Mod 73
Jeremy,
Who wants to take it out? Is there likely to be maintenance on TP4? If
it
was easy to take out now why don't we do that and place the TP 14s for
something better. The fact is it is very hard to take it out now, is it
not?
If you had to then the spot weld could be dismantled.
Food for thought.
Tim
Tim Ward
12 Waiwetu Street,
Fendalton,
CHRISTCHURCH 8052
Ph :64 03 3515166
Mob: 021 0640221
email:
ward.t@xtra.co.nz
----- Original Message -----
From: Jeremy Davey <mailto:europaflyer_3@msn.com>
Sent: Tuesday, July 17, 2007 10:43 PM
Subject: RE: Europa-List: Europa Tailplane - Mod 73
Because then, Tim, you=92ll never remove TP4 for maintenance again... At
least, you won=92t without the need to replace it in its entirety, with
all
the difficulty of re-drilling accurately for the TP6 pip-pin holes.
Kind regards,
Jeremy
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of Tim Ward
Sent: 17 July 2007 11:01
Subject: Re: Europa-List: Europa Tailplane - Mod 73
=EF=BB
Why don't we get a certified welder to weld TP12 to TP04 to avoid any
torsion stress on TP6 sleeve?
Tim
Tim Ward
12 Waiwetu Street,
Fendalton,
CHRISTCHURCH 8052
Ph :64 03 3515166
Mob: 021 0640221
email:
ward.t@xtra.co.nz
----- Original Message -----
From: R=C3=A9mi Guerner <mailto:air.guerner@wanadoo.fr>
Sent: Tuesday, July 17, 2007 9:11 PM
Subject: Europa-List: Europa Tailplane - Mod 73
Graham and Mike,
I agree. Mod 73 is a very poor fix for a bad design. I like the idea of
he
single tube with a flange.
I am also concerned about relying on a single pip pin to secure the tail
plane to the aircraft. As there is no way to visually check that the pip
pin
is fully engaged and the balls are protruding below TP6, a pull test
would
be highly desirable. A special plier would be needed for that pull
test.
Alternatively, a big recess on the underside of the tail plane would
allow
an uneasy visual inspection with a flashlight. The rear wing pip pin
can be
checked that way. Moreover I like the idea of a back up tail plane
locking
device such as the spring loaded lever.
Remi Guerner
F-PGKL, XS S/N395 monowheel, 912S, Airmaster, 487 hours
From: Graham Singleton <grahamsingleton@btinternetcom
<mailto:grahamsingleton@btinternet.com> >
Subject: Re: Europa-List: Europa Tailplane - Mod 73
Mike
I agree with you. A simple redesign would be to make TP5 and 6 one
single tube, with lightening holes, weld a flange on it that bolts onto
the inside of the root rib. Relying on a bond between epoxy and
stainless steel is not sensible. imho
I still wish we knew more about what went wrong with G-HOFC though.
Graham
Mike Parkin wrote:
> <mikenjulie.parkin@btinternet.com>
>
> Nigel,
>
> Unpopular as it may be, I think you are right. Mod 73 strikes me as a
> very unsatisfactory fix for a poor design.
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