Today's Message Index:
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1. 05:19 AM - Center Section Cover (C N Campbell)
2. 05:33 AM - Kyle's center section cargo area cover (Cuy, Michael D. (GRC-RXD0)[ASRC AEROSPACE CORP])
3. 07:28 AM - Re: Kyle's center section cargo area cover (C N Campbell)
4. 07:50 AM - Re: center section storage lid hinge-to-front spar (C N Campbell)
5. 07:53 AM - Re: Kyle's center section cargo area cover (Kyle85)
6. 09:36 AM - Sun and Fun (j_dunavin)
7. 10:10 AM - Aluminum thickness: Kyle's center section cargo area cover (Cuy, Michael D. (GRC-RXD0)[ASRC AEROSPACE CORP])
8. 01:33 PM - Re: Kyle's center section cargo area cover (Bill Church)
9. 03:58 PM - Re: center section storage lid hinge-to-front spar (Kyle85)
10. 05:49 PM - Re: Bendix magneto starting issues (dgaldrich)
11. 05:52 PM - Re: Sun and Fun (dgaldrich)
12. 06:13 PM - Re: Re: center section storage lid hinge-to-front spar (C N Campbell)
Message 1
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| Subject: | Center Section Cover |
This week, someone sent an E-mail on the list about his cover for his
center-section storage compartment. I also am in the process of
building my center-section and want to build a similar cover. I
mistakenly deleted the E-mail rather than saving it. Will the kind
person re-send the E-mail with the pictures of his cover -- you might
send a couple more pictures if you can. I need all the help I can get.
Thanks a bunch, Chuck
Message 2
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| Subject: | Kyle's center section cargo area cover |
Very nicely fabricated Kyle. It appears as though your workmanship is real
ly
top notch. I'm very impressed at how the standard of Pietenpol craftsmansh
ip
has continually gotten better over the past ten years or so. Outstanding w
ork
going on out there in little shops, garages, and basements around this land
and far off lands.
Beauuutiful work.
Mike C.
Message 3
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| Subject: | Re: Kyle's center section cargo area cover |
Michael, thanks for the reply. I was going to ask Kyle but I'll ask you
instead, what thickness aluminum sheet did you use? I was thinkiing of
ordering enough to do both the cover and the cowling around my Corvair
engine as well as the cowls on the fuselage. I have Hans Van DerVoort's
drawings for his engine cowl, but he doesn't stipulate the thickness of
the material. Chuck
----- Original Message -----
From: Cuy, Michael D. (GRC-RXD0)[ASRC AEROSPACE CORP]
To: pietenpol-list@matronics.com
Sent: Friday, March 09, 2012 8:32 AM
Subject: Pietenpol-List: Kyle's center section cargo area cover
Very nicely fabricated Kyle. It appears as though your workmanship is
really
top notch. I'm very impressed at how the standard of Pietenpol
craftsmanship
has continually gotten better over the past ten years or so.
Outstanding work
going on out there in little shops, garages, and basements around this
land
and far off lands.
Beauuutiful work.
Mike C.
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Message 4
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| Subject: | Re: center section storage lid hinge-to-front spar |
Michael, Chuck again. I just went to your pictures on the west coast
web site and saved a bunch of your pictures for future reference. You
might just expect a bunch of questions later on. C
----- Original Message -----
From: Cuy, Michael D. (GRC-RXD0)[ASRC AEROSPACE CORP]
To: pietenpol-list@matronics.com
Sent: Monday, March 05, 2012 1:11 PM
Subject: Pietenpol-List: center section storage lid hinge-to-front
spar
Kyle,
I just drilled a few pilot holes for some truss-head wood screws to
attach my
hinged cover for the center section storage compartment. The other
1/2 of my
hinge is riveted to the aluminum cover.
Mike C.
for more photos please see:
http://www.westcoastpiet.com/images/Mike%20Cuy%20A-65%20Piet/mike_cuy_2.h
tm
(Thank you Chris Tracy!!!!)
Message 5
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| Subject: | Re: Kyle's center section cargo area cover |
Chuck, I used 2024 T3 .032 throughout my lid. It worked nicely for me.
Kyle
--------
Airspeed, altitude or brains: Two are always needed to successfully complete the
flight.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=368062#368062
Message 6
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I'm going to be down here in Lakeland for a work contract, but will be at the show.
Is there anyone coming down here, that I may be able to get together with.
I would like to take some pictures, ask questions, and maybe get a ride.
Thanks guys!
J_Dunavin@hotmail.com
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=368067#368067
Message 7
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| Subject: | Aluminum thickness: Kyle's center section cargo area |
cover
Chuck- I used .025" 2024T3 for everything sheet aluminum wise
on my Pietenpol including the center section cargo cover lid.
Mike C.
Message 8
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| Subject: | Re: Kyle's center section cargo area cover |
Chuck,
Hans' drawing actually does specify the thickness (.025), just above the Bill of
Materials chart.
http://mykitplane.com/Planes/PeoplesFiles/Cowling%20drawing.pdf
Bill C.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=368076#368076
Message 9
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| Subject: | Re: center section storage lid hinge-to-front spar |
Chuck,
Here is a picture of my trial fit. Still need to figure out a way to mount the
piano hinge to my front spar in order for my piano hinge to mount flush with the
"skin" I may need to bond a strip of wood to the top of my spar to take up
the gap and then mount to that. My method of attaching will still be truss screws.
Kyle
--------
Airspeed, altitude or brains: Two are always needed to successfully complete the
flight.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=368081#368081
Attachments:
http://forums.matronics.com//files/img_0448_640x478_965.jpg
Message 10
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| Subject: | Re: Bendix magneto starting issues |
Jim:
Think about this from a theory point of view. When the points CLOSE, the C is
out of the picture -- it's shorted out -- so you have an RL circuit. As the field
builds up, the current goes from 0 toward a steady state that is determined
solely by the R in the circuit. That R is a function of the ballast resistor
and the internal resistance of the coil. The RL time constant determines the
shape of the first part of the curve I drew.
Side note: Notice that the faster the engine runs, the earlier on that curve the
points open. That means less energy stored in the coil to produce a spark.
As a conventional system speeds up, the spark actually becomes weaker. Not
so with magnetos. The faster the magneto turns (up to a point) the more energy
is available. The faster a wire moves through a magnetic field, the more induced
voltage. The slower the movement, the less voltage. That's why magnetos
can sometimes be hard to start and why impulse couplings were developed. The
impulse coupling accelerates the magnets through the windings in a ratchet kind
of motion.
Now the points open. You have a series RLC circuit with a DC supply voltage.
That is a circuit that cannot resonate and is what is called a band pass filter.
Only frequencies in a range around the square root of 2*Pi*L*C if memory serves,
will get through. DC will not.
The graph I drew is actually incorrect. The current in the low voltage/primary
winding actually drops to zero almost immediately. The energy stored in the
magnetic field of both coil windings has only one way to dissipate and that's
through the high voltage/secondary side via the spark plug which has much less
effective resistance than the primary side.
What you may have read about is some of the solid state systems may have a resonant
circuit used to charge a capacitor in a system commonly known as a CDI for
Capacitor Discharge Ignition. There is no such thing as a DC transformer so
in order to get a higher than 14 v supply, the system either uses a resonant
circuit or chops dc in very short on/off pulses. These look like AC to a transformer
and by proper selection of windings, you can get almost any AC voltage
you want. Rectify it and - voila - high(er) voltage DC. That's the principle
the 110 v adapters you plug in your cigarette lighter work on.
This is probably one of those cases of "ask me what time it is and I'll tell you
how to build a watch".
Hope this helps.
Dave
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=368085#368085
Message 11
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The core wood shop guys (Dick Navrotil, Skip Gadd, PF Beck, and so on) are Pietenpol
builders/owners. Stop over and say hi.
Dave Aldrich
do not archive
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=368086#368086
Message 12
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| Subject: | Re: center section storage lid hinge-to-front spar |
Yeah, Kyle, that's what I did to make everything line up. I just cut a
piece approximately the shape I needed, glued it on, and then shaped it with
a block plane so that everything lines up. Your pic looks great. I was
originally planning to cover just the area between the main spars. I'm
about to run it on back to where the aileron spar goes -- like Mike and,
apparently, you did. I also liked Mike's design of the little compartment
where he can get to the aileron cables and pulleys. Thanks for your help.
Chuck
----- Original Message -----
From: "Kyle85" <boschkyle@hotmail.com>
Sent: Friday, March 09, 2012 6:57 PM
Subject: Pietenpol-List: Re: center section storage lid hinge-to-front spar
>
> Chuck,
> Here is a picture of my trial fit. Still need to figure out a way to mount
> the piano hinge to my front spar in order for my piano hinge to mount
> flush with the "skin" I may need to bond a strip of wood to the top of my
> spar to take up the gap and then mount to that. My method of attaching
> will still be truss screws.
> Kyle
>
> --------
> Airspeed, altitude or brains: Two are always needed to successfully
> complete the flight.
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=368081#368081
>
>
> Attachments:
>
> http://forums.matronics.com//files/img_0448_640x478_965.jpg
>
>
>
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