Hi! Ivor/Everyone.
Unfortunately I've mixed up the TP9 and TP12 locations in the previous
message.
Please delete it and replace with the following which has been corrected.]
Sorry.
Bob H G-PTAG
-----Original Message-----
Subject: RE: tailplane torque tube reinforcing
Hi! Ivor. Happy New Year.
It isn't the pip pin holes that wear it's the drive plate (TP 12)drive pins
that wear into the tube of the TP12)according to Andy Draper. Your idea
sounds good but the bar would need pushing lots further down the tube, so
you would need to well coat the full length of the inside diameter and I
would suggest a piece long enough to encompass the TP9 pins too.THEN it
would ONLY protect the torque tube wearing, since it is not stainless it is
apparently more resistant to wear than the TP12 and TP9 stainless material.
I'm studying a clamp arrangement ( courtesy John Moran USA who has
successfully used Jubilee clips)I see a clamp with a hinge on the aft side
and captive nuts and bolts on the foreside to lock up the TP9, the tube and
the TP12 together ,should be able to apply it with one hand through the
inspection hole.(Requires two clamps one pair port and one pair starboard)
Pleased to hear you are progressing.
Have you applied yourself to my question "which fly-outs you would like to
go to ?"
Zoe was stuck for an exhaust problem recently ... after she brought it to me
to remove a silly heat sheild... I gave her your number !
Regards
Bob H G-PTAG
-----Original Message-----
From: owner-europa@post.aviators.net
Subject: tailplane torque tube reinforcing
hi guys i`m at the point of drilling my tailplane torque tubes and was
thinking of bonding in a small section of aluminise bar inside the tube
directly inline with the pip pins,
would this be a practical idea to increase the surface area of the pins, any
thought`s on the above would be appreciated
regards
ivor phillips
XS486 trike
----- Original Message -----
From: "Fred Fillinger" <fillinger@ameritech.net>
Subject: Re: Tailplanes
> > Would it make any sense to permanently bond the elevators in place?
> > I understand that the flight performance is exceptional with them at
full
> > size.
> > Perhaps a compromise between removableness vs small enough to fit w/in
7.5ft.
> > Better flutter resistance as well?
> >
> > Nic
> > xs a145
> > :)
>
> The only gamble would be whether you'd need to remove the torque tube
> to repair/replace something. Looks like hacksaw through the torque
> tube, and order up a new pair of stabilator cores and start all over?
> Flutter would be moot if factory arrangement is fabricated tightly,
> but some play is tolerable I would guess. There's a lot old planes
> with play back there, my other plane included. My inspector w/50 yrs
> experience tells me quit worrying.
>
> Regards,
> Fred F.
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