Today's Message Index:
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0. 12:12 AM - If You Got This Email, You Haven't Made A Contribution Yet! :-) (Matt Dralle)
1. 09:28 PM - Clarification On New Contribution Module Operation... (Matt Dralle)
2. 02:29 AM - Re: engine mount jig (walt evans)
3. 06:08 AM - Re: Motor mount question (Rick Holland)
4. 09:02 AM - engine mount jig (Oscar Zuniga)
5. 09:30 PM - Re: Motor mount question (Rcaprd@aol.com)
Message 0
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| Subject: | If You Got This Email, You Haven't Made A Contribution |
Yet! :-)
If you received this particular Matronics List Email message, its because you haven't
yet made a Contribution to support your Lists! This is the first PBS-like
funds drive message under the new distribution system. The new system selectively
sends out the Contribution messages ONLY to those that forgot to whip
out the 'ol credit card this year to support the continued operation and upgrade
of the Matronics Email Lists! Don't you wish PBS worked that way? :-)
You heard that right. Once you make your Contribution, these support requests
messages during November will suddenly stop coming to your personal email inbox!
Pardon me if I seem kind of excited about the new feature. I've wanted to
implement something like this for a number of years now, but it was always such
a daunting task to modify the back-end List processing code, that I just kept
putting it off. Finally this year, I just decided to bite the bullet and put
the code-pounding time it to make it work. A few days later, bam! A working
system!
Anyway, I'll stop gushing now. I really do appreciate each and every one of your
individual Contributions to support the Lists. It is your support that enables
me to upgrade the hardware and software that are required to run a List Site
like this. It also goes to pay for the Commercial-Grade Internet connection
and to pay the rather huge electric bill to keep the computer gear running
and the air conditioner powered up.
Your personal Contribution matters because when combined with other Listers such
as yourself, it pays the bills to keep this site up and running. I accept exactly
ZERO advertising dollars for the Matronics Lists sites. I can't stand
the pop-up ads and all other commercialism that is so prevalent on the Internet
these days and I particularly don't want to have it on my Email List site.
I'm pretty sure you don't either.
If you appreciate the ad-free, grass-roots, down-home feel of the Matronics Email
Lists, please make a Contribution today to keep it that way!!
http://www.matronics.com/contribution
Thank you!
Matt Dralle
Matronics Email List Administrator
Message 1
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| Subject: | Clarification On New Contribution Module Operation... |
Dear Listers,
A number of Listers emailed and indicated that, even though they had made a Contribution
this year, they still received the Contribution message yesterday.
I looked into it and I found a slight anomaly (ok, bug) in the new code specifically
as it related to Listers that had made their Contribution through PayPal
AND have a DIFFERENT email address for their PayPal account and for their Matronics
List subscription.
If your PayPal account email address is DIFFERENT than the email address you are
subscribed to the Matronics List(s) as, then my new code module couldn't tell
that you had made a Contribution, since it was using the PayPal email address
instead of the List email.
I've fixed this issue for any new PayPal Contributions, but I don't have any easy
way of resolving this for any of the previous Contribtuions. Again, this is
ONLY an issue if your PayPal and Matronics List email addresses ARE NOT the
same. Otherwise, everything works great.
If you made a PayPal Contribution before 11/09/06 AND your email addresses don't
match, please drop me an email at " info@matronics.com " (do not reply to this
message!) and give me your Name, and both Email Addresses and I will manually
update the records so that things will work as advertised.
Sorry for the hassle! New code; new bugs... :-)
To make a Contribution, please see: http://www.matronics.com/contribution
Thank you!
Matt Dralle
Matronics Email List Administration
Message 2
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| Subject: | Re: engine mount jig |
Ken,
Look at the drawing, the offset is in there
walt evans
NX140DL
"Put your wealth in knowledge, and no one can ever take it from you"
Ben Franklin
----- Original Message -----
From: KMHeide
To: pietenpol-list@matronics.com
Sent: Tuesday, November 07, 2006 10:54 PM
Subject: Re: Pietenpol-List: engine mount jig
Just a thought about the jig....Knowing the Ercoupe and its canted
down and away engine mount to reduce p-factor...has anyone created an
engine mount with this in mind as it works very well in the Ercoupe
design? Do not know of the total amount of downward
canting......Again...just a thought..
Ken H.
Fargo, ND
Oscar Zuniga <taildrags@hotmail.com> wrote:
I forgot to mention how I worked out the jig for the VW engine mount
in my
"Flying Squirrel" (not flying yet though). It was actually very
enjoyable
to build the jig because I knew goofs wouldn't matter much; I could
re-drill
or re-cut anything since it was just for the jig. It was a nice
Saturday
job to build the jig.
I started out with a piece of scrap sheet metal (ductwork) measured
and cut
to the exact shape of the firewall, then mounted it to a piece of
heavy
plywood with some 2x4 back framing. Scrounge hardware mounted the
sheet
metal to the plywood, then I carefully located where the engine
mount points
would be. I had the four "spool" pieces that would form the four
corners of
the mount and I bolted those to the firewall jig with hardware store
bolts.
I mounted this firewall jig to a 2x4 frame that also supported the
engine
with some wood framing, in its desired relationship to the firewall.
I also
put this frame on casters to make it easy to move around, but that's
just
gravy. By the way, pictures of this are the first few at
http://www.flysquirrel.net/engine/engine.html and the pictures will
tell the
whole story.
I took this to my friend Jeff Sterling, who then welded the engine
mount
tubing together and it didn't matter if the plywood or
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Message 3
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| Subject: | Re: Motor mount question |
While we are on the topic of CG range, their seems to be a difference of
opinion on the forward max CG point, everybody seems to agree on the rear at
20" aft of the leading edge or 33%. I can't find a number on the plans for
the forward CG but several posts in the archives mention 15" aft of LE or
25%. Going though the Bengelis books I have seen 16% (which would be 9.5")
as a typical number, and most important in Bill Rewey's Piet guidelines on
CG he mentions that 9.5" is the forward limit.
Question is has anyone actually flow a Piet with the CG anywhere near 9.5"
aft of LE?
Rick
On 11/7/06, Rcaprd@aol.com <Rcaprd@aol.com> wrote:
>
> In a message dated 11/7/2006 9:14:52 AM Central Standard Time,
> davea@symbolicdisplays.com writes:
>
> I am building the "standard" fuselage. I weigh 170 and 6'2 thus I made
> mine a single seater so I have some legroom. People make it sound so
> simple when they talk about "moving the wing back" but I was thinking it
> couldn't be so simple unless they know something I don't. Thank you for
> your explanation! Am I correct in thinking you can just move the engine
> out farther to get the correct CG? (and leave the wing where it is) Of
> course the nose might get to be a bit LOOOOOOOOONG!
>
> Dave,
> Moving the wing back is a unique feature of the Pietenpol, and really
> isn't that difficult to do, but requires a couple of new cables if you
> already had the wing position nailed down. Moving the engine out farther
> forward does the same thing as moving the wing back - as far as the C of G
> is concerned. However, the farther forward the engine is, the more it
> affects the handling of the plane coming out of a slip.
> I built the 'Short' fuselage, now with a Continental A65 engine, and I
> weight 210 lbs. I moved the engine forward a whopping 8" (increased the
> wall thickness of the steel tubes), as well as moved the wing back from
> vertical 3 1/2". It does give the plane a 'Long Nose' look, but with my
> weight there is no way I can get too far aft on the C of G, even with Zero
> Fuel the C of G is just at the aft limit. Us 'fat boys' just gotta do what
> we gotta do !! With the rudder authority of the Piet, I have no
> problem coming out of a slip. You can see lots of pictures of my plane on
> my web site, as well as the entire C of G calculations under the 'Operations
> Manual' page.
> http://nx770cg.com/
>
> Chuck G.
> NX770CG
>
> *
>
>
> *
>
>
--
Rick Holland
"Logic is a wreath of pretty flowers, that smell bad"
Message 4
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| Subject: | engine mount jig |
Yes, the A65 engine mount in 41CC is built per the Pietenpol plans with a
bit of offset. If you have the supplemental engine mount drawing from
Pietenpol, you'll note slight offset for it.
Oscar Zuniga
San Antonio, TX
mailto: taildrags@hotmail.com
website at http://www.flysquirrel.net
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Message 5
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| Subject: | Re: Motor mount question |
In a message dated 11/8/2006 8:10:20 AM Central Standard Time,
at7000ft@gmail.com writes:
Question is has anyone actually flow a Piet with the CG anywhere near 9.5"
aft of LE?
Rick,
Bernard called out to maintain the C of G between 1/4 to 1/3 of the airfoil,
which amounts to between 15" and 20" behind the Leading Edge. I seriously
doubt that anyone anywhere in history of the Pietenpol has been able to have
flown the plane with the CG that far forward.
Chuck G.
NX770CG
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