Today's Message Index:
----------------------
1. 03:42 AM - unequal weights (Douwe Blumberg)
2. 04:37 AM - Re: coaming and sharp edges (womenfly2)
3. 07:14 AM - round tube wing struts (giacummo)
4. 08:03 AM - Re: First Post (V Groah)
5. 08:12 AM - Re: First Post (AircamperN11MS)
6. 08:47 AM - Re: round tube wing struts (bdewenter)
7. 10:31 AM - a neat idea from John Egan (Cuy, Michael D. (GRC-RXD0)[Vantage Partners, LLC])
8. 11:39 AM - Re: First Post (taildrags)
9. 02:48 PM - Re: round tube wing struts (Bill Church)
10. 05:32 PM - Re: Re: round tube wing struts (Mario Giacummo)
11. 05:39 PM - New Engine to replace Corvair (John Francis)
12. 05:47 PM - Re: New Engine to replace Corvair (Jack)
13. 06:34 PM - Re: Re: First Post (David)
14. 07:39 PM - Re: New Engine to replace Corvair (Ken Bickers)
15. 08:23 PM - Re: Re: First Post (Michael Groah)
16. 09:08 PM - Re: Re: First Post (Gary Boothe)
Message 1
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I've also noticed my plane weighs unequally fore and aft. the tail is
heavier than the nose
Message 2
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Subject: | Re: coaming and sharp edges |
At a high velocity impact any hard object (your head) impacting a very narrow edge
with very low surface area will make that edge cut through plastic , rubber
or any soft material.
The best thing to do is to gave that edge more surface area like hemming it (folding
it back on itself) or cover the edge with an small diameter aluminum tube
to increase the surface area. A material it will not cut through. This will
allow the material in back of the edge to act as a crumble zone an absorb the
energy.
The padding over it will help too. Best to sit in your plane belted in and see
were the danger areas are by moving your body as if your were in a crash. Then
you will have a good idea of what areas your head and body may contact thus adding
some protection there.
Just my thoughts ~ WF2
--------
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=408780#408780
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Subject: | round tube wing struts |
Hello folks, to vary a question about the subject.
I am going to use round tubes for the wing struts, of course I search and read
everything I can, the replace option for the streaming ones used in the Piet are
round tube with OD = 1 3/4" and 1.2 mm wall thikness (I do not remember where
I found this). now the question is other, I was looking the photo attached
here and I plan to do something like that, but something is not very clear, as
I see in the strut is an .. aluminium? block, and a bolt holding it.. just one
bolt?. .. of what diameter? A4 or A5?... the other question is how long is the
inside piece? is this piece threaded?.. and the diameter of the D2 bolt ? (i
do not know how to name it)..
Thank you in advance
--------
Mario Giacummo
Photos here: http://goo.gl/wh7M4
Little Blog : http://vgmk1.blogspot.com
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=408783#408783
Attachments:
http://forums.matronics.com//files/lower_strut_fork_end_002_108_693.jpg
Message 4
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Dave=2C
There is a nice group of west coast Piet folks=2C most current builders=2C
a great support group. There is an annual gathering and fly in at Frazier
lake air park the first saturday in June each year. a great place to get in
formation and fellowship. Welcome to the group=2C looking forward to your
participation.
Vic
Tulare Ca NX414MV
From: catdesigns@att.net
Subject: RE: Pietenpol-List: First Post
Awesome! Another California Pietenpol builder.
Chris
Sacramento=2C Ca
Westcoastpiet.com
From: owner-pietenpol-list-server@matronics.com [mailto:owner-pietenpol-lis
t-server@matronics.com] On Behalf Of David
Sent: Tuesday=2C September 17=2C 2013 11:15 AM
Subject: Pietenpol-List: First Post
Hi All=2C
I am new to the list and just want to say Hi!
I received my plans from Andrew yesterday and am getting as much info as po
ssible.
One thing I did notice was that the balance info on the plans indicates one
side is heavier than the other. I don=92t recall which side and by how muc
h=2C but I thought it interesting in light of the thread on this topic.
Anyway=2C enough for now.
Kind Regards=2C
Dave Thursby
(Simi Valley=2C CA)
href="http://www.matronics.com/Navigator?Pietenpol-List">http://www.matro
nics.com/Navigator?Pietenpol-List
href="http://forums.matronics.com">http://forums.matronics.com
href="http://www.matronics.com/contribution">http://www.matronics.com/c
Message 5
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Welcome Dave,
I have a piet in Lancaster and there are a few others near by. You are welcome
to come up and see mine anytime you wish. There is a lot of knowledge within
this group.
My wife grew up in Simi and went to Royal High. In fact she is going down today
to visit with her mother.
Welcome aboard and enjoy the flight,
--------
Scott Liefeld
Flying N11MS since March 1972
Steel Tube
C-85-12
Wire Wheels
Brodhead in 1996
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=408785#408785
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Subject: | Re: round tube wing struts |
Mario,
I hope this helps. You might have to fix the links if they were broken onto multiple
lines.
I beleive what you are looking at is from Don Helsper. D2 is a J-3 cub WING STRUT
ADJUSTMENT FORK
FAA/PMA'd. J-3 & PA-11. Replacement for 13770-00. Includes bolt, nut, cotter pin
& jam nut. Measures 5/16" bolt hole. Measures 7/16" x 20 thread NF3.
It can be seen here
http://www.aircraftspruce.com/catalog/appages/strutadjfbsets1.php?clickkey=394462
The insert in the aluminum strut is a part from McMaster carr. It is either 7075
or 6061 aluminum stock that is flat on each side
This next paragraph is a post on this forum from dan Helsper and explains the insert.
quote...
Larry Williams has been flying his airplane with the aluminum Skytech struts for
years now. These are the same ones I put on my airplane. Advantage is less weight.
If you don't want to attempt welding these (which I didn't) you have to
insert and attach the end fittings with AN bolts. I used 7075 aluminum rectangular
bar stock for the end fittings McMaster Carr Supply # 9055K13 $48.38 for
3 lineal feet. Worked great.
Dan Helsper
Poplar Grove, IL.
--------
Bob 'Early Builder' Dewenter
Dayton OH
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=408786#408786
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Subject: | a neat idea from John Egan |
I had the pleasure of catching up with Pietenpol builder John Egan during t
he Piet fly-in at Brodhead and he's not
only making good progress in his shop but passing along good ideas like thi
s one by submitting them to Sport Aviation
where this one appeared in the August, 2013 issue. My Uncle Tony Bingeli
s would be proud John........
Mike C. in Ohio
[cid:image001.png@01CEB473.56F88790]
Message 8
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Vic-
For the West Coast fly-in, the first Saturday in June 2014 is the 7th. Is that
the correct date for Frazier Lake? I want to make it next year for sure. It's
about 430 miles for me and Scout... a long day, probably 3 intermediate fuel
stops and 4 hops that I'll make on Friday the 6th so as to have the full day
there on Saturday. If I get hung up in weather, I may need to make it part-way
on Friday and then arrive sometime mid-morning on Saturday.
--------
Oscar Zuniga
Medford, OR
Air Camper NX41CC "Scout"
A75 power
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=408793#408793
Message 9
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Subject: | Re: round tube wing struts |
Mario,
I assume you are talking about using chro-moly steel (4130) round tube, and not aluminum tube. The streamline tubing in the photo is an extruded aluminum shape. It is not recommended to weld aluminum that is to be used as a structural member, as it can significantly weaken the metal in the weld zone. That is the reason why there is an aluminum block inside, secured with bolts. When using steel, you have the advantage of being able to weld without compromising the strength of the tube. For the inner threaded part, you can purchase wing strut barrels http://www.aircraftspruce.com/catalog/appages/strutadjfbsets3.php?clickkey=3621
(Aircraft Spruce part no 05-05900), which can be welded into the ends of your steel
tube struts.
One point to consider, when using round tubes for your struts is that they will
create a lot of drag. Round struts really are not aerodynamically "clean".
You should give serious thought about adding some kind of fairings to streamline
the tubes.
Hope that helps.
Bill C.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=408807#408807
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Subject: | Re: round tube wing struts |
Bill, thank you for your response, I know about the drag, so I am going to
do this http://vgmk1.blogspot.com/search?q=aerodinamisacion
and of course, steel tube, I do not know what by the moment, I do not want
to repeat things about availability of anything here. anything in its
moment.
Thank you very much, regards.
Mario Giacummo
2013/9/18 Bill Church <billspiet@sympatico.ca>
> billspiet@sympatico.ca>
>
> Mario,
> I assume you are talking about using chro-moly steel (4130) round tube,
> and not aluminum tube. The streamline tubing in the photo is an extruded
> aluminum shape. It is not recommended to weld aluminum that is to be used
> as a structural member, as it can significantly weaken the metal in the
> weld zone. That is the reason why there is an aluminum block inside,
> secured with bolts. When using steel, you have the advantage of being able
> to weld without compromising the strength of the tube. For the inner
> threaded part, you can purchase wing strut barrels
> http://www.aircraftspruce.com/catalog/appages/strutadjfbsets3.php?clickkey=3621
> (Aircraft Spruce part no 05-05900), which can be welded into the ends of
> your steel tube struts.
> One point to consider, when using round tubes for your struts is that they
> will create a lot of drag. Round struts really are not aerodynamically
> "clean". You should give serious thought about adding some kind of
> fairings to streamline the tubes.
> Hope that helps.
> Bill C.
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=408807#408807
>
>
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Subject: | New Engine to replace Corvair |
My new engine showed up today to replace the Corvair I was originally going to
install.
--------
John Francis
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=408819#408819
Attachments:
http://forums.matronics.com//files/image_1135018178_353.jpg
Message 12
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Subject: | Re: New Engine to replace Corvair |
That should help your CG problem!
Sent from my iPad
Jack Textor
On Sep 18, 2013, at 7:39 PM, "John Francis" <Mrkringles@msn.com> wrote:
>
> My new engine showed up today to replace the Corvair I was originally going to
install.
>
> --------
> John Francis
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=408819#408819
>
>
>
>
> Attachments:
>
> http://forums.matronics.com//files/image_1135018178_353.jpg
>
>
>
>
>
>
>
Message 13
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|
Thanks everyone for the kind welcome.
We will be sure to check out the gathering in June next year.
I am working on the Bingelis books on eBay, and have been trying to acquire
a Corvair engine. This will be a long term project for the kids and I
(there's 5 of them) and we are also building a 1/5 scale RC model as well.
One initial question about wood - I have read that Douglas Fir can be used
as an alternative to Spruce. Is this a reasonable assumption? If so, can
someone point me towards a suitable source, preferably on the West Coast?
To foster some enthusiasm with the kids I'd like to get a few wing ribs done
- even if they end up on the wall as decoration - and I'm prepared to use
the construction of these as a learning and bonding experience (pun
intended).
Thanks again, Dave
-----Original Message-----
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of
AircamperN11MS
Sent: Wednesday, September 18, 2013 8:13 AM
Subject: Pietenpol-List: Re: First Post
<Scott.liefeld@lacity.org>
Welcome Dave,
I have a piet in Lancaster and there are a few others near by. You are
welcome to come up and see mine anytime you wish. There is a lot of
knowledge within this group.
My wife grew up in Simi and went to Royal High. In fact she is going down
today to visit with her mother.
Welcome aboard and enjoy the flight,
--------
Scott Liefeld
Flying N11MS since March 1972
Steel Tube
C-85-12
Wire Wheels
Brodhead in 1996
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=408785#408785
Message 14
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Subject: | Re: New Engine to replace Corvair |
And should swing a nice long prop.
On Sep 18, 2013, at 6:46 PM, Jack <jack@textors.com> wrote:
>
> That should help your CG problem!
>
> Sent from my iPad
> Jack Textor
>
> On Sep 18, 2013, at 7:39 PM, "John Francis" <Mrkringles@msn.com> wrote:
>
>>
>> My new engine showed up today to replace the Corvair I was originally going
to install.
>>
>> --------
>> John Francis
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=408819#408819
>>
>>
>>
>>
>> Attachments:
>>
>> http://forums.matronics.com//files/image_1135018178_353.jpg
>
>
>
>
>
Message 15
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|
Oscar,- Yes the gathering will be on the 7th this coming year.-- If y
ou get hung up with weather or decide to do it in two days there are a few
Pietenpol people from Northern California who came this year and will proba
bly come again.- Perhaps you could meet up with one or some of them and h
ead down together.- =0A=0A-I'm looking forward to meeting you, and Scou
t, in person at the gathering!=0A=0AMike Groah=0A=0A=0A=0A=0A______________
__________________=0A From: taildrags <taildrags@hotmail.com>=0ATo: pietenp
ol-list@matronics.com =0ASent: Wednesday, September 18, 2013 11:39 AM=0ASub
ject: Pietenpol-List: Re: First Post=0A =0A=0A--> Pietenpol-List message po
sted by: "taildrags" <taildrags@hotmail.com>=0A=0AVic-=0A=0AFor the West Co
ast fly-in, the first Saturday in June 2014 is the 7th.- Is that the corr
ect date for Frazier Lake?- I want to make it next year for sure.- It's
about 430 miles for me and Scout... a long day, probably 3 intermediate fu
el stops and 4 hops that I'll make on Friday the 6th so as to have the full
day there on Saturday.- If I get hung up in weather, I may need to make
it part-way on Friday and then arrive sometime mid-morning on Saturday.=0A
=0A--------=0AOscar Zuniga=0AMedford, OR=0AAir Camper NX41CC "Scout&qu
ot;=0AA75 power=0A=0A=0A=0A=0ARead this topic online here:=0A=0Ahttp://foru
===============
Message 16
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Dave,
Welcome! My Piet is in Lincoln (LHM), just northeast of Sacramento. It is
built mostly with Poplar, some of which I purchased from my local big box
aircraft supply store (Lowe's); but the longer pieces were purchased from a
local hardwood and flooring store. It's easiest when you can find a local
supplier and hand pick your pieces. Chances are, you could even go to your
local lumber supply, tell them you want clear, vertical grain boards (don't
say it's for an airplane), and they will be able to get it for you.
AC43.13 allows Doug Fir as a direct substitute, even allowing for lesser
dimensions as the wood is stronger than spruce. Contact me off list, if you
wish to discuss suitable grain. Gboothe5@comcast.net.
Gary Boothe
NX308MB
-----Original Message-----
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of David
Sent: Wednesday, September 18, 2013 6:33 PM
Subject: RE: Pietenpol-List: Re: First Post
Thanks everyone for the kind welcome.
We will be sure to check out the gathering in June next year.
I am working on the Bingelis books on eBay, and have been trying to acquire
a Corvair engine. This will be a long term project for the kids and I
(there's 5 of them) and we are also building a 1/5 scale RC model as well.
One initial question about wood - I have read that Douglas Fir can be used
as an alternative to Spruce. Is this a reasonable assumption? If so, can
someone point me towards a suitable source, preferably on the West Coast?
To foster some enthusiasm with the kids I'd like to get a few wing ribs done
- even if they end up on the wall as decoration - and I'm prepared to use
the construction of these as a learning and bonding experience (pun
intended).
Thanks again, Dave
-----Original Message-----
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of
AircamperN11MS
Sent: Wednesday, September 18, 2013 8:13 AM
Subject: Pietenpol-List: Re: First Post
<Scott.liefeld@lacity.org>
Welcome Dave,
I have a piet in Lancaster and there are a few others near by. You are
welcome to come up and see mine anytime you wish. There is a lot of
knowledge within this group.
My wife grew up in Simi and went to Royal High. In fact she is going down
today to visit with her mother.
Welcome aboard and enjoy the flight,
--------
Scott Liefeld
Flying N11MS since March 1972
Steel Tube
C-85-12
Wire Wheels
Brodhead in 1996
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=408785#408785
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