Your following message has been delivered to the 152 members of
the list murphy-rebel@dcsol.com at 12:27:43 on 23 May 2000.
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It also gets worse if you build too much "clearance" into the mixer arm
holder plates. This will allow the arm to rock (or twist in reality) between
the holders, which inturn allows the pushpull bellcrank to "tip" inward and
of course this lowers the pushpull tubes and then the flaperon. The tighter
you can keep the arm in the holder plates the better, just keep it
lubricated so the common metals don't gall on each other.
If someone was flying around with an unriveted tube plug/horn, they would
have rolled their plane up into a ball by now!!!!!!!!!!!
As always, my 2 cents,
Blue skies,
Wayne G. O'Shea
www.irishfield.on.ca
-----Original Message-----
From: Alister Yeoman <yeoman@voyager.co.nz>
To: Murphy Rebel Builders List <murphy-rebel@dcsol.com>
Date: Tuesday, May 23, 2000 12:52 AM
Subject: Wiggly flaperons !
canHi All,
This talk of movement in the flaperon linkage must be a storm in
a teacup!
If you hold one of my flaperons solid on one side and move the other you
intoget virtually full movement too.
It is coming from the slack within the flaperon cable setup. Once you start
flying and the flaperons 'load up' and take all the slack out of the system
everything is all tight again.
Hope this helps.
Cheers
Alister
-----Original Message-----
From: rebelair <rebelair@idirect.com>
To: Murphy Rebel Builders List <murphy-rebel@dcsol.com>
Date: Tuesday, May 23, 2000 1:15 PM
Subject: RE: reply to Brian
HI Geert
As I recall, there are a total of eight of these plugs (EL-31?) fitted
wholethe 2" torque tubes. These include the ones inside the cockpit. The
shearedrotationconcept of one or more of these plugs not riveted with the qty. 8, 3/16"
rivets is inconceivable/unthinkable!
I agree this is one of the very few reasons that there could be anymaybeas you suggest. I am not disagreeing with you at all. I suppose thatthat not all of the rivets were installed and the rivets could have
isthrough the very thin wall tubing (which is only 0.035" I recall). This
doesreallythe only thing that I could think of off the top of my head. This is just
something I never could have imagined. MAM used 3/16", qty. 8, stainless
steel rivets per joint for a good reason. You never would want this to
fail. Don't people check this kind of stuff during construction. Itmakes you think twice about buying & flying somebody else's amateur built
aircraft. I am a strong supporter of the amateur built concept but it
problem!!veryrely strongly upon the inspectors & also the idea that the inspector isfamiliar with the aircraft he is inspecting. A big job considering the
number of possible aircraft that can be built in this category.
Lets pray that there really is not 5 aircraft out there with this
IflightPlease keep us posted if you hear anymore.
Thanks
Brian #328R
-----Original Message-----
From: Geert Frank [mailto:storchpilot@mediaone.net]
Sent: Monday, May 22, 2000 10:51 AM
To: murphy archives
Subject: reply to Brian
Hi Brian, yeah it reads a little funny, but that is exactly what I am
suggesting. There cannot be any other way you can have aileron use inyouAND be able to do what he is apparently capable of doing. Those plugs ascorrectly call them are a very tight or press fit into the tube, I SUPPOSE
that you could have one or two that were not rivetted AS THEY ARE SUPPOSED
TO BE OF COURSE and precisely because of the press fit and therefore the
friction of the plug inside the tube, you could get the tube to move, read
rotate. If I am recalling right, there are six of those plugs with control
arms attached, three different lengths of torque tube and two plugs of
course per tube. Now you have been inside these aircraft a lot more than
most of us, maybe you can come up with another theory, exactly the reason
-put it out there. OK? Needless to say, as he flies a little more,
the plug(s) will "wear" away some of the friction and we are looking at a
very bad situation. Regards, Geert
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