Is the tail flutter problem the consequence of having
easily removable stabilators?
jp
--- "R.C.Harrison" <ptag.dev@tiscali.co.uk> wrote:
> Hi! Remi
> You forgot my torque tube clamps as a permanent fix
> for no slop ever.
> Regards
> Bob Harrison G-PTAG
>
> Robt.C.Harrison
>
> -----Original Message-----
> From: owner-europa-list-server@matronics.com
> [mailto:owner-europa-list-server@matronics.com] On
> Behalf Of Rmi
> Guerner
> Sent: 24 June 2007 09:56
> To: europa-list@matronics.com
> Subject: Europa-List: Tailplane flutter
>
> Hi all,
>
> The half inch play tolerance as specified by the
> factory means that, in
> a more than one degree range, the tailplanes are not
> balanced at all.
> This is a possible cause for flutter. I consider
> that any play in the
> chain between the mass balance arm and the
> tailplanes is unacceptable:
> that means zero play between TP4 and TP9 and zero
> play between TP 4 and
> TP12. The factory solution is Mod 62: replacement of
> the pins by 3/8
> pins. This mod is known to only delay, not
> eliminate, the problem. As
> far as I know, there are 3 solutions which have been
> implemented
> successfully by builders:
> - gluing TP9 and TP12 to TP4
> - replace the straight pins TP14C and TP14D
> by AN486 taper pins
> - replace the straight pins TP14C and TP14D
> by AN bolts
> As some builders have mentioned in this forum in the
> past, all these
> solutions have their own inconveniences and must be
> implemented
> carefully, but I believe these inconveniences are
> far outweighed by the
> safety of a fully balanced tailplane in all
> conditions.
> Regards
>
> Remi Guerner
> F-PGKL, XS S/N395 monowheel, 912S, Airmaster, 482
> hours
>
>
>
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