Today's Message Index:
----------------------
1. 01:47 AM - Re: Aluminum Wing Strut/Jury Strut Attachment (Scott Knowlton)
2. 03:45 AM - Re: BPA newsletter (Charles N. Campbell)
3. 04:55 AM - Re: Aluminum Wing Strut/Jury Strut Attachment (Jack Phillips)
4. 06:12 AM - Re: Aluminum Wing Strut/Jury Strut Attachment (Ken Bickers)
5. 06:13 AM - Re: Engines - Twin A-65 (John Fay)
6. 06:20 AM - Re: Engines - Twin A-65 (Brian Kenney)
7. 06:34 AM - Re: Engines - Twin A-65 (Brian Kenney)
8. 06:41 AM - Re: Engines - Twin A-65 (John Fay)
9. 06:45 AM - Jury struts (Douwe)
10. 06:47 AM - Broadhead light this year??? (Douwe)
11. 06:58 AM - Brodhead help (Douwe)
12. 07:27 AM - Re: Aluminum Wing Strut/Jury Strut Attachment (Scott Knowlton)
13. 08:24 AM - Re: Broadhead light this year??? (Jack Phillips)
14. 08:57 AM - Re: Aluminum Wing Strut/Jury Strut Attachment (Steven Dortch)
15. 09:03 AM - Re: Brodhead help (tools)
16. 09:27 AM - Re: Aluminum Wing Strut/Jury Strut Attachment (Steven Dortch)
17. 09:40 AM - Re: Aluminum Wing Strut/Jury Strut Attachment (Bill Church)
18. 10:13 AM - Pitot tube placement (Steven Dortch)
19. 11:30 AM - Re: Re: Aluminum Wing Strut/Jury Strut Attachment (Steven Dortch)
20. 02:38 PM - Re: Jury struts (danhelsper@aol.com)
21. 03:25 PM - Re: Bob's Pietenpol flies (Brett Phillips)
22. 07:20 PM - Re: Pitot tube placement (Brian Kenney)
23. 10:52 PM - Re: Broadhead light this year??? (shad bell)
Message 1
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Subject: | Re: Aluminum Wing Strut/Jury Strut Attachment |
Picture please!
Scott Knowlton
Sent from my iPhone
> On Jun 27, 2014, at 5:11 PM, "Ken Bickers" <bickers.ken@gmail.com> wrote:
>
> My thinking on this. I'm not a structural engineer. I don't know how muc
h a hole through the strut near its midpoint might weaken it, nor do I know h
ow to calculate such a figure. I do know that the jury strut is there to ke
ep the strut from collapsing near its midpoint when experiencing negative lo
ads (i.e., when in compression). I figured that putting a hole at the exact
spot that I was trying to keep the strut from collapsing was a bad idea. S
o I used straps to secure the jury struts. They were easy to make and easy t
o assemble.
>
>
>> On Fri, Jun 27, 2014 at 8:42 AM, Brian Kenney <brian.kenney@live.ca> wrot
e:
>> I don't think you need a 1/4" bolt for a jury strut and I think 3/16" sho
uld be enough. The bigger issue is the internal support if you use a pass th
ru bolt to prevent flattening the strut. One or two strong blind rivets on o
ne side may be better. The critical connections are the strut ends. I am wo
rking on designing them. The limiting issue with them seems to be the crushi
ng of the strut material by the thru bolts as they are in shear. To say it a
nother way, the elongation of the strut holes under maximum load. If anyone
has done this analysis I would like to hear about it.
>>
>> Date: Fri, 27 Jun 2014 07:24:49 -0700
>> From: speedbrake@sbcglobal.net
>> Subject: Pietenpol-List: Aluminum Wing Strut/Jury Strut Attachment
>> To: pietenpol-list@matronics.com
>>
>>
>> I have the smaller aluminum wing struts from Carlson Aircraft, (1.00" X 2
.44") and will also be using their jury struts. My questions are on the use o
f a single hole in each wing strut to use a 1/4" eyebolt to secure the jurys
. Will this hole compromise the strength of the strut? Would I be better off
using straps to secure the jurys?
>>
>> Thanks is advance!
>>
>> If God is your co-pilot...switch seats.
>> Mike Perez
>> Karetaker Aero
>> STILL Building...
>>
>>
>> st" target="_blank">http://www.matronics.com/Navigator?Pietenpol-List
>> http://forums.matronics.com
>> ="_blank">http://www.matronics.com/contribution
>>
>>
>>
>> " target="_blank">http://www.matronics.com/Navigator?Pietenpol-List
>> tp://forums.matronics.com
>> _blank">http://www.matronics.com/contribution
>>
>
>
>
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3
D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3
D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3
D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3
D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
>
Message 2
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Subject: | Re: BPA newsletter |
Douwe, I haven't gotten mine, either. Chuck
On Fri, Jun 27, 2014 at 3:42 PM, Douwe Blumberg <douweblumberg@earthlink.ne
t
> wrote:
> Hey John,
>
>
> Have the newsletters gone out? I=99ve been away and didn=99t
see it in the
> mail pile when I returned and was wondering.
>
>
> Douwe
>
> *
>
===========
.matronics.com/Navigator?Pietenpol-List>
===========
===========
om/contribution>
===========
>
> *
>
>
Message 3
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Subject: | Aluminum Wing Strut/Jury Strut Attachment |
Look at any Cub. They all have 'em.
Jack Phillips
NX899JP
Smith Mountain Lake (W91), Virginia
_____
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Scott
Knowlton
Sent: Saturday, June 28, 2014 4:47 AM
Subject: Re: Pietenpol-List: Aluminum Wing Strut/Jury Strut Attachment
Picture please!
Scott Knowlton
Sent from my iPhone
On Jun 27, 2014, at 5:11 PM, "Ken Bickers" <bickers.ken@gmail.com> wrote:
My thinking on this. I'm not a structural engineer. I don't know how much
a hole through the strut near its midpoint might weaken it, nor do I know
how to calculate such a figure. I do know that the jury strut is there to
keep the strut from collapsing near its midpoint when experiencing negative
loads (i.e., when in compression). I figured that putting a hole at the
exact spot that I was trying to keep the strut from collapsing was a bad
idea. So I used straps to secure the jury struts. They were easy to make
and easy to assemble.
On Fri, Jun 27, 2014 at 8:42 AM, Brian Kenney <brian.kenney@live.ca> wrote:
I don't think you need a 1/4" bolt for a jury strut and I think 3/16" should
be enough. The bigger issue is the internal support if you use a pass thru
bolt to prevent flattening the strut. One or two strong blind rivets on one
side may be better. The critical connections are the strut ends. I am
working on designing them. The limiting issue with them seems to be the
crushing of the strut material by the thru bolts as they are in shear. To
say it another way, the elongation of the strut holes under maximum load.
If anyone has done this analysis I would like to hear about it.
_____
From: speedbrake@sbcglobal.net
Subject: Pietenpol-List: Aluminum Wing Strut/Jury Strut Attachment
I have the smaller aluminum wing struts from Carlson Aircraft, (1.00" X
2.44") and will also be using their jury struts. My questions are on the use
of a single hole in each wing strut to use a 1/4" eyebolt to secure the
jurys. Will this hole compromise the strength of the strut? Would I be
better off using straps to secure the jurys?
Thanks is advance!
If God is your co-pilot...switch seats.
Mike Perez
Karetaker Aero
STILL Building...
st" target="_blank">http://www.matronics.com/Navigator?Pietenpol-List
http://forums.matronics.com
="_blank">http://www.matronics.com/contribution
" target="_blank">http://www.matronics.com/Navigator?Pietenpol-List
tp://forums.matronics.com
_blank">http://www.matronics.com/contribution
Message 4
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|
Subject: | Re: Aluminum Wing Strut/Jury Strut Attachment |
Scott, I don't have a bunch of close ups of the diagonal strut to jury
strut fitting. Here's one that will give you a pretty decent view of it.
I kept the resolution high so you could zoom in on the fitting itself. My
struts are round 4130, faired with balsa that I routed out and glued on.
As Jack says, you can also look at any Cub wing. In my case, the fittings
look remarkably similar to the ones used on the Aviat Husky. Cheers, Ken
On Sat, Jun 28, 2014 at 5:54 AM, Jack Phillips <jack@bedfordlandings.com>
wrote:
> Look at any Cub. They all have =98em.
>
>
> Jack Phillips
>
> NX899JP
>
> Smith Mountain Lake (W91), Virginia
>
>
> ------------------------------
>
> *From:* owner-pietenpol-list-server@matronics.com [mailto:
> owner-pietenpol-list-server@matronics.com] *On Behalf Of *Scott Knowlton
> *Sent:* Saturday, June 28, 2014 4:47 AM
> *To:* pietenpol-list@matronics.com
> *Subject:* Re: Pietenpol-List: Aluminum Wing Strut/Jury Strut Attachment
>
>
> Picture please!
>
>
> Scott Knowlton
>
> Sent from my iPhone
>
>
> On Jun 27, 2014, at 5:11 PM, "Ken Bickers" <bickers.ken@gmail.com> wrote:
>
> My thinking on this. I'm not a structural engineer. I don't know how
> much a hole through the strut near its midpoint might weaken it, nor do I
> know how to calculate such a figure. I do know that the jury strut is
> there to keep the strut from collapsing near its midpoint when experienci
ng
> negative loads (i.e., when in compression). I figured that putting a hol
e
> at the exact spot that I was trying to keep the strut from collapsing was
a
> bad idea. So I used straps to secure the jury struts. They were easy to
> make and easy to assemble.
>
>
> On Fri, Jun 27, 2014 at 8:42 AM, Brian Kenney <brian.kenney@live.ca>
> wrote:
>
> I don't think you need a 1/4" bolt for a jury strut and I think 3/16"
> should be enough. The bigger issue is the internal support if you use a
> pass thru bolt to prevent flattening the strut. One or two strong blind
> rivets on one side may be better. The critical connections are the strut
> ends. I am working on designing them. The limiting issue with them seems
to
> be the crushing of the strut material by the thru bolts as they are in
> shear. To say it another way, the elongation of the strut holes under
> maximum load. If anyone has done this analysis I would like to hear abou
t
> it.
> ------------------------------
>
> Date: Fri, 27 Jun 2014 07:24:49 -0700
> From: speedbrake@sbcglobal.net
> Subject: Pietenpol-List: Aluminum Wing Strut/Jury Strut Attachment
> To: pietenpol-list@matronics.com
>
>
> I have the smaller aluminum wing struts from Carlson Aircraft, (1.00" X
> 2.44") and will also be using their jury struts. My questions are on the
> use of a single hole in each wing strut to use a 1/4" eyebolt to secure t
he
> jurys. Will this hole compromise the strength of the strut? Would I be
> better off using straps to secure the jurys?
>
>
> Thanks is advance!
>
>
> If God is your co-pilot...switch seats.
> Mike Perez
> Karetaker Aero
> STILL Building...
>
>
> *st" target="_blank">http://www.matronics.com/Navigator?Pietenpol-List
<http://www.matronics.com/Navigator?Pietenpol-List>*
>
> *http://forums.matronics.com <http://forums.matronics.com>*
>
> *="_blank">http://www.matronics.com/contribution <http://www.matronics.
com/contribution>*
>
>
> *" target="_blank">http://www.matronics.com/Navigator?Pietenpol-List <h
ttp://www.matronics.com/Navigator?Pietenpol-List>*
>
> *tp://forums.matronics.com <http://forums.matronics.com>*
>
> *_blank">http://www.matronics.com/contribution <http://www.matronics.com/
contribution>*
>
>
> *
>
===========
.matronics.com/Navigator?Pietenpol-List>
===========
===========
om/contribution>
===========
>
> *
>
>
Message 5
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|
Subject: | Re: Engines - Twin A-65 |
Mike,
I was aware of that plane, and have seen pictures of it, but had not made a
mention of it on the list. I have changed that.
Can I get a more specific description of the Mitsubishi engine? Does
anybody know what the type of Toyota engine was that the builders in New
Zealand used?
John Fay (My latest amended list follows; it includes the Jeep engine
in the pending category)
*Pietenpol Engines*
Continental 50 hp
A-65
Twin A-65
C-65
A-75
A-80
C-85
C-90
O-200
Twin 65 hp
Continental Industrial Engine
Lycoming 50 hp O-145
65 hp
O-235
GPU
Franklin 50 hp
65 hp
90 hp
Ford Model A
Model B
Flat head V-8
Escort engine
Cortina engine
Fiesta engine
Funk 200 standard
200 inverted
Wilksch Airmotive WAM-100 diesel
Warner radial 145 hp
LeBlond radial
Salmson radial
Kinner radial
Velie radial
Rotec radial
Lambert radial
Mikron
Rotax 912S
Chevrolet 2.5L (Iron Duke)
Buick V-8
Rover V-8
Corvair
Toyota (I don't remember which one, but there was a pic a few months ago of
two Piets in New Zealand who were powered
by Toyotas)
Toyota 2C Turbo Diesel
Subaru
Turbo Subaru
Geo/Suzuki 2300 cc
Mercedes Diesel
Mitsubishi
*Soon to be*
BMW K100 motorcycle engine
Jeep 134 L
*Used on Pietenpol Scout*
Model T
Chevrolet Vega
(Was there a successful Volkswagen? Was a Vega engine ever used on an
aircamper?)
Unconfirmed: Dodge 4 cyl. Inline
Ford Falcon inverted straight six
Message 6
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|
Subject: | Re: Engines - Twin A-65 |
The New Zealand engines are Toyota helix engines or a Chinese copy of it use
d in tow motors. I think it is 2.3 liter but not sure.
Sent from my iPad
> On Jun 28, 2014, at 9:16 AM, "John Fay" <jfay1950@gmail.com> wrote:
>
> Mike,
>
> I was aware of that plane, and have seen pictures of it, but had not made a
mention of it on the list. I have changed that.
> Can I get a more specific description of the Mitsubishi engine? Does any
body know what the type of Toyota engine was that the builders in New Zealan
d used?
>
> John Fay (My latest amended list follows; it includes the Jeep engine i
n the pending category)
>
>
>
>
> Pietenpol Engines
>
>
> Continental 50 hp
> A-65
> Twin A-65
> C-65
> A-75
> A-80
> C-85
> C-90
> O-200
> Twin 65 hp
>
>
> Continental Industrial Engine
>
>
> Lycoming 50 hp O-145
>
> 65 hp
> O-235
> GPU
>
> Franklin 50 hp
>
> 65 hp
>
> 90 hp
>
>
> Ford Model A
> Model B
> Flat head V-8
> Escort engine
> Cortina engine
> Fiesta engine
>
> Funk 200 standard
> 200 inverted
>
> Wilksch Airmotive WAM-100 diesel
> Warner radial 145 hp
> LeBlond radial
>
> Salmson radial
>
> Kinner radial
> Velie radial
> Rotec radial
> Lambert radial
> Mikron
>
> Rotax 912S
>
>
>
> Chevrolet 2.5L (Iron Duke)
> Buick V-8
> Rover V-8
>
> Corvair
> Toyota (I don't remember which one, but there was a pic a few months ago o
f
> two Piets in New Zealand who were powered
by Toyotas)
> Toyota 2C Turbo Diesel
>
> Subaru
> Turbo Subaru
>
> Geo/Suzuki 2300 cc
>
> Mercedes Diesel
> Mitsubishi
>
>
>
> Soon to be
> BMW K100 motorcycle engine
>
> Jeep 134 L
>
>
> Used on Pietenpol Scout
>
> Model T
>
> Chevrolet Vega
>
>
>
> (Was there a successful Volkswagen? Was a Vega engine ever used on an a
ircamper?)
>
> Unconfirmed: Dodge 4 cyl. Inline
>
> Ford Falcon inverted straight six
>
>
>
>
>
>
>
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3
D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3
D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3
D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3
D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
>
Message 7
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|
Subject: | Re: Engines - Twin A-65 |
Found it Toyota 4Y. 2.2 liter or Chinese copy of the same
Sent from my iPad
> On Jun 28, 2014, at 9:16 AM, "John Fay" <jfay1950@gmail.com> wrote:
>
> Mike,
>
> I was aware of that plane, and have seen pictures of it, but had not made a
mention of it on the list. I have changed that.
> Can I get a more specific description of the Mitsubishi engine? Does any
body know what the type of Toyota engine was that the builders in New Zealan
d used?
>
> John Fay (My latest amended list follows; it includes the Jeep engine i
n the pending category)
>
>
>
>
> Pietenpol Engines
>
>
> Continental 50 hp
> A-65
> Twin A-65
> C-65
> A-75
> A-80
> C-85
> C-90
> O-200
> Twin 65 hp
>
>
> Continental Industrial Engine
>
>
> Lycoming 50 hp O-145
>
> 65 hp
> O-235
> GPU
>
> Franklin 50 hp
>
> 65 hp
>
> 90 hp
>
>
> Ford Model A
> Model B
> Flat head V-8
> Escort engine
> Cortina engine
> Fiesta engine
>
> Funk 200 standard
> 200 inverted
>
> Wilksch Airmotive WAM-100 diesel
> Warner radial 145 hp
> LeBlond radial
>
> Salmson radial
>
> Kinner radial
> Velie radial
> Rotec radial
> Lambert radial
> Mikron
>
> Rotax 912S
>
>
>
> Chevrolet 2.5L (Iron Duke)
> Buick V-8
> Rover V-8
>
> Corvair
> Toyota (I don't remember which one, but there was a pic a few months ago o
f
> two Piets in New Zealand who were powered
by Toyotas)
> Toyota 2C Turbo Diesel
>
> Subaru
> Turbo Subaru
>
> Geo/Suzuki 2300 cc
>
> Mercedes Diesel
> Mitsubishi
>
>
>
> Soon to be
> BMW K100 motorcycle engine
>
> Jeep 134 L
>
>
> Used on Pietenpol Scout
>
> Model T
>
> Chevrolet Vega
>
>
>
> (Was there a successful Volkswagen? Was a Vega engine ever used on an a
ircamper?)
>
> Unconfirmed: Dodge 4 cyl. Inline
>
> Ford Falcon inverted straight six
>
>
>
>
>
>
>
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3
D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3
D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3
D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3
D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
>
Message 8
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|
Subject: | Re: Engines - Twin A-65 |
Thanks Bryan. I will modify my master list.
John Fay
On Sat, Jun 28, 2014 at 8:33 AM, Brian Kenney <brian.kenney@live.ca> wrote:
> Found it Toyota 4Y. 2.2 liter or Chinese copy of the same
>
> Sent from my iPad
>
>
> On Jun 28, 2014, at 9:16 AM, "John Fay" <jfay1950@gmail.com> wrote:
>
> Mike,
>
> I was aware of that plane, and have seen pictures of it, but had not made
> a mention of it on the list. I have changed that.
> Can I get a more specific description of the Mitsubishi engine? Does
> anybody know what the type of Toyota engine was that the builders in New
> Zealand used?
>
> John Fay (My latest amended list follows; it includes the Jeep engine
> in the pending category)
>
>
> *Pietenpol Engines*
>
> Continental 50 hp
>
> A-65
> Twin A-65
>
> C-65
>
> A-75
> A-80
>
> C-85
> C-90
> O-200
> Twin 65 hp
>
> Continental Industrial Engine
>
> Lycoming 50 hp O-145
>
> 65 hp
> O-235
> GPU
>
> Franklin 50 hp
>
> 65 hp
>
> 90 hp
>
>
> Ford Model A
> Model B
> Flat head V-8
> Escort engine
> Cortina engine
> Fiesta engine
>
> Funk 200 standard
> 200 inverted
>
> Wilksch Airmotive WAM-100 diesel
> Warner radial 145 hp
> LeBlond radial
>
> Salmson radial
>
> Kinner radial
> Velie radial
> Rotec radial
> Lambert radial
> Mikron
>
> Rotax 912S
>
>
> Chevrolet 2.5L (Iron Duke)
> Buick V-8
> Rover V-8
>
> Corvair
> Toyota (I don't remember which one, but there was a pic a few months ago
> of
> two Piets in New Zealand who were
> powered by Toyotas)
> Toyota 2C Turbo Diesel
>
> Subaru
> Turbo Subaru
>
> Geo/Suzuki 2300 cc
>
> Mercedes Diesel
> Mitsubishi
>
>
> *Soon to be*
> BMW K100 motorcycle engine
>
> Jeep 134 L
>
>
> *Used on Pietenpol Scout*
>
> Model T
>
> Chevrolet Vega
>
>
> (Was there a successful Volkswagen? Was a Vega engine ever used on an
> aircamper?)
>
> Unconfirmed: Dodge 4 cyl. Inline
>
> Ford Falcon inverted straight six
>
>
> *
>
>
> *
>
>
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Mike
Drilling holes in the center of the strut gives me the creeps. I've seen it on
flying planes and none have failed that I know of BUT if a strap fitting works,
I can't think of a single reason other than aesthetics not to go that route
Douwe
Sent from my iPhone
Message 10
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Subject: | Broadhead light this year??? |
Dang, I sure hope more of you than responded are flying up or it'll be a very light
year!
Douwe
Sent from my iPhone
Message 11
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Hey all
Marci is thinking of flying with me to brodhead. If so, I need to get our camping
gear up and back
A friend up there has kindly volunteered to bring a tent, bags. Chairs to meet
is but there's still food, clothes, stove etc
Is anybody coming anywhere near Cincinnati on their way who would be willing to
help out??
I suppose I could ship the stuff up and back
Douwe
805 573 3564
Sent from my iPhone
Message 12
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Subject: | Aluminum Wing Strut/Jury Strut Attachment |
Thanks Ken. Great pic
Scott
Subject: Re: Pietenpol-List: Aluminum Wing Strut/Jury Strut Attachment
From: bickers.ken@gmail.com
Scott=2C I don't have a bunch of close ups of the diagonal strut to jury st
rut fitting. Here's one that will give you a pretty decent view of it. I
kept the resolution high so you could zoom in on the fitting itself. My st
ruts are round 4130=2C faired with balsa that I routed out and glued on. A
s Jack says=2C you can also look at any Cub wing. In my case=2C the fittin
gs look remarkably similar to the ones used on the Aviat Husky. Cheers=2C
Ken
On Sat=2C Jun 28=2C 2014 at 5:54 AM=2C Jack Phillips <jack@bedfordlandings.
com> wrote:
Look at any Cub. They all have =91em.
Jack Phillips
NX899JP
Smith Mountain Lake (W91)=2C Virginia
From:
owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Scott Knowl
ton
Sent: Saturday=2C June 28=2C 2014 4:47
AM
Subject: Re: Pietenpol-List:
Aluminum Wing Strut/Jury Strut Attachment
Picture please!
Scott Knowlton
Sent from my iPhone
On Jun 27=2C 2014=2C at 5:11 PM=2C "Ken Bickers" <bickers.ken@gmail.com> wr
ote:
My thinking on this. I'm not a structural engineer. I don't
know how much a hole through the strut near its midpoint might weaken it=2C
nor
do I know how to calculate such a figure. I do know that the jury strut
is there to keep the strut from collapsing near its midpoint when experienc
ing
negative loads (i.e.=2C when in compression). I figured that putting a hol
e
at the exact spot that I was trying to keep the strut from collapsing was a
bad
idea. So I used straps to secure the jury struts. They were easy to
make and easy to assemble.
On Fri=2C Jun 27=2C 2014 at 8:42 AM=2C Brian Kenney <brian.kenney@live.ca>
wrote:
I don't think you need a
1/4" bolt for a jury strut and I think 3/16" should be enough.
The bigger issue is the internal support if you use a pass thru bolt to pre
vent
flattening the strut. One or two strong blind rivets on one side may be
better. The critical connections are the strut ends. I am working on
designing them. The limiting issue with them seems to be the crushing of th
e
strut material by the thru bolts as they are in shear. To say it another wa
y=2C
the elongation of the strut holes under maximum load. If anyone has done
this analysis I would like to hear about it.
From: speedbrake@sbcglobal.net
Subject: Pietenpol-List: Aluminum Wing Strut/Jury Strut Attachment
I have the smaller aluminum wing struts from Carlson Aircraft=2C
(1.00" X 2.44") and will also be using their jury struts. My
questions are on the use of a single hole in each wing strut to use a 1/4"
eyebolt to secure the jurys. Will this hole compromise the strength of the
strut?
Would I be better off using straps to secure the jurys?
Thanks is
advance!
If God is your co-pilot...switch seats.
Mike Perez
Karetaker Aero
STILL Building...
st" target="_blank">http://www.matronics.com/Navigator?Pietenpol-List
http://forums.matronics.com
="_blank">http://www.matronics.com/contribution
" target="_blank">http://www.matronics.com/Navigator?Pietenpol-List
tp://forums.matronics.com_blank">http://www.matronics.com/contribution
" target="_blank">http://www.matronics.com/Navigator?Pietenpol-List
tp://forums.matronics.com
_blank">http://www.matronics.com/contribution
Message 13
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Subject: | Broadhead light this year??? |
I most likely won't be there this year - the Bed & Breakfast is much busier
than I expected and we have a full house that weekend. If I get a chance to
get away, I'll try to come up Friday for one night, but it will have to be
in the RV4.
Jack Phillips
NX899JP
Smith Mountain Lake (W91), Virginia
-----Original Message-----
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Douwe
Sent: Saturday, June 28, 2014 9:47 AM
Subject: Pietenpol-List: Broadhead light this year???
Dang, I sure hope more of you than responded are flying up or it'll be a
very light year!
Douwe
Sent from my iPhone
Message 14
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Subject: | Re: Aluminum Wing Strut/Jury Strut Attachment |
Here is a 1947 J3 cub jury strut. from straight ahead. Note the Pitot runs
down through the Jury strut. must be a speed mod!
Also a couple of grainy photos of the cub style jury strut attachments.
I would go this way. No worries about weakening your strut.
UNIVAIR calls it a front or rear Jury strut clamp assembly. Wag Aero has
them somewhat cheaper.
If you need I can take and send better photos of the clamps.
Blue Skies,
Steve D
On Sat, Jun 28, 2014 at 3:46 AM, Scott Knowlton <flyingscott_k@hotmail.com>
wrote:
> Picture please!
>
> Scott Knowlton
>
> Sent from my iPhone
>
> On Jun 27, 2014, at 5:11 PM, "Ken Bickers" <bickers.ken@gmail.com> wrote:
>
> My thinking on this. I'm not a structural engineer. I don't know how
> much a hole through the strut near its midpoint might weaken it, nor do I
> know how to calculate such a figure. I do know that the jury strut is
> there to keep the strut from collapsing near its midpoint when experiencing
> negative loads (i.e., when in compression). I figured that putting a hole
> at the exact spot that I was trying to keep the strut from collapsing was a
> bad idea. So I used straps to secure the jury struts. They were easy to
> make and easy to assemble.
>
>
> On Fri, Jun 27, 2014 at 8:42 AM, Brian Kenney <brian.kenney@live.ca>
> wrote:
>
>> I don't think you need a 1/4" bolt for a jury strut and I think 3/16"
>> should be enough. The bigger issue is the internal support if you use a
>> pass thru bolt to prevent flattening the strut. One or two strong blind
>> rivets on one side may be better. The critical connections are the strut
>> ends. I am working on designing them. The limiting issue with them seems to
>> be the crushing of the strut material by the thru bolts as they are in
>> shear. To say it another way, the elongation of the strut holes under
>> maximum load. If anyone has done this analysis I would like to hear about
>> it.
>>
>> ------------------------------
>> Date: Fri, 27 Jun 2014 07:24:49 -0700
>> From: speedbrake@sbcglobal.net
>> Subject: Pietenpol-List: Aluminum Wing Strut/Jury Strut Attachment
>> To: pietenpol-list@matronics.com
>>
>>
>> I have the smaller aluminum wing struts from Carlson Aircraft, (1.00" X
>> 2.44") and will also be using their jury struts. My questions are on the
>> use of a single hole in each wing strut to use a 1/4" eyebolt to secure the
>> jurys. Will this hole compromise the strength of the strut? Would I be
>> better off using straps to secure the jurys?
>>
>> Thanks is advance!
>>
>> If God is your co-pilot...switch seats.
>> Mike Perez
>> Karetaker Aero
>> STILL Building...
>>
>> *
>>
>> st" target="_blank">http://www.matronics.com/Navigator?Pietenpol-List <http://www.matronics.com/Navigator?Pietenpol-List>
>> http://forums.matronics.com <http://forums.matronics.com>
>> ="_blank">http://www.matronics.com/contribution <http://www.matronics.com/contribution>
>>
>> *
>>
>> *
>>
>> " target="_blank">http://www.matronics.com/Navigator?Pietenpol-List <http://www.matronics.com/Navigator?Pietenpol-List>
>> tp://forums.matronics.com <http://forums.matronics.com>
>> _blank">http://www.matronics.com/contribution <http://www.matronics.com/contribution>
>>
>> *
>>
>>
>
>
> *
>
>
> *
>
>
--
Blue Skies,
Steve D
Message 15
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Subject: | Re: Brodhead help |
I'm driving and willing to bring whatever you need, just give me a list and I'll
see how it compares to spares.
Even willing to loan clothes! Uh... might wanna just bring your own skivvies though..
Not going very close to cincy... any chance you're doing or know someone doing
some sort of trip to our path between atlanta and brodhead? Could drop off somewhere
along there also. Pretty certain about any airport FBO would hold a box
of stuff, or pilot lounge, whatever.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=425680#425680
Message 16
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Subject: | Re: Aluminum Wing Strut/Jury Strut Attachment |
I felt guilty about the grainy photos of the clamps. Here is a better
photo. Note they are made for a cub with big front and small rear struts.
Right and left.
Blue Skies,
Steve D.
On Sat, Jun 28, 2014 at 10:56 AM, Steven Dortch <steven.d.dortch@gmail.com>
wrote:
> Here is a 1947 J3 cub jury strut. from straight ahead. Note the Pitot
> runs down through the Jury strut. must be a speed mod!
>
>
> Also a couple of grainy photos of the cub style jury strut attachments.
>
> I would go this way. No worries about weakening your strut.
>
> UNIVAIR calls it a front or rear Jury strut clamp assembly. Wag Aero has
> them somewhat cheaper.
>
> If you need I can take and send better photos of the clamps.
>
> Blue Skies,
> Steve D
>
>
> On Sat, Jun 28, 2014 at 3:46 AM, Scott Knowlton <flyingscott_k@hotmail.com
> > wrote:
>
>> Picture please!
>>
>> Scott Knowlton
>>
>> Sent from my iPhone
>>
>> On Jun 27, 2014, at 5:11 PM, "Ken Bickers" <bickers.ken@gmail.com> wrote:
>>
>> My thinking on this. I'm not a structural engineer. I don't know how
>> much a hole through the strut near its midpoint might weaken it, nor do I
>> know how to calculate such a figure. I do know that the jury strut is
>> there to keep the strut from collapsing near its midpoint when experiencing
>> negative loads (i.e., when in compression). I figured that putting a hole
>> at the exact spot that I was trying to keep the strut from collapsing was a
>> bad idea. So I used straps to secure the jury struts. They were easy to
>> make and easy to assemble.
>>
>>
>> On Fri, Jun 27, 2014 at 8:42 AM, Brian Kenney <brian.kenney@live.ca>
>> wrote:
>>
>>> I don't think you need a 1/4" bolt for a jury strut and I think 3/16"
>>> should be enough. The bigger issue is the internal support if you use a
>>> pass thru bolt to prevent flattening the strut. One or two strong blind
>>> rivets on one side may be better. The critical connections are the strut
>>> ends. I am working on designing them. The limiting issue with them seems to
>>> be the crushing of the strut material by the thru bolts as they are in
>>> shear. To say it another way, the elongation of the strut holes under
>>> maximum load. If anyone has done this analysis I would like to hear about
>>> it.
>>>
>>> ------------------------------
>>> Date: Fri, 27 Jun 2014 07:24:49 -0700
>>> From: speedbrake@sbcglobal.net
>>> Subject: Pietenpol-List: Aluminum Wing Strut/Jury Strut Attachment
>>> To: pietenpol-list@matronics.com
>>>
>>>
>>> I have the smaller aluminum wing struts from Carlson Aircraft, (1.00" X
>>> 2.44") and will also be using their jury struts. My questions are on the
>>> use of a single hole in each wing strut to use a 1/4" eyebolt to secure the
>>> jurys. Will this hole compromise the strength of the strut? Would I be
>>> better off using straps to secure the jurys?
>>>
>>> Thanks is advance!
>>>
>>> If God is your co-pilot...switch seats.
>>> Mike Perez
>>> Karetaker Aero
>>> STILL Building...
>>>
>>> *
>>>
>>> st" target="_blank">http://www.matronics.com/Navigator?Pietenpol-List <http://www.matronics.com/Navigator?Pietenpol-List>
>>> http://forums.matronics.com <http://forums.matronics.com>
>>> ="_blank">http://www.matronics.com/contribution <http://www.matronics.com/contribution>
>>>
>>> *
>>>
>>> *
>>>
>>> " target="_blank">http://www.matronics.com/Navigator?Pietenpol-List <http://www.matronics.com/Navigator?Pietenpol-List>
>>> tp://forums.matronics.com <http://forums.matronics.com>
>>> _blank">http://www.matronics.com/contribution <http://www.matronics.com/contribution>
>>>
>>> *
>>>
>>>
>>
>>
>> *
>>
>>
>> *
>>
>>
>
>
> --
> Blue Skies,
> Steve D
>
--
Blue Skies,
Steve D
Message 17
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Subject: | Re: Aluminum Wing Strut/Jury Strut Attachment |
A couple of shots of Ken Perkins' strap fittings.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=425682#425682
Attachments:
http://forums.matronics.com//files/bhead050134_346.jpg
http://forums.matronics.com//files/bhead050133_573.jpg
Message 18
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Subject: | Pitot tube placement |
Originally the Pitot tube ran up the left front strut to the bottom of the
wing.
I am looking at running the tube through the wing and would like to drop it
down where the jury struts are. The jury struts look to be about 12 inches
outside the prop arc.
Is this far enough out to be outside the prop wash?
--
Blue Skies,
Steve D
Message 19
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Subject: | Re: Aluminum Wing Strut/Jury Strut Attachment |
If I were fabricating New, I would do them like Ken Perkin's. Simple and
they work.
Blue Skies,
Steve D.
On Sat, Jun 28, 2014 at 11:40 AM, Bill Church <billspiet@sympatico.ca>
wrote:
> billspiet@sympatico.ca>
>
> A couple of shots of Ken Perkins' strap fittings.
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=425682#425682
>
>
> Attachments:
>
> http://forums.matronics.com//files/bhead050134_346.jpg
> http://forums.matronics.com//files/bhead050133_573.jpg
>
>
--
Blue Skies,
Steve D
Message 20
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Here's one way to do it.
Dan Helsper
Puryear, TN
-----Original Message-----
From: Douwe <douweblumberg@earthlink.net>
Sent: Sat, Jun 28, 2014 8:45 am
Subject: Pietenpol-List: Jury struts
Mike
Drilling holes in the center of the strut gives me the creeps. I've seen i
t on
flying planes and none have failed that I know of BUT if a strap fitting wo
rks,
I can't think of a single reason other than aesthetics not to go that route
Douwe
Sent from my iPhone
Message 21
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Subject: | Re: Bob's Pietenpol flies |
Had a fly by a little while ago, wish I could have seen it closer. Hopefully I'll
get to see you at Brodhead.
--------
PLEASE DO NOT ARCHIVE!
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=425691#425691
Message 22
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Subject: | Pitot tube placement |
I have mine just below the rear jury strut. Works great and no one has ever
walked into it.
Subject: Pietenpol-List: Pitot tube placement
From: steven.d.dortch@gmail.com
Originally the Pitot tube ran up the left front strut to the bottom of the
wing. I am looking at running the tube through the wing and would like to
drop it down where the jury struts are. The jury struts look to be about 12
inches outside the prop arc. =0A
Is this far enough out to be outside the prop wash?
--
Blue Skies=2C
Steve D
=0A
=0A
=0A
=0A
=0A
============0A
============0A
============0A
============0A
=0A
Message 23
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|
Subject: | Re: Broadhead light this year??? |
I might be going, not sure yet.=0A-=0AShad =0A=0A=0AOn Saturday, June 28,
2014 11:30 AM, Jack Phillips <jack@bedfordlandings.com> wrote:=0A =0A=0A
ngs.com>=0A=0AI most likely won't be there this year - the Bed & Breakfast
is much busier=0Athan I expected and we have a full house that weekend.-
If I get a chance to=0Aget away, I'll try to come up Friday for one night,
but it will have to be=0Ain the RV4.=0A=0AJack Phillips=0ANX899JP=0ASmith M
ountain Lake (W91), Virginia=0A=0A-----Original Message-----=0AFrom: owner-
pietenpol-list-server@matronics.com=0A[mailto:owner-pietenpol-list-server@m
atronics.com] On Behalf Of Douwe=0ASent: Saturday, June 28, 2014 9:47 AM=0A
rg@earthlink.net>=0A=0ADang, I sure hope more of you than responded are fly
ing up or it'll be a=0Avery light year!=0A=0ADouwe=0A=0ASent from my iPhone
========================
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