Today's Message Index:
----------------------
1. 12:37 AM - Re: Gardiner's Corvair issue, or how not to cool the Corvair in your Pietenpol (Peter W Johnson)
2. 05:02 AM - Re: Weight. (helspersew@aol.com)
3. 07:44 AM - Re: Pilot CG was Weight. (hpvs@southwind.net)
4. 08:44 AM - Clamps (bcolleran)
5. 09:00 AM - Re: Clamps (Tim Willis)
6. 11:35 AM - Re: Clamps (Michael Silvius)
7. 01:02 PM - Re: Gardiner's Corvair issue, or how not to cool the Corvair in (coxwelljon)
8. 02:24 PM - Re: Pilot CG was Weight. (Bill Church)
9. 07:22 PM - seaching matronics archives [was: Re: Re: Weight.] (Dan Yocum)
10. 07:29 PM - Re: Re: Ethanol in Mogas-- more coming (Dortch, Steven D MAJ NG NG NGB)
11. 07:48 PM - Re: Gardiner's Corvair issue, or how not to cool the Corvair in your Pietenpol (Rick Holland)
Message 1
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| Subject: | Gardiner's Corvair issue, or how not to cool the Corvair |
in your Pietenpol
Rick,
Check out http://www.cpc-world.com/new_card_images/images/IMG_0522_JPG.jpg.
That's how I did mine and it all worked out OK. I have a section on Corvair
cooling under "Engine Construction" on the web site.
Cheers
Peter
Wonthaggi Australia
http://www.cpc-world.com
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Rick Holland
Sent: Sunday, 9 May 2010 12:07 PM
Subject: Re: Pietenpol-List: Gardiner's Corvair issue, or how not to cool
the Corvair in your Pietenpol
Interesting writeup from WW, one thing mentioned that I do not have is an
air passage between the left and right eyebrow baffles, has anyone seen this
on a Corvair/Piet installation? Shouldn't be too hard to add a 2 1/2" Scat
hose between my eyebrows.
rick
On Sat, May 8, 2010 at 6:58 AM, Ryan Mueller <rmueller23@gmail.com> wrote:
I'm sure many recall the posts Gardiner made to the list recently about the
unfortunate problems he encountered with the Corvair engine he has installed
in his Pietenpol. There was the suggestion on his part that it may have been
due to subpar workmanship during assembly of the engine, which was assembled
by one of William Wynne's former hangar crew. Gardiner took the engine down
to William Wynne, and a partial teardown and analysis of the engine revealed
that it had been suffering from a combination of sketchy timing and
inadequate cooling, leading to severe detonation. The timing issue stemmed
from having an equally sketchy individual (not related to William or one of
his associates) make modifications to the distributor, and the cooling issue
stemmed from a number of flaws in Gardiner's particular cooling
configuration. William has put a detailed post on his site explaining
exactly what happened, and how to avoid these issues:
http://flycorvair.com/pietengineissue.html
I highly recommend giving it a read if you are at all interested in using a
Corvair, or if you are already committed to using one. Plenty of good
information.
Gardiner,
We wish you the best with getting the 'Vair back together and back on your
Piet. We hope you can get all the kinks sorted out and are able to fly her
to Brodhead this year! We'll be there with our new Piet, and we look forward
to seeing yours. Have a nice weekend,
Ryan
" target="_blank">http://www.matronics.com/Navigator?Pietenpol-List
tp://forums.matronics.com
_blank">http://www.matronics.com/contribution
--
Rick Holland
Castle Rock, Colorado
"Logic is a wreath of pretty flowers, that smell bad"
Message 2
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Hi Raymond,
What I did was to cut a piece of plywood, sit down on it with a pipe under
neath so that I could roll back and forth on the pipe to find the balance
point. When you sit down make sure your outstretched legs are the same as
when each person (front or back) is seated. You can get both seat locatio
ns CG easily this way and it will be very accurate.
Dan Helsper
Poplar Grove, IL.
-----Original Message-----
From: skellytown flyer <skellflyer1@yahoo.com>
Sent: Sat, May 8, 2010 6:40 pm
Subject: Pietenpol-List: Weight.
o.com>
can anybody give me a pretty good guess as to where the center of gravity
for
he pilot or passenger is supposed to be in relation to the seat back? I'm
orking to get the W&B figured out on the project I bought from D.J. and th
e
uselage has been stretched quite a bit.I just don't know whether to use
omething like 4 or 5 inches ahead of the bottom of the seat back as the
istance for pilot or passenger weight calculations or what. hope someone
can
nlighten me here. Raymond
ead this topic online here:
http://forums.matronics.com/viewtopic.php?p=297140#297140
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| Subject: | Re: Pilot CG was Weight. |
Hey Raymond,
The "best guess" I've used is to figure that your belly button is your seated CG
-- i.e. about 10" forward of the seat back and about 10" above the seat bottom
(I've used this to figure the CG on recumbent bikes, etc.) -- this may vary
in real life depending on the the seat back angle and if you are flying in combat
boots or flip-flops! ;-)
"just another" Mike C.
Pretty Prairie, KS
-----Original Message-----
>From: skellytown flyer <skellflyer1@yahoo.com>
>Sent: May 8, 2010 7:40 PM
>To: pietenpol-list@matronics.com
>Subject: Pietenpol-List: Weight.
>
>
>can anybody give me a pretty good guess as to where the center of gravity for
the pilot or passenger is supposed to be in relation to the seat back? I'm working
to get the W&B figured out on the project I bought from D.J. and the fuselage
has been stretched quite a bit.I just don't know whether to use something
like 4 or 5 inches ahead of the bottom of the seat back as the distance for pilot
or passenger weight calculations or what. hope someone can enlighten me here.
Raymond
>
>
>Read this topic online here:
>
>http://forums.matronics.com/viewtopic.php?p=297140#297140
>
>
Message 4
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So I have seen some folks using a circular clamp lately. Is it just a piece of
black pvc with a line cut in it? I saw some on cliff dawsons page and it sounds
like that is all he used. Any input would be great.
Bill Colleran
N424BK
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=297181#297181
Message 5
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Either Clif or one of our other "really scratch builders" posted the method
of making such clamps a couple of years ago. You might find it in the archives.
However, the same general technique is covered in the current edition (May
2010)of our EAA national magazine-- "Sport Aviation"-- pp. 82-83. The author
describes the technique of using 2.5 inch diameter PVC pipe for his material.
This is not a common dimension-- I thought they came in 2 inch, 3 inch, etc.
Maybe 3 inch schedule 80 pipe has a 2.5 inch I.D.?
Our own builder used wooden dowels as the handles. The article uses 1/4" steel
rods, bent to form more of a "handle."
Tim in central TX
-----Original Message-----
>From: bcolleran <bcolleran@comcast.net>
>Sent: May 9, 2010 10:44 AM
>To: pietenpol-list@matronics.com
>Subject: Pietenpol-List: Clamps
>
>
>So I have seen some folks using a circular clamp lately. Is it just a piece of
black pvc with a line cut in it? I saw some on cliff dawsons page and it sounds
like that is all he used. Any input would be great.
>
>Bill Colleran
>N424BK
>
>
>Read this topic online here:
>
>http://forums.matronics.com/viewtopic.php?p=297181#297181
>
>
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http://www.sportaviationonline.org/sportaviation/201005#pg84
----- Original Message -----
From: "bcolleran" <bcolleran@comcast.net>
>
> So I have seen some folks using a circular clamp lately. Is it just a
piece of black pvc with a line cut in it? I saw some on cliff dawsons page
and it sounds like that is all he used. Any input would be great.
>
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| Subject: | Re: Gardiner's Corvair issue, or how not to cool the Corvair |
in
William Wynn has put a detailed post on his site explaining exactly what happened,
and how to avoid these issues:
http://flycorvair.com/pietengineissue.html (http://flycorvair.com/pietengineissue.html)
I highly recommend giving it a read if you are at all interested in using a Corvair,
or if you are already committed to using one. Plenty of good information.
Ryan
>
>
>
> [b]
Ryan, thank you for posting the link. I will be using a Corvair and the recent
information about Gardiner's problem is excellent.
Jon Coxwell
--------
Jon Coxwell
GN-1 Builder
Recycle and preserve the planet
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=297194#297194
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| Subject: | Re: Pilot CG was Weight. |
Just a casual observation of the attendees at Brodhead, but I think that more than
a few Piet builders bellybuttons might be a little more than 10" ahead of
the seat back.
I'm just sayin'...
do not archive
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=297197#297197
Message 9
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Ryan's instructions are clear but the matronics search interface is
somewhat cumbersome (no offence, Matt).
There's another, easier way to search the archives using google. Simply
add the following sting to any search you want perform specifically on
the matronics pietenpol list:
site:matronics.com pietenpol
So, to search specifically for "landing gear," search like this:
site:matronics.com pietenpol "landing gear"
For a searches about Lambert or Warner engines:
site:matronics.com pietenpol lambert OR warner
For search about A65 engines but you don't want to hear what that yocum
guy has to say, do this:
site:matronics.com pietenpol A65 -yocum
Hope this helps,
Dan
On 05/08/2010 09:02 PM, Ryan Mueller wrote:
> Raymond,
>
> Searching the archives isn't too difficult. First off, you have to get
> there. You can find it at:
>
> http://www.matronics.com/search/
>
> The first step is to use the 'Select Archive' dropdown to choose Pietenpol.
>
> I would leave 'Message Order' at Newest First.
>
> I like to set 'Output Method' at 3 frame Index.
>
> Then you arrive at entering your search. There are instructions on the
> site. To boil them down:
>
> If you want to search for one word, just type the word and click Begin
> Search. For example, if I want to find all posts that talk about
> Stromberg carbs, I'll search for 'stromberg' (minus the quotes).
> If I want to search for a phrase, I can just enter the words. Maybe I
> want to see what was posted about how to build landing gear. I can enter
> 'landing gear', and it will find every post that contains the word
> 'landing' that is followed immediately by the word 'gear'.
> Maybe I want to find out about how elevator travel might relate to
> throttle usage. Well, odds are I won't find a two or three word phrase
> containing those words right next to each other that is common to many
> posts. In this case I can search for 'elevator & throttle & travel'.
> This will show me any posts that contain those three words, whether they
> are next to each other or not.
> Maybe you decide you want to see if there is any information about
> Pietenpols with Warner engines, or with Lambert engines. There may be
> posts on the list about one, or the other, but not both. To find them
> you can do a search for 'warner | lambert. The | character, which you
> can enter by hitting Shift plus the |\ key, means or. So you are
> searching for posts that contain the words 'Warner' or 'Lambert', but
> not both.
>
> If you need any more help with searching in the archives please feel
> free to shoot me an email. I can talk you through it on the phone if you
> are more comfortable with that, just let me know. Good luck!
>
> Ryan
>
>
> On Sat, May 8, 2010 at 8:03 PM, skellytown flyer <skellflyer1@yahoo.com
> <mailto:skellflyer1@yahoo.com>> wrote:
>
> <skellflyer1@yahoo.com <mailto:skellflyer1@yahoo.com>>
>
> Tom that is good to know.I have never figured out how to search the
> archives. maybe that's the reason I come up with questions that have
> been covered so often.if you would not mind visiting off list about
> it I'd be glad to pick your brain. but what I am trying to use is a
> calculator that is available on the Kansas city Dawn patrol
> website.I have the distances measured on my airplane using the
> firewall as a datum.as <http://datum.as> well as empty weights at
> the wheels and everything level.if I could just get a good
> centerline for pilot weight.I seem to remember reading once it would
> be at about a person's hip bone when sitting. that probably depends
> on the reclining angle.and whether it is a normal person or someone
> like me with long legs.but the figures I am coming up with sure
> don't look usable.
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=297144#297144
>
>
> ==========
> st" target="_blank">http://www.matronics.com/Navigator?Pietenpol-List
> ==========
> http://forums.matronics.com
> ==========
> le, List Admin.
> ="_blank">http://www.matronics.com/contribution
> ==========
>
>
> *
>
>
> *
--
Dan Yocum
Fermilab 630.840.6509
yocum@fnal.gov, http://fermigrid.fnal.gov
"I fly because it releases my mind from the tyranny of petty things."
Message 10
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| Subject: | Re: Ethanol in Mogas-- more coming |
Everything Around Austin is 10% liquor as well.
NW Oklahoma has all sorts of signs that say "No Ethanol in our Gas" and this is
in the middle of Farm country!
Blue Skies,
Steve D
----- Original Message -----
From: coxwelljon <coxwelljon@frontiernet.net>
Subject: Pietenpol-List: Re: Ethanol in Mogas-- more coming
>
> All stations in central NY are 10% ethanol. Traveled in SW Colorado last week
and all the stations I saw there were also 10%.
>
> --------
> Jon Coxwell
> GN-1 Builder
> Recycle and preserve the planet
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=297097#297097
>
>
>
>
>
>
>
>
>
>
Message 11
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| Subject: | Re: Gardiner's Corvair issue, or how not to cool the |
Corvair in your Pietenpol
Beautiful sheet metal work Peter, interesting that not even an external oil
cooler solved your problems until you stuck it out in the airstream. My 12
plate cooler keeps my oil temps in range on the test stand so far but I kno
w
that means nothing until its in the air.
rick
On Sun, May 9, 2010 at 1:35 AM, Peter W Johnson <vk3eka@bigpond.net.au> wro
> Rick,
>
>
> Check out http://www.cpc-world.com/new_card_images/images/IMG_0522_JPG.jp
g
> .
>
>
> That=92s how I did mine and it all worked out OK. I have a section on Cor
vair
> cooling under =93Engine Construction=94 on the web site.
>
>
> Cheers
>
>
> Peter
>
> Wonthaggi Australia
>
> http://www.cpc-world.com
>
>
> *From:* owner-pietenpol-list-server@matronics.com [mailto:
> owner-pietenpol-list-server@matronics.com] *On Behalf Of *Rick Holland
> *Sent:* Sunday, 9 May 2010 12:07 PM
> *To:* pietenpol-list@matronics.com
> *Subject:* Re: Pietenpol-List: Gardiner's Corvair issue, or how not to
> cool the Corvair in your Pietenpol
>
>
> Interesting writeup from WW, one thing mentioned that I do not have is an
> air passage between the left and right eyebrow baffles, has anyone seen t
his
> on a Corvair/Piet installation? Shouldn't be too hard to add a 2 1/2" Sca
t
> hose between my eyebrows.
>
> rick
>
> On Sat, May 8, 2010 at 6:58 AM, Ryan Mueller <rmueller23@gmail.com> wrote
:
>
> I'm sure many recall the posts Gardiner made to the list recently about t
he
> unfortunate problems he encountered with the Corvair engine he has instal
led
> in his Pietenpol. There was the suggestion on his part that it may have b
een
> due to subpar workmanship during assembly of the engine, which was assemb
led
> by one of William Wynne's former hangar crew. Gardiner took the engine do
wn
> to William Wynne, and a partial teardown and analysis of the engine revea
led
> that it had been suffering from a combination of sketchy timing and
> inadequate cooling, leading to severe detonation. The timing issue stemme
d
> from having an equally sketchy individual (not related to William or one
of
> his associates) make modifications to the distributor, and the cooling is
sue
> stemmed from a number of flaws in Gardiner's particular cooling
> configuration. William has put a detailed post on his site explaining
> exactly what happened, and how to avoid these issues:
>
> http://flycorvair.com/pietengineissue.html
>
> I highly recommend giving it a read if you are at all interested in using
a
> Corvair, or if you are already committed to using one. Plenty of good
> information.
>
> Gardiner,
>
> We wish you the best with getting the 'Vair back together and back on you
r
> Piet. We hope you can get all the kinks sorted out and are able to fly he
r
> to Brodhead this year! We'll be there with our new Piet, and we look forw
ard
> to seeing yours. Have a nice weekend,
>
> Ryan
>
>
> * *
>
> * *
>
> *" target="_blank">http://www.matronics.com/Navigator?Pietenpol-List*
>
> *tp://forums.matronics.com*
>
> *_blank">http://www.matronics.com/contribution*
>
> * *
>
>
> --
> Rick Holland
> Castle Rock, Colorado
>
> "Logic is a wreath of pretty flowers, that smell bad"
>
> * *
>
> * *
>
> **
>
> **
>
> **
>
> **
>
> **
>
> **
>
> *http://www.matronics.com/Navigator?Pietenpol-List*
>
> **
>
> **
>
> **
>
> *http://forums.matronics.com*
>
> **
>
> **
>
> **
>
> **
>
> *http://www.matronics.com/contribution*
>
> **
>
> * *
>
> *
>
===========
===========
===========
===========
> *
>
>
--
Rick Holland
Castle Rock, Colorado
"Logic is a wreath of pretty flowers, that smell bad"
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