Today's Message Index:
----------------------
1. 01:40 AM - Re: 601XL form blocks joggle and crimp cutouts (Larry Winger)
2. 01:59 AM - Re: 601XL form blocks joggle and crimp cutouts (Jugle)
3. 02:12 AM - Re: Tachometer Problems (Tommy Walker)
4. 03:48 AM - Re: Re:Jabiru Cooling (IFLYSMODEL@aol.com)
5. 03:58 AM - Re: Serial to gray code converter (Gordon)
6. 04:44 AM - Re: Tach problem (Zed Smith)
7. 06:33 AM - Streamline Struts on a 701 (LRM)
8. 07:22 AM - Airplane part (robert stone)
9. 07:22 AM - Airplane part (robert stone)
10. 07:36 AM - Re: Piano hinge lube (Dave VanLanen)
11. 07:46 AM - Re: Airplane part (Robin Bellach)
12. 08:06 AM - Re: Airplane part (Zed Smith)
13. 08:42 AM - Re: Airplane part (Leo Gates)
14. 09:01 AM - Re: Airplane part (Bryan Martin)
15. 09:07 AM - Re: 601XL form blocks joggle and crimp cutouts (ashontz)
16. 09:20 AM - 601XL Project for Sale (Dan Forney)
17. 09:46 AM - Re: streamline struts on 701 (Tracy)
18. 01:23 PM - Piano hinged ailerons (hansriet)
19. 02:33 PM - Re: Piano hinged ailerons (Jaybannist@cs.com)
20. 03:23 PM - Re: 601XL form blocks joggle and crimp cutouts (Maarten Versteeg)
21. 03:34 PM - Re: Piano hinged ailerons (george may)
22. 03:51 PM - Re: Streamline Struts on a 701 (ZodieRocket)
23. 03:59 PM - Re: 601XL form blocks joggle and crimp cutouts (Ron Lendon)
24. 04:08 PM - Light Sport Recumbent Bike (Ron Lendon)
25. 04:25 PM - Re: Airplane part (Southern Reflections)
26. 04:53 PM - Re: Streamline Struts on a 701 (ROBERT SCEPPA)
27. 05:13 PM - Missing pages (Bob Unternaehrer)
28. 05:26 PM - Re: Missing pages (ZodieRocket)
29. 05:33 PM - Re: Missing pages (Craig Payne)
30. 07:03 PM - Re: Streamline Struts on a 701 (LRM)
31. 07:11 PM - Airmaster inflight adjustable prop hub (Gord)
32. 07:20 PM - Re: Streamline Struts on a 701 (NYTerminat@aol.com)
33. 07:21 PM - Re: Streamline Struts on a 701 (ZodieRocket)
34. 07:40 PM - Re: Missing pages (Bob Unternaehrer)
35. 07:40 PM - Re: Missing pages (Bob Unternaehrer)
36. 07:52 PM - Re: Streamline Struts on a 701 (David Downey)
37. 10:11 PM - Re: Streamline Struts on a 701 (George Swinford)
Message 1
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| Subject: | Re: 601XL form blocks joggle and crimp cutouts |
I didn't round them, and didn't have any problem with cracking. The joggle
just isn't that extreme, and you shouldn't need to beat them down with great
force. You should be fine.
Larry Winger
601XL/Corvair
Scratch building
Wings 80% done
On 10/30/07, Jugle <glenn@eastcoastit.net> wrote:
>
>
> Forgive me if I'm getting a bit pedantic here, but I just want to be sure.
> Where I've notched out the form blocks for the joggle for the spar and for
> the crimps along the rib edges, do I need to round those edges off like the
> rest of the block?
>
> I'm concerned that if I bash with a hammer and wooden block to follow
> those recesses I might get some cracking... or is the bend shallow enough to
> cope?
>
> What have you done?
>
> Glenn.
>
> --------
> Glenn Andressen
> 601XL- just started.
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=142906#142906
>
>
Message 2
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| Subject: | Re: 601XL form blocks joggle and crimp cutouts |
lwinger wrote:
> I didn't round them, and didn't have any problem with cracking. The joggle just
isn't that extreme, and you shouldn't need to beat them down with great force.
You should be fine.
>
Thanks Larry.
BTW, I have your kitlog site bookmarked and have already used it several times
as a reference. Keep up the good work.
Glenn
--------
Glenn Andressen
601XL- just started.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=142910#142910
Message 3
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| Subject: | Re: Tachometer Problems |
Hi Dan,
I had that problem on the first run up of my 912. after checking everything
else, I swapped the two leads going to the tach and it fixed the problem.
I remember when I wired up the tach that I called support and asked which
lead went where, and was told that it didn't seem to matter. It did in my
case.
Hope this helps,
Tommy Walker in Alabama
N8701 18 Hrs.
Vote Democrat - it's easier than working!
Vote Republican - it's easier than thinking!
Message 4
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| Subject: | Re:Jabiru Cooling |
Thanks for the idea, Ron: I will try it on my 601 HD
Lynn
Message 5
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| Subject: | Re: Serial to gray code converter |
I bought the appropriate converter from Dynon to solve the same issue. Easy
to hook-up.
Gordon
----- Original Message -----
From: <dredmoody@cox.net>
Sent: Tuesday, October 30, 2007 8:32 PM
Subject: Zenith-List: Serial to gray code converter
>
> Hey guys, I've got an encoder that puts out serial altitude data and a
> Becker 4401-1 transponder that accepts only gray code altitude data.
>
> Anybody out there have any experience with the Dynon serial to gray code
> converter module? Any info or advice would be appreciated.
>
> Thanks,
>
> Dred
>
>
>
Message 6
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| Subject: | Re: Tach problem |
do not archive
You don't say what brand of tach, but if it is a WesTach brand you might try putting
a 1K Ohm resistor across the tach leads to swamp the "ringing" that is present
with each tach pulse from the engine.
Observed on a 'scope, this looks like several small pulses on either side of the
main pulse.
The tach circuitry sees these as just more pulses, and results in erratic readings.
The "error factor" changes with engine speed as the amount/amplitude/shape of the
ringing changes.
The resistor lowers the amplitude of the extra stuff so that the tach only sees
the main pulse.
The 1K value may not be correct for each application. WesTach web site has application
info which will probably apply to most any brand of electronic tach.
You can connect a 5K pot across the tach, using the pot center terminal and one
end terminal, then vary the pot to determine at what setting the tach works best.
Read the resistance between these two terminals with an ohmmeter to find
the value you need.
Hope this helps.
Zed/701/R912/90+%/etc
Message 7
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| Subject: | Streamline Struts on a 701 |
A question for my learned fellow builders. Should one replace the round
tube struts on a 701 with streamline struts can the jury struts be
eliminated? If yes, why. If no, why.
Larry, www.SkyHawg.com, N1345L
Message 8
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Members,
I was flying along fat, dumb, and happy when the part in the
attached picture fell out from behind the instrument panel. Can any of
you builders of the ZodiacXL tell me what this part is supposed to do
and where does it go???
Bob Stone
Harker Heights, Tx
ZodiacXL w/Jabiru 3300
Message 9
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Members,
I was flying along fat, dumb, and happy when the part in the
attached picture fell out from behind the instrument panel. Can any of
you builders of the ZodiacXL tell me what this part is supposed to do
and where does it go???
Bob Stone
Harker Heights, Tx
ZodiacXL w/Jabiru 3300
Message 10
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| Subject: | Re: Piano hinge lube |
Tim,
Sorry - I forgot to mention when we were communicating earlier that I had
checked with Caleb at Zenith regarding this question. He said that they use
Corrosion X on their aircraft. There is a Corrosion X Aviation product
available. I believe it is carried by Aircraft Spruce and Wicks, and you
can also order it directly from the company - Corrosion Technologies Corp.
According to their website, it uses the latest advances in FTFC (Fluid Thin
Film Coating) technology, and it is qualified under Mil-C-81309E, Type II
for application to airframes and is used extensively by the military.
Dave Van Lanen
Madison, WI
601XL - Elevator
Time: 08:56:15 AM PST US
Subject: Zenith-List: Piano hinge lube
From: "Tim Juhl" <juhl@avci.net>
What is the consensus on the best lube for the piano hinges used on the
various
control surfaces of the XL. Cessna recommends graphite powder - Piper used
some
hinges where the pin was inside a teflon sleeve.
Comments?
Tim
Message 11
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| Subject: | Re: Airplane part |
Am I the only one that does not find any picture attached?
DO NOT ARCHIVE.
----- Original Message -----
From: robert stone
To: Zenith list
Sent: Wednesday, October 31, 2007 9:20 AM
Subject: Zenith-List: Airplane part
Members,
I was flying along fat, dumb, and happy when the part in the
attached picture fell out from behind the instrument panel. Can any of
you builders of the ZodiacXL tell me what this part is supposed to do
and where does it go???
Bob Stone
Harker Heights, Tx
ZodiacXL w/Jabiru 3300
Message 12
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| Subject: | Re: Airplane part |
Must have been a Stealth part.....I don't see it.
However, attached you will find a complete listing of all surnames in Michigan
ending in "ski".
Zed
heck no, do not archive
Message 13
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| Subject: | Re: Airplane part |
No.
Leo Gates
Robin Bellach wrote:
> Am I the only one that does not find any picture attached?
>
> DO NOT ARCHIVE.
Message 14
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| Subject: | Re: Airplane part |
Your picture must have got lost somewhere along the way.
On Oct 31, 2007, at 10:20 AM, robert stone wrote:
> Members,
> I was flying along fat, dumb, and happy when the part in the
> attached picture fell out from behind the instrument panel. Can
> any of you builders of the ZodiacXL tell me what this part is
> supposed to do and where does it go???
--
Bryan Martin
N61BM, CH 601 XL,
RAM Subaru, Stratus redrive.
do not archive.
Message 15
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| Subject: | Re: 601XL form blocks joggle and crimp cutouts |
I actually cracked one and had to remake the part. Be careful.
Jugle wrote:
> Forgive me if I'm getting a bit pedantic here, but I just want to be sure. Where
I've notched out the form blocks for the joggle for the spar and for the crimps
along the rib edges, do I need to round those edges off like the rest of
the block?
>
> I'm concerned that if I bash with a hammer and wooden block to follow those recesses
I might get some cracking... or is the bend shallow enough to cope?
>
> What have you done?
>
> Glenn.
--------
Andy Shontz
CH601XL - Corvair
www.mykitlog.com/ashontz
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=142954#142954
Message 16
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| Subject: | 601XL Project for Sale |
I am abandoning my 601XL project and would like to sell the fuselage kit
(includes the dual-stick option), plans & drawings, etc. Project is
located
in the Portland Oregon area. I have about $6000.00 into plans & kit
pieces.
I am asking $4000.00 OBO. If anyone is interested or knows of anyone
that might be, please email me or have them do so. I will consider any
reasonable offer.
Thanks,
Dan
Message 17
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| Subject: | re: streamline struts on 701 |
just put some streamline strut covering over them,you will gain about 10 mph,and
also put material over the jury stuts.
I would not remove the jury struts,they are added strength to the stuts,they and
rigidity to them and how many people have you seen get out of the airplane
and use the sturts as support,if you have ever seen that you would be amazed at
how much they move,those are they most important part to keep you in the air
and you dont want those to be flexing and fatiguing
Tracy
Message 18
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| Subject: | Piano hinged ailerons |
Is there a separate photo construction guide for the piano hinged ailerons?
I can't find it anywhere.
Hans van Riet
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=142988#142988
Message 19
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| Subject: | Piano hinged ailerons |
Hans,
As far as I know, there is no photo guide for the hinged aileron option. There
is a drawing that explains how to do it. If you need that, contact me directly
and I'll send it to you.
Jay in Dallas 601XL N2630J
"hansriet" <hansinla@mac.com> wrote:
>
>Is there a separate photo construction guide for the piano hinged ailerons?
>I can't find it anywhere.
>
>Hans van Riet
>
>
>Read this topic online here:
>
>http://forums.matronics.com/viewtopic.php?p=142988#142988
>
>
Message 20
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| Subject: | Re: 601XL form blocks joggle and crimp cutouts |
Hello Glenn,
I didn't round off the edges of the joggles and the crimps for
the main spars and didn't have any problems. I used MDF for
the form blocks, so it may have given a little bit, but with
the spring back for the flange I never got too sharp bends on
the crimps.
Regards,
Maarten
601XL plans building wings
> Time: 11:44:33 PM PST US
> Subject: Zenith-List: 601XL form blocks joggle and crimp cutouts
> From: "Jugle" <glenn@eastcoastit.net>
>
>
> Forgive me if I'm getting a bit pedantic here, but I just want to be sure. Where
> I've notched out the form blocks for the joggle for the spar and for the crimps
> along the rib edges, do I need to round those edges off like the rest of the
> block?
>
> I'm concerned that if I bash with a hammer and wooden block to follow those recesses
> I might get some cracking... or is the bend shallow enough to cope?
>
> What have you done?
>
> Glenn.
>
> --------
> Glenn Andressen
> 601XL- just started.
Message 21
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| Subject: | Piano hinged ailerons |
Hans
I built my wings with the hinged ailerons from the plans. If you have any
questions let me know and I'll try to answer them.
George May
601XL 912s 165hours
do not archive> Subject: Zenith-List: Piano hinged ailerons> From: hansinla
@mac.com> Date: Wed, 31 Oct 2007 13:21:52 -0700> To: zenith-list@matronics.
Is there a separate photo construction guide for the piano hinged ailerons?
> I can't find it anywhere.> > Hans van Riet> > > > > Read this topic onlin
e here:> > http://forums.matronics.com/viewtopic.php?p=142988#142988> > >
===============> > >
_________________________________________________________________
!
ilnews
Message 22
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| Subject: | Streamline Struts on a 701 |
Larry and others, I have designed a custom streamline extrusion for my
float attachments and for the Struts of the STOL aircraft. I will be
making Streamline Strut kits in the new year. The Jury struts will
remain to remove any chance of wing harmonics( flexing). On average,
this single step has improved cruise by 5 mph. The same can be achieved
by simply wrapping the round struts with .016 and solid riveting the
trailing edge. THE Magic # is 3-1 so for every inch in width add 3
inches in total length.
Mark Townsend
Can-Zac Aviation Ltd.
HYPERLINK
"mailto:president@can-zacaviation.com"president@can-zacaviation.com
HYPERLINK "http://www.can-zacaviation.com/"www.can-zacaviation.com
-----Original Message-----
From: owner-zenith-list-server@matronics.com
[mailto:owner-zenith-list-server@matronics.com] On Behalf Of LRM
Sent: Wednesday, October 31, 2007 8:32 AM
Subject: Zenith-List: Streamline Struts on a 701
A question for my learned fellow builders. Should one replace the round
tube struts on a 701 with streamline struts can the jury struts be
eliminated? If yes, why. If no, why.
Larry, www.SkyHawg.com, N1345L
"http://www.matronics.com/Navigator?Zenith-List"http://www.matronics.com
/Navigator?Zenith-List
"http://forums.matronics.com"http://forums.matronics.com
10/31/2007 10:06 AM
10/31/2007 10:06 AM
Message 23
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| Subject: | Re: 601XL form blocks joggle and crimp cutouts |
FYI
Here is a little different approach to putting the joggle in the rear wing ribs.
http://mykitlog.com/users/display_log.php?user=rlendon&project=113&category=0&log=23490&row=231
I didn't soften the crimps either, just ground them into the MDF and tapped em
home usng the Mark Townsend method (Metalworking 101 Homebuilt Help).
--------
Ron Lendon, Clinton Township, MI
Corvair Zodiac XL, ScrapBuilder ;-)
http://www.mykitlog.com/rlendon
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=143026#143026
Message 24
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| Subject: | Light Sport Recumbent Bike |
Taking a little airplane break and building the Larry McFarland recumbent. Have
it up on the kitlog site as another project.
Just wanted a change of pace for a little bit, I will be back on the airframe in
a few weeks.
--------
Ron Lendon, Clinton Township, MI
Corvair Zodiac XL, ScrapBuilder ;-)
http://www.mykitlog.com/rlendon
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=143027#143027
Message 25
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| Subject: | Re: Airplane part |
no me too..Joe N101HD
----- Original Message -----
From: Robin Bellach
To: zenith-list@matronics.com
Sent: Wednesday, October 31, 2007 10:44 AM
Subject: Re: Zenith-List: Airplane part
Am I the only one that does not find any picture attached?
DO NOT ARCHIVE.
----- Original Message -----
From: robert stone
To: Zenith list
Sent: Wednesday, October 31, 2007 9:20 AM
Subject: Zenith-List: Airplane part
Members,
I was flying along fat, dumb, and happy when the part in the
attached picture fell out from behind the instrument panel. Can any of
you builders of the ZodiacXL tell me what this part is supposed to do
and where does it go???
Bob Stone
Harker Heights, Tx
ZodiacXL w/Jabiru 3300
href="http://www.matronics.com/Navigator?Zenith-List">http://www.matron
href="http://forums.matronics.com">http://forums.matronics.com
Message 26
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| Subject: | Streamline Struts on a 701 |
> I was at Oshkosh and Michael said the same thing to
> me, wrap .016 and rivet the trailing edge...so thats
> what I will do......do not archive
--- ZodieRocket <zodierocket@hsfx.ca> wrote:
> Larry and others, I have designed a custom
> streamline extrusion for my
> float attachments and for the Struts of the STOL
> aircraft. I will be
> making Streamline Strut kits in the new year. The
> Jury struts will
> remain to remove any chance of wing harmonics(
> flexing). On average,
> this single step has improved cruise by 5 mph. The
> same can be achieved
> by simply wrapping the round struts with .016 and
> solid riveting the
> trailing edge. THE Magic # is 3-1 so for every inch
> in width add 3
> inches in total length.
>
> Mark Townsend
> Can-Zac Aviation Ltd.
> HYPERLINK
>
"mailto:president@can-zacaviation.com"president@can-zacaviation.com
> HYPERLINK
>
"http://www.can-zacaviation.com/"www.can-zacaviation.com
>
>
> -----Original Message-----
> From: owner-zenith-list-server@matronics.com
> [mailto:owner-zenith-list-server@matronics.com] On
> Behalf Of LRM
> Sent: Wednesday, October 31, 2007 8:32 AM
> To: zenith-list@matronics.com
> Subject: Zenith-List: Streamline Struts on a 701
>
> A question for my learned fellow builders. Should
> one replace the round
> tube struts on a 701 with streamline struts can the
> jury struts be
> eliminated? If yes, why. If no, why.
>
> Larry, www.SkyHawg.com, N1345L
>
>
>
"http://www.matronics.com/Navigator?Zenith-List"http://www.matronics.com
> /Navigator?Zenith-List
>
"http://forums.matronics.com"http://forums.matronics.com
>
>
> 10/31/2007 10:06 AM
>
>
> 10/31/2007 10:06 AM
>
>
__________________________________________________
Message 27
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I bought my plans second hand and just noticed there are some pages
missing to the "construction guide". Can I assume if it says "page 4 of
12" of a particular drawing number that I'm missing pages 1 thru 3. Do
I get those off of the CD or do I have to go to Zenith for replacements.
Blue Skies
Bob Unternaehrer
shilocom@mcmsys.com
Message 28
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Bob, have you filled out a change of ownership yet? IF so then send me a
copy and I will issue you the password to the builders resources
section. If not then I will send you some forms to fill out.
Mark Townsend
Can-Zac Aviation Ltd.
HYPERLINK
"mailto:president@can-zacaviation.com"president@can-zacaviation.com
HYPERLINK "http://www.can-zacaviation.com/"www.can-zacaviation.com
-----Original Message-----
From: owner-zenith-list-server@matronics.com
[mailto:owner-zenith-list-server@matronics.com] On Behalf Of Bob
Unternaehrer
Sent: Wednesday, October 31, 2007 7:10 PM
Subject: Zenith-List: Missing pages
I bought my plans second hand and just noticed there are some pages
missing to the "construction guide". Can I assume if it says "page 4 of
12" of a particular drawing number that I'm missing pages 1 thru 3. Do
I get those off of the CD or do I have to go to Zenith for replacements.
Blue Skies
Bob Unternaehrer
HYPERLINK "mailto:shilocom@mcmsys.com"shilocom@mcmsys.com
"http://www.matronics.com/Navigator?Zenith-List"http://www.matronics.com
/Navigator?Zenith-List
"http://forums.matronics.com"http://forums.matronics.com
10/31/2007 10:06 AM
10/31/2007 10:06 AM
Message 29
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If this is for an XL be aware the the photos in the photo guide CD are much
higher resolution than those in the ones you can access on Zenith's site.
-- Craig
Message 30
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| Subject: | Re: Streamline Struts on a 701 |
I'm not so sure I agree that the jury struts are needed if streamline
struts are used. My PegaStol wings only have streamline struts as does
the Savannah. Most wings that have streamline struts do not employ jury
struts. I know some highwings do use both streamline and jury struts,
but it is not the general rule. Perhaps jury struts are only needed to
stabilize the harmonics set up with round tubing whereas streamline
struts do not cause any such harmonics or vibration. Having now built
both the Zenith wing and PegaStol wing I don't think the Zenith wings
have a structure need for the jury struts, they simply keep the tubes
from humming and add unneeded weight and drag. Larry
----- Original Message -----
From: ZodieRocket
To: zenith-list@matronics.com
Sent: Wednesday, October 31, 2007 6:49 PM
Subject: RE: Zenith-List: Streamline Struts on a 701
Larry and others, I have designed a custom streamline extrusion for my
float attachments and for the Struts of the STOL aircraft. I will be
making Streamline Strut kits in the new year. The Jury struts will
remain to remove any chance of wing harmonics( flexing). On average,
this single step has improved cruise by 5 mph. The same can be achieved
by simply wrapping the round struts with .016 and solid riveting the
trailing edge. THE Magic # is 3-1 so for every inch in width add 3
inches in total length.
Mark Townsend
Can-Zac Aviation Ltd.
president@can-zacaviation.com
www.can-zacaviation.com
-----Original Message-----
From: owner-zenith-list-server@matronics.com
[mailto:owner-zenith-list-server@matronics.com] On Behalf Of LRM
Sent: Wednesday, October 31, 2007 8:32 AM
To: zenith-list@matronics.com
Subject: Zenith-List: Streamline Struts on a 701
A question for my learned fellow builders. Should one replace the
round tube struts on a 701 with streamline struts can the jury struts be
eliminated? If yes, why. If no, why.
Larry, www.SkyHawg.com, N1345L
- The Zenith-List Email Forum - -->
http://www.matronics.com/Navigator?Zenith-List - NEW
MATRONICS WEB FORUMS - --> http://forums.matronics.com
10/31/2007 10:06 AM
10/31/2007 10:06 AM
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10/31/2007 10:06 AM
Message 31
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| Subject: | Airmaster inflight adjustable prop hub |
Has anyone used an airmaster ap332 inflight adjustable prop on their 601
? Would be great to get your feedback, especially on an HD.
Otherwise, what have you found to be the best performing props using a
rotax engine..(mine is a 914.. 912s will be close)
Message 32
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| Subject: | Re: Streamline Struts on a 701 |
In a message dated 10/31/2007 10:04:50 P.M. Eastern Daylight Time,
lrm@skyhawg.com writes:
Having now built both the Zenith wing and PegaStol wing I don't think the
Zenith wings have a structure need for the jury struts, they simply keep the
tubes from humming and add unneeded weight and drag. Larry
Larry,
I can't remember where I read it but I believe the jury struts keep it from
humming as you said and also in a negative G condition they keep the struts
from bending. I have seen many ultralights that have removed their tube struts
and jury struts and replaced with only aluminum streamline struts. I put on
the plastic streamline struts over the tube struts and saw an 8mph increase
along with having to repitch the prop to keep from over revving. Could not
believe how much drag is caused by those tube struts.
Bob Spudis
N701ZX/ CH701/
140hrs
Message 33
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| Subject: | Streamline Struts on a 701 |
In my unprofessional opinion I believe you are right and maybe for my
type of flying they are not needed. However, they are little weight gain
and provide far more strength then you give them credit for, and with
that extra strength It may cover that fellow out there who fly=92s a lot
differently then either you or I do. I will leave the Jury Strut
decision to Chris Heintz. After all he knows a lot more then either of
us concerning the 701.
Plus all the Savanna=92s I have seen did add the jury strut after that
one
had an in-flight failure. It is one of there improvements.
Mark Townsend
Can-Zac Aviation Ltd.
HYPERLINK
"mailto:president@can-zacaviation.com"president@can-zacaviation.com
HYPERLINK "http://www.can-zacaviation.com/"www.can-zacaviation.com
-----Original Message-----
From: owner-zenith-list-server@matronics.com
[mailto:owner-zenith-list-server@matronics.com] On Behalf Of LRM
Sent: Wednesday, October 31, 2007 9:00 PM
Subject: Re: Zenith-List: Streamline Struts on a 701
I'm not so sure I agree that the jury struts are needed if streamline
struts are used. My PegaStol wings only have streamline struts as does
the Savannah. Most wings that have streamline struts do not employ jury
struts. I know some highwings do use both streamline and jury struts,
but it is not the general rule. Perhaps jury struts are only needed to
stabilize the harmonics set up with round tubing whereas streamline
struts do not cause any such harmonics or vibration. Having now built
both the Zenith wing and PegaStol wing I don't think the Zenith wings
have a structure need for the jury struts, they simply keep the tubes
from humming and add unneeded weight and drag. Larry
----- Original Message -----
From: HYPERLINK "mailto:zodierocket@hsfx.ca"ZodieRocket
"mailto:zenith-list@matronics.com"zenith-list@matronics.com
Sent: Wednesday, October 31, 2007 6:49 PM
Subject: RE: Zenith-List: Streamline Struts on a 701
Larry and others, I have designed a custom streamline extrusion for my
float attachments and for the Struts of the STOL aircraft. I will be
making Streamline Strut kits in the new year. The Jury struts will
remain to remove any chance of wing harmonics( flexing). On average,
this single step has improved cruise by 5 mph. The same can be achieved
by simply wrapping the round struts with .016 and solid riveting the
trailing edge. THE Magic # is 3-1 so for every inch in width add 3
inches in total length.
Mark Townsend
Can-Zac Aviation Ltd.
HYPERLINK
"mailto:president@can-zacaviation.com"president@can-zacaviation.com
HYPERLINK "http://www.can-zacaviation.com/"www.can-zacaviation.com
-----Original Message-----
From: owner-zenith-list-server@matronics.com
[mailto:owner-zenith-list-server@matronics.com] On Behalf Of LRM
Sent: Wednesday, October 31, 2007 8:32 AM
Subject: Zenith-List: Streamline Struts on a 701
A question for my learned fellow builders. Should one replace the round
tube struts on a 701 with streamline struts can the jury struts be
eliminated? If yes, why. If no, why.
Larry, www.SkyHawg.com, N1345L
- The Zenith-List Email Forum -
--> HYPERLINK
"http://www.matronics.com/Navigator?Zenith-List"http://www.matronics.com
/Navigator?Zenith-List
- NEW MATRONICS WEB FORUMS -
--> HYPERLINK
"http://forums.matronics.com"http://forums.matronics.com
10/31/2007 10:06 AM
10/31/2007 10:06 AM
href="http://www.matronics.com/Navigator?Zenith-List">http://www.matron
h
ref="http://forums.matronics.com">http://forums.matronics.com
_____
Release Date: 10/31/2007 10:06 AM
"http://www.matronics.com/Navigator?Zenith-List"http://www.matronics.com
/Navigator?Zenith-List
"http://forums.matronics.com"http://forums.matronics.com
10/31/2007 10:06 AM
10/31/2007 10:06 AM
Message 34
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| Subject: | Re: Missing pages |
I have the CD but haven't looked at it yet. A quick look through the
picture book and there seems to be only 3 pages missing. All 8 pages
6-B-10 seemed to be all numbered wrong. Page 1 says 1 of 1 and page 2
says 2 of 2 etc thru 8 pages. Bob U.
----- Original Message -----
From: Craig Payne
To: zenith-list@matronics.com
Sent: Wednesday, October 31, 2007 7:32 PM
Subject: RE: Zenith-List: Missing pages
If this is for an XL be aware the the photos in the photo guide CD are
much higher resolution than those in the ones you can access on Zenith's
site.
-- Craig
Message 35
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| Subject: | Re: Missing pages |
I have filled out the change of ownership forms and sent to Mexico and
have the username and password for the BR section. Bob U.
----- Original Message -----
From: ZodieRocket
To: zenith-list@matronics.com
Sent: Wednesday, October 31, 2007 8:24 PM
Subject: RE: Zenith-List: Missing pages
Bob, have you filled out a change of ownership yet? IF so then send me
a copy and I will issue you the password to the builders resources
section. If not then I will send you some forms to fill out.
Mark Townsend
Can-Zac Aviation Ltd.
president@can-zacaviation.com
www.can-zacaviation.com
-----Original Message-----
From: owner-zenith-list-server@matronics.com
[mailto:owner-zenith-list-server@matronics.com] On Behalf Of Bob
Unternaehrer
Sent: Wednesday, October 31, 2007 7:10 PM
To: Zenith List
Subject: Zenith-List: Missing pages
I bought my plans second hand and just noticed there are some pages
missing to the "construction guide". Can I assume if it says "page 4 of
12" of a particular drawing number that I'm missing pages 1 thru 3. Do
I get those off of the CD or do I have to go to Zenith for replacements.
Blue Skies
Bob Unternaehrer
shilocom@mcmsys.com
href="http://www.matronics.com/Navigator?Zenith-List">http://www.matron
href="http://forums.matronics.com">http://forums.matronics.com
10/31/2007 10:06 AM
10/31/2007 10:06 AM
Message 36
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| Subject: | Re: Streamline Struts on a 701 |
Doesn't anyone out there understand that the purpose of the jury strut is t
o stabilize the wing strut in buckling? During any intentional or unintenti
onal negative G excursions, the strut wants to bend/buckle. The jury strut
(while usually pretty flimsy) effectively holds that instability off to a M
UCH greater load.=0A=0AEven if the design does not require them, they are d
esirable for that reason alone.=0A=0ADave Downey=0AHarleysville (SE) PA=0A1
00 HP Corvair=0A=0A=0A=0A----- Original Message ----=0AFrom: LRM <lrm@skyha
wg.com>=0ATo: zenith-list@matronics.com=0ASent: Wednesday, October 31, 2007
6:59:38 PM=0ASubject: Re: Zenith-List: Streamline Struts on a 701=0A=0A=0A
I'm not so sure I agree that the jury struts are needed if streamline strut
s are used. My PegaStol wings only have streamline struts as does the Sava
nnah. Most wings that have streamline struts do not employ jury struts. I
know some highwings do use both streamline and jury struts, but it is not
the general rule. Perhaps jury struts are only needed to stabilize the har
monics set up with round tubing whereas streamline struts do not cause any
such harmonics or vibration. Having now built both the Zenith wing and Pe
gaStol wing I don't think the Zenith wings have a structure need for the ju
ry struts, they simply keep the tubes from humming and add unneeded weight
and drag. Larry=0A----- Original Message ----- =0AFrom: ZodieRocket =0ATo:
zenith-list@matronics.com =0ASent: Wednesday, October 31, 2007 6:49 PM=0AS
ubject: RE: Zenith-List: Streamline Struts on a 701=0A=0A=0ALarry and other
s, I have designed a custom streamline extrusion for my float attachments a
nd for the Struts of the STOL aircraft. I will be making Streamline Strut k
its in the new year. The Jury struts will remain to remove any chance of wi
ng harmonics( flexing). On average, this single step has improved cruise by
5 mph. The same can be achieved by simply wrapping the round struts with .
016 and solid riveting the trailing edge. THE Magic # is 3-1 so for every i
nch in width add 3 inches in total length.=0A =0AMark Townsend=0ACan-Zac Av
iation Ltd.=0Apresident@can-zacaviation.com=0Awww.can-zacaviation.com =0A
=0A-----Original Message-----=0AFrom: owner-zenith-list-server@matronics.co
m [mailto:owner-zenith-list-server@matronics.com] On Behalf Of LRM=0ASent:
Wednesday, October 31, 2007 8:32 AM=0ATo: zenith-list@matronics.com=0ASubje
ct: Zenith-List: Streamline Struts on a 701=0A =0AA question for my learned
fellow builders. Should one replace the round tube struts on a 701 with s
treamline struts can the jury struts be eliminated? If yes, why. If no, w
hy. =0A =0ALarry, www.SkyHawg.com, N1345L=0A =0A =0A=0A - The Z
enith-List Email Forum -=0A=0A=0A=0A=0A --> http://www.matronics.com/Navi
gator?Zenith-List=0A=0A - NEW MATRONICS WEB FORUMS -=0A=0A -
-> http://forums.matronics.com=0A=0A =0A=0A10/31/2007 10:06 AM=0A=0A=0A10/
31/2007 10:06 AM=0A=0A=0A=0Ahref="http://www.matronics.com/Navigator?Zeni
th-List">http://www.matronhref="http://forums.matronics.com">http://forum
s.matronics.com=0A=0A=0A=0A=0ARelease Date: 10/31/2007 10:06 AM=0A=0A=0A=0A
=========================0A
l.yahoo.com
Message 37
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| Subject: | Re: Streamline Struts on a 701 |
Dave:
Speaking as a (retired) aeronautical engineer, I second your comments,
though I take some exception to your last sentence. Given that Chris
Heintz is a professional designer, I'm sure the 701 does require the
jury struts. Otherwise he wouldn't have accepted the complexity,
weight, drag and cost. The alternative would have been a larger
diameter or heavier-walled strut to get the same resistance to buckling
under a compression load. It is not a question of vibration nor some
property of streamline tubing as such. The fact that some other design
doesn't employ jury struts means that the other designer has chosen a
different solution to providing the necessary compression strength.
If the increase in cruise speed seems worth the effort a streamline
fairing for the strut seems a good solution.
George Swinford.
----- Original Message -----
From: David Downey
To: zenith-list@matronics.com
Sent: Wednesday, October 31, 2007 6:51 PM
Subject: Re: Zenith-List: Streamline Struts on a 701
Doesn't anyone out there understand that the purpose of the jury strut
is to stabilize the wing strut in buckling? During any intentional or
unintentional negative G excursions, the strut wants to bend/buckle. The
jury strut (while usually pretty flimsy) effectively holds that
instability off to a MUCH greater load.
Even if the design does not require them, they are desirable for that
reason alone.
Dave Downey
Harleysville (SE) PA
100 HP Corvair
----- Original Message ----
From: LRM <lrm@skyhawg.com>
To: zenith-list@matronics.com
Sent: Wednesday, October 31, 2007 6:59:38 PM
Subject: Re: Zenith-List: Streamline Struts on a 701
I'm not so sure I agree that the jury struts are needed if streamline
struts are used. My PegaStol wings only have streamline struts as does
the Savannah. Most wings that have streamline struts do not employ jury
struts. I know some highwings do use both streamline and jury struts,
but it is not the general rule. Perhaps jury struts are only needed to
stabilize the harmonics set up with round tubing whereas streamline
struts do not cause any such harmonics or vibration. Having now built
both the Zenith wing and PegaStol wing I don't think the Zenith wings
have a structure need for the jury struts, they simply keep the tubes
from humming and add unneeded weight and drag. Larry
----- Original Message -----
From: ZodieRocket
To: zenith-list@matronics.com
Sent: Wednesday, October 31, 2007 6:49 PM
Subject: RE: Zenith-List: Streamline Struts on a 701
Larry and others, I have designed a custom streamline extrusion for
my float attachments and for the Struts of the STOL aircraft. I will be
making Streamline Strut kits in the new year. The Jury struts will
remain to remove any chance of wing harmonics( flexing). On average,
this single step has improved cruise by 5 mph. The same can be achieved
by simply wrapping the round struts with .016 and solid riveting the
trailing edge. THE Magic # is 3-1 so for every inch in width add 3
inches in total length.
Mark Townsend
Can-Zac Aviation Ltd.
president@can-zacaviation.com
www.can-zacaviation.com
-----Original Message-----
From: owner-zenith-list-server@matronics.com
[mailto:owner-zenith-list-server@matronics.com] On Behalf Of LRM
Sent: Wednesday, October 31, 2007 8:32 AM
To: zenith-list@matronics.com
Subject: Zenith-List: Streamline Struts on a 701
A question for my learned fellow builders. Should one replace the
round tube struts on a 701 with streamline struts can the jury struts be
eliminated? If yes, why. If no, why.
Larry, www.SkyHawg.com, N1345L
- The Zenith-List Email Forum - -->
http://www.matronics.com/Navigator?Zenith-List - NEW
MATRONICS WEB FORUMS - --> http://forums.matronics.com
10/31/2007 10:06 AM
10/31/2007 10:06 AM
href="http://www.matronics.com/Navigator?Zenith-List">http://www.matron
href="http://forums.matronics.com">http://forums.matronics.com
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