Today's Message Index:
----------------------
1. 04:49 AM - Re: print a copy (Jack Phillips)
2. 06:02 AM - Re: aileron connections; was strut bracing (Alan James)
3. 12:57 PM - Re: aileron connections; was strut bracing (Graham Hansen)
4. 09:58 PM - Thanks guys, keep them coming (Christian Bobka)
Message 1
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--> Pietenpol-List message posted by: "Jack Phillips" <jackphillips@earthlink.net>
Yeah, I'm pretty stupid, but not THAT stupid. I meant I remade the brackets
(the shrouds are still aluminum - I type faster than I think, sometimes). I
think I've got all the old correspondence on this subject. I will put it
together and send it to your e-mail, Chris.
Jack
-----Original Message-----
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Christian
Bobka
Subject: RE: Pietenpol-List: print a copy
--> Pietenpol-List message posted by: "Christian Bobka" <bobka@charter.net>
Jack,
I hope it is just the part that goes under the nuts that you remade? Not
the WHOLE eyebrow?
chris
-----Original Message-----
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com]On Behalf Of Jack
Phillips
Subject: RE: Pietenpol-List: print a copy
--> Pietenpol-List message posted by: "Jack Phillips"
<jackphillips@earthlink.net>
Will do, Chris.
I just finished re-making the cooling shroud eyebrows out of steel to
replace my original aluminum ones that mount underneath the middle base nuts
on the cylinders, per your suggestion. I will send you an email to your
address with pictures.
Jack
-----Original Message-----
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Christian
Bobka
Subject: RE: Pietenpol-List: print a copy
--> Pietenpol-List message posted by: "Christian Bobka" <bobka@charter.net>
Kirk,
I may need some help from you guys. The DAR application asks for
referrals. I can think of no better group to ask than those that I have
been helping with book sales, advice, etc. these past few years.
I was thinking that if each one of you could send me an email stating ways
that I have helped you through the building process, it may bolster the
chances of the DAR going through. It is a tough application. If any of you
should choose to do this, finish it up with your name, N number if you have
one assigned, and your email address. That way I can print them all out and
throw them in with the app to the FAA. Thanks.
Chris Bobka
-----Original Message-----
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com]On Behalf Of The
Huizenga's
Subject: Re: Pietenpol-List: print a copy
--> Pietenpol-List message posted by: "The Huizenga's"
<kirkh@unique-software.com>
Hurrah Chris!!!!!!!
Great to hear - I'll be giving you a call sometime in the next year
hopefully.
Kirk
St Paul, MN
>--> Pietenpol-List message posted by: "Christian Bobka" <bobka@charter.net>
>
>Dick,
>
>I forgot to mention that you should probably print a copy of what I just
>sent and keep it around to show the DAR. BTW, I am applying through the
EAA
>to get my DAR so I can inspect everybody's Piets!
>
>chris
--
Kirk Huizenga and Bryan Eastep's Aircamper and Corvair Project
http://www.mykitplane.com/Planes/photoGalleryList.cfm?Menu=PhotoGallery
Message 2
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| Subject: | Re: strut bracing |
--> Pietenpol-List message posted by: "Alan James" <MADjames@theknapp.freeserve.co.uk>
Les,
I have just taken a couple of shots of the centre section showing the
aileron connect. The wing has an identical bracket & lever (inverted) which
couples up to it when the wing is offered up. It seems to be a common
arrangement, I can remember seeing an identical system on a USA low wing
homebuilt some years ago and I think Jim must have copied it. The end wing
rib and centre section ribs are beefed up to take the load (filled with
hardwood and faced each side with ply) and a full width compression spar is
fitted between the c/s ribs behind the lever mounting brackets. The system
makes assembly very straightforward but there is a downside:
1. Additional complexity and weight. 2. Extra friction in the controls. 3.
The aileron horns have to be altered in length to match the length of the
connecting arms (10" total) otherwise you have problems with the geometry
and varying cable tension. 4. This means you loose any differential movement
in the ailerons.
Don't get me wrong, it works ok when everything is set up and I have had no
bother with it since installation. It's just not worth the effort if you are
dis-assembling only a couple of times a year.
Roll on spring
Alan
----- Original Message -----
From: "Les Schubert" <leskarin@telus.net>
Subject: Re: aileron connections; was Pietenpol-List: strut bracing
> --> Pietenpol-List message posted by: Les Schubert <leskarin@telus.net>
>
> Alan
> any chance of a picture of how this works. It sounds quite interesting.
> I am still building and was pondering how to connect the control cables
> for the 3 piece wing.
> Les
>
> At 08:42 PM 29/01/2003 +0000, you wrote:
> >--> Pietenpol-List message posted by: "Alan James"
> ><MADjames@theknapp.freeserve.co.uk>
> >
> >Hi Ted,
> >Yes, its a quick connect. As you offer the wing up to the centre section,
2
> >levers come face to face to complete a control loop to the aileron. Apart
> >from making it a little quicker to assemble, I believe it was also
intended
> >to get around the need for duplicate control inspections as required by
the
> >PFA. Jim also came up with some quick-release bracing cables (between the
> >lift struts). Personally, I would not bother with this mod unless you
intend
> >assembling and dis-assembling the machine every other weekend. After all,
> >its only three cables that need joining -one on each side of the aileron
> >torque/control arm and a break in the balance cable in the centre
section.
> >
> >Regards
> >Alan
> >
> >
> >----- Original Message -----
> >From: "Ted Brousseau" <nfn00979@naples.net>
> >To: <pietenpol-list@matronics.com>
> >Subject: Re: aileron connections; was Pietenpol-List: strut bracing
> >
> >
> > > --> Pietenpol-List message posted by: "Ted Brousseau"
> ><nfn00979@naples.net>
> > >
> > > Alan,
> > >
> > > Please tell us more about that auto-aileron connect facility. Is that
a
> > > quick connect?
> > >
> > > Ted
> > > ----- Original Message -----
> > > From: "Alan James" <MADjames@theknapp.freeserve.co.uk>
> > > To: <pietenpol-list@matronics.com>
> > > Subject: Re: Pietenpol-List: strut bracing
> > >
> > >
> > > > --> Pietenpol-List message posted by: "Alan James"
> > > <MADjames@theknapp.freeserve.co.uk>
> > > >
> > > > Gene,
> > > > Most UK Piets have been built to a slightly modified drawing by Jim
> >Wills
> > > > and approved by our PFA who oversee such things. The main
differences
> > > > include:
> > > > 1. A three piece wing with (optional) auto-aileron connect facility.
> > > > 2. Built-up spars and 'D' box leading edge of 1/16" ply.
> > > > 3. Heavier than original lift struts.
> > > > As a consequence, the max weight has been increased from the
original
> > > 1050lb
> > > > to 1200lb. Stress calculations made at the time suggested that jury
> >struts
> > > > were not necessary and this is how I first flew G-BUCO back in '92.
> > > However,
> > > > it soon became apparent that at certain angles of attack and rpm
> >settings
> > > > the front struts would start vibrating. I first experienced this
over
> >The
> > > > Solent, a stretch of water that separates England from The Isle of
> >Wight.
> > > > This happened on at least 2 of the 5 UK Piets finished at the time
and
> >was
> > > > not good for the nerves! Fixes included setting the strut at an
angle to
> > > the
> > > > slipstream but the PFA decided on a mandatory modification of adding
> >jury
> > > > struts to the front only.
> > > > I hope this clears things up.
> > > > Good luck with your Piet.
> > > > Alan James
> > > >
> > > >
> > > > ----- Original Message -----
> > > > From: <ZigoDan@aol.com>
> > > > To: <pietenpol-list@matronics.com>
> > > > Subject: Re: Pietenpol-List: strut bracing
> > > >
> > > >
> > > > > --> Pietenpol-List message posted by: ZigoDan@aol.com
> > > > >
> > > > > Gene,
> > > > >
> > > > > I have not looked at my plans in a long time. All I am saying is
that
> > > > don't
> > > > > by any means delete something just for convince. Adding parts
like
> >jury
> > > > > struts, better AN hardware is an improvement in my opinion.
Thanks
> >for
> > > > > correcting me on my oversight.
> > > > >
> > > > > Dan
> > > > >
> > > > >
> > > >
> > > >
> > >
> > >
> >
> >
>
>
Message 3
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| Subject: | Re: strut bracing |
--> Pietenpol-List message posted by: "Graham Hansen" <grhans@cable-lynx.net>
Les,
The type of aileron connection Alan is talking about has been used on
gliders/sailplanes where the wings are frequently removed for transport
by trailer. It eliminates the need to disconnect and reconnect the aileron
control each time this is done---and eliminates a lot of possibilities for
error.
I seem to recall seeing this arrangement on a Sonerai aircraft at Oshkosh
many years ago, but am not certain of the a/c type anymore. It is useful
only with folding wings or wings that are to be removed and reattached
frequently. Otherwise, it isn't worthwhile for the reasons Alan has given.
(I've removed the wings of my Pietenpol only twice in 32 years!)
Cheers,
Graham (Pietenpol CF-AUN)
Message 4
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| Subject: | Thanks guys, keep them coming |
--> Pietenpol-List message posted by: "Christian Bobka" <bobka@charter.net>
Guys,
Please keeep the referrals coming...
Chris Bobka
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