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grantc(at)ca.inter.net
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 Posted: Fri Mar 10, 2006 6:31 am Post subject: Zenith-List Digest: 36 Msgs - 03/09/06 |
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| Quote: | ... Who has some ideas that we who are
actually flying XLs can employ to make our birds more safe this weekend ?
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I appreciate your stress, but I humbly submit that the best thing you or I
or anyone can do is to ensure that the part that rests in our hands is done
properly:
- Did I the builder follow the plans and use good building practices?
- Have I the 'maintenance guy' been following good mtce. procedures?
- Have I the pilot, maintained my own competency and health standards?
- Did I the pilot do the proper pre-flight inspection?
- Am I the pilot following good flying practices within the design specs of
the airplane?
IF all responses = YES, go fly and enjoy.
In any CH601 version, chances of an accident happening due to reasons not
covered by these items are minimal. imo
--
Grant Corriveau
C-GHTF / HDS / CAM100
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bluedog(at)ak.net
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| Posted: Fri Mar 10, 2006 10:43 am Post subject: Zenith-List Digest: 36 Msgs - 03/09/06 |
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I'm new to the list but was wondering..
Why dont he advertizer's on this list set up a page where they can put
there info and links rather than trying to hawk there wares when the
people are trying to get answers to their questions.
that wld save time for everyone..
BR
==========
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EMail Version of Today's List Digest Archive
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Zenith-List Digest Archive
---
Total Messages Posted Thu 03/09/06: 36
Today's Message Index:
----------------------
1. 05:01 AM - Re: Tach problem (Zed Smith)
2. 05:01 AM - Re: Aileron Trim (Michel Therrien)
3. 06:58 AM - Re: Unstable Tach (Hinde, Frank George (Corvallis))
4. 08:11 AM - Re: Franklin Engines? (shilocom(at)mcmsys.com)
5. 08:48 AM - Re: Stabilizer Skin (Chuck & Lana Maggart)
6. 10:21 AM - Re: Franklin Engines (John Anderson)
7. 11:14 AM - Drilling plastic lens (Don Mountain)
8. 11:22 AM - Re: Franklin Engines (Don Mountain)
9. 11:30 AM - Re: Drilling plastic lens (BrownTool(at)aol.com)
10. 11:35 AM - Re: Drilling plastic lens (Hinde, Frank George (Corvallis))
11. 12:04 PM - Re: Drilling plastic lens (Robert Schoenberger)
12. 12:47 PM - Re: Drilling plastic lens (Randy L. Thwing)
13. 01:44 PM - Re: Drilling plastic lens (cgalley)
14. 01:48 PM - Re: Drilling plastic lens ()
15. 01:57 PM - Re: Drilling plastic lens (Geoff Heap)
16. 03:23 PM - Insurance (Chuck Deiterich)
17. 04:19 PM - Re: Tragic Accident - more stupid conjecture. (Bill+Rose)
18. 04:19 PM - Re: Franklin Engines? (Bill+Rose)
19. 04:45 PM - Re: Franklin Engines? (n801bh(at)netzero.com)
20. 06:09 PM - Re: Tragic Accident - more stupid conjecture. (LarryMcFarland)
21. 06:52 PM - Re: Unstable Tach (Tim & Diane Shankland)
22. 07:35 PM - Re: Tragic Accident - more stupid conjecture. (Mike Sinclair)
23. 07:35 PM - Re: Franklin Engines? (Randy L. Thwing)
24. 08:36 PM - Re: Tragic Accident - more stupid conjecture. (JAPhillipsGA(at)aol.com)
25. 08:36 PM - Re: Tragic Accident - more stupid conjecture. (Thilo Kind)
26. 08:39 PM - Re: Franklin Engines? (Jimbo)
27. 09:13 PM - Crimping tool (LHusky(at)aol.com)
28. 09:32 PM - Re: Crimping tool (Zodie Rocket)
29. 09:49 PM - Re: Crimping tool (Paul Mulwitz)
30. 09:49 PM - Re: Tragic Accident - more stupid conjecture. (Zodie Rocket)
31. 10:01 PM - Re: Crimping tool (Zodie Rocket)
32. 10:01 PM - Re: Tragic Accident - more stupid conjecture. (Gary Gower)
33. 10:10 PM - Re: Crimping tool (LHusky(at)aol.com)
34. 10:19 PM - Re: Tragic Accident - more stupid conjecture. (Mike Sinclair)
35. 10:32 PM - crimping tool (George Swinford)
36. 11:52 PM - Re: Tragic Accident - more stupid conjecture. (Thilo Kind)
________________________________ Message 1 _____________________________________
Time: 05:01:54 AM PST US
From: Zed Smith <zsmith3rd(at)earthlink.net>
Subject: Re: Tach problem
This may NOT be a cure.
A previous installation of my 912 had a tach problem....found that the bundle of
wire from engine to firewall, including Oil Temp, Oil Press, CHT, Tach, etc,
was "near" the top left rear spark plug wire. "Near" in this case was about
3mm (three millimeters), a mistake by the builder.
There was enough induced voltage from the plug wire, at various RPM settings, to
interfere with the AC being sent to the tach that the whole mess was totally
un-reliable. The pulses to the plug added "extra" pulses to the tach leads,
or were exactly in phase at times and had a cancelling effect on the tach pulses.
Whatever. It didn't work.
Moved/separated stuff in the bundle. Cured the problem.
All cases are different, results not typical, batteries not included, some assembly
required, consult your doctor.
do not archive
Regards,
Zed/701/912/905/etc
________________________________ Message 2 _____________________________________
Time: 05:01:54 AM PST US
From: Michel Therrien <mtherr(at)yahoo.com>
Subject: Re: Aileron Trim
I don't have measurements, but I describe how I did on
my website. I made a mockup aileron to test various
installations before making an opening in my aileron.
http://mthobby.pcperfect.com/ch601/chowings4.htm
The tab is effective for the purpose you identified,
but the airplane should be fairly balanced first (it
is not enough effective to correct major balance
problems and you probably do not want to use too much
aileron deflection just for keeping the plane
straight).
>From my picture, it appears the tab is 420 mm wide.
I do believe that the tab will be more effective if
installed inboard of the wing than at the outboard end
of the wing. The tab acts to move the aileron up or
down, not the wing. I think that if installed at the
outboard end, the tab has more power to act on the
position of the wing (arm) while it does have the same
effect on the aileron than if it is on the inboard end
(more cancellation of effect). But, this being said,
I'm not an ingineer... Real ingineers, you're welcome
to shoot or support this therory!
Michel
PS: I also had a heavy left wing problem. I corrected
it by making a new rear spar attachment plate on which
I offset the hole. The new plate was matched drilled
with the old plate installed on a drilling jig (a
piece of plywood with two guides at 90 degrees). It
took a long evening to remove the wing, remove the
rear plate, drill a new plate, install it, and
readjust the incidence of the wing root fairing
(remove rivets, position, redrill, install a few
additional rivets.)
To check the incidence, I attached plastic blocs on a
level. On each bloc, I tapped holes and installed
screws. The front bloc fits under the front spar.
The rear bloc fits under the rear spar. By adjusting
the screws to get the level straight on one wing, I
was able to compare the level of the second wing. I
was also able to confirm that there is no twist in the
wings. It is also easy to calculate the exact
incidence of the wing (calculate the height difference
of the screws, consider the height of the rear spar
relative to the front spar - from the rib template,
apply sinus law or something like that).
--- john H <professor71(at)hotmail.com> wrote:
>
><professor71(at)hotmail.com>
>
>Hi List
>I am going to retrofit my 601HHD with an aileron
>trim to balance out my
>heavy left wing when flying solo. Does anyone have
>drawings as how to do
>this? I will be using the RAC servo with external
>trim tab. Was wondering
>how far back from the trailing edge to mount the
>servo? Left or right wing
>preference? Size of the trim tab and any other
>helpful info and drawings.
>
>Thanks
>John
>browse
>Subscriptions page,
>FAQ,
>http://www.matronics.com/Navigator?Zenith-List
>
>Admin.
>
>
>
>
>
>
>
>
>
----------------------------
Michel Therrien CH601-HD, C-GZGQ
http://mthobby.pcperfect.com/ch601
http://www.zenithair.com/bldrlist/profiles/mthobby
http://pages.infinit.net/mthobby
________________________________ Message 3 _____________________________________
Time: 06:58:58 AM PST US
Subject: RE: Unstable Tach
From: "Hinde, Frank George (Corvallis)" <frank.hinde(at)hp.com>
Sometimes (quite often actually) the coils go bad (low resisatnce on the
primary side...It usually frys the $300 ignitor chip too so you need to
check this out before your next flight).
I could how this might cause it...Check your primary coil resistance,
should be about 1.1 ohms I believe.
Try swapping just the coils and see if the problem follows the coil.
Frank
--
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bryanmmartin
Joined: 10 Jan 2006
Posts: 1018
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| Posted: Fri Mar 10, 2006 1:25 pm Post subject: Zenith-List Digest: 36 Msgs - 03/09/06 |
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Another thing that can save a lot of time for other list readers (especially
those who receive the digest version) is to trim the quoted text in your
replies to leave just enough information to identify what you are replying
to instead of quoting the entire daily digest. 
--
Bryan Martin
N61BM, CH 601 XL, Stratus Subaru.
do not archive.
on 3/10/06 1:41 PM, Blueraven at bluedog(at)ak.net wrote:
| Quote: |
I'm new to the list but was wondering..
Why dont he advertizer's on this list set up a page where they can put
there info and links rather than trying to hawk there wares when the
people are trying to get answers to their questions.
that wld save time for everyone..
BR
==========
|
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_________________
--
Bryan Martin
N61BM, CH 601 XL, Stratus Subaru.
do not archive. |
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rspritchard(at)earthlink.
Guest
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| Posted: Sat Mar 11, 2006 6:56 am Post subject: Zenith-List Digest: 36 Msgs - 03/09/06 |
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BR,
I have been on this list a long time and I appreciate the restrained
"advertising", mostly from fellow builders on this list.
Roger
--
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