Today's Message Index:
----------------------
1. 06:39 AM - Re: Strobe wires. (Noel Loveys)
2. 07:07 AM - Re: Steering rod seal (LarryMcFarland)
3. 07:37 AM - Re: Re: Stripper_FINAL! (Bill Naumuk)
4. 08:59 AM - Re: Steering rod seal (lgingell)
5. 09:26 AM - Strobe wiring reality check. (Paul Mulwitz)
6. 09:51 AM - Re: Re: Steering rod seal (Jaybannist@cs.com)
7. 10:02 AM - CO Monitor (Chuck Deiterich)
8. 10:16 AM - Re: Throttle Cable for Rotax (Tommy Walker)
9. 05:43 PM - Jab 3300 CHT Update (JAPhillipsGA@aol.com)
10. 05:48 PM - Re: Strobe wiring reality check. (Noel Loveys)
11. 06:58 PM - Re: Jab 3300 CHT Update (ron dewees)
12. 08:25 PM - FLying 601's (Zodie Rocket)
13. 09:28 PM - Re: Craftsman Drill Press sale (Gary Gower)
14. 09:44 PM - Re: Zenair for sale (rwhall@telusplanet.net)
Message 1
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--> Zenith-List message posted by: "Noel Loveys" <noelloveys@yahoo.ca>
Re weight on wingtips:
How about how having weight at the wing tips in relationship to spin
characteristics. Also...In the case of wing tip tanks how about if one tank
is full and the other is three quarters full???
Re: flasher unit installation
Now days the flasher units are getting down to mere ounces and if your wing
design will allow you to install and service without the use of a crowbar
the outboard weight would be insignificant.
Noel
> -----Original Message-----
> From: owner-zenith-list-server@matronics.com
> [mailto:owner-zenith-list-server@matronics.com] On Behalf Of
> Frank Stutzman
> Sent: Saturday, September 09, 2006 9:07 PM
> To: zenith-list@matronics.com
> Subject: RE: Zenith-List: Strobe wires.
>
>
> --> Zenith-List message posted by: Frank Stutzman
> <stutzman@stutzman.com>
>
> On Sat, 9 Sep 2006, Roger Venables wrote:
>
>
> > The advice that made the most sense to me was to mount the
> power supplies in
> > the fuselage (behind the seats in the 701) and run shielded
> cable from here
> > out to the strobes on the wing tips
> >
> > This has 2 main advantages, 1. it makes it easier to
> maintain/replace the
> > power supplies, and 2. it takes the weight out of the wing
> tips and puts it
> > lower down in the fuselage
>
> Well, I don't think I disagree, but here is an opposing point of view
> anyway ;-)
>
> If you are going to add weight to a plane, the wing tips
> arn't such bad
> places (within reason). One simple reason is that usually puts that
> weight right on the longitudal center of gravity. Another is
> that putting
> the weight out there reduces the bending moment of the wing.
> Notice all
> the planes with after market tip tanks? Those STCs also
> usually include a
> gross weight increase that stipulates that any weight over
> the original
> gross weight must be carried in fuel in those tip tanks. Yet another
> reason is that some strobe power supplies generate rf noise that isn't
> always easy to shield and putting those supplies out on the tips can
> mitigate this problem to a bit.
>
> Your point about ease of maintenace is very valid, but I've seen some
> clever access panels done on the tips of a 701.
>
> Frank Stutzman
> Bonanza N494B "Hula Girl"
> Hood River, OR
>
>
>
>
>
>
Message 2
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| Subject: | Re: Steering rod seal |
--> Zenith-List message posted by: LarryMcFarland <larry@macsmachine.com>
Jay,
I made a couple of slider assemblies in which the center plate has a
grommet that slides on the steering rods. The center plate moves within
the two slotted
plates and offers sufficient movement and sealing that cold air in
winter cannot be felt nor does it impede movement of the rods. Very
simple and two bolt assembly.
see links,
http://www.macsmachine.com/images/controllinkages/full/steer-rod-air-barrier.gif
http://www.macsmachine.com/images/controllinkages/full/steer-rod-air-barrier-2.gif
A little goop around the periphery of the attachment keeps it sealed at
the firewall.
Larry McFarland - 601HDS at www.macsmachine.com
Jaybannist@cs.com wrote:
> I am at the point of sealing the slots in the firewall (gravanized
> steel) for the steering rods, against air leakage and fire. I'm sure
> someone has solved this. There has been a lot of chatter about Honda
> boots, but that doesn't appeal to me.
>
> I am also concerned about the effect of the threads on any seal. Has
> anyone ground down the threads to make the rods smooth in the vicinity
> of the slots?
>
> By the way, the dimensions shown on the drawings for the slots are
> wrong. The rods are thicker than the width shown for the slots and
> the slots are much taller than required for the travel of the nose
> gear strut.
>
> Jay in Dallas, working on XL fuselage N2620J
>
>*
>
>
>*
>
Message 3
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| Subject: | Re: Stripper_FINAL! |
All-
I didn't just lighten up, I brightened up. As a matter of fact, I'm
positively ecstatic! The simplest solution to my problem isn't to strip
the crud off, but to polish it off. Read the ACS review of Nushine- it's
the fix if it performs as well as described. A lot less messy and
cheaper than stripping to boot.
Now there's an oxymoron for you- "Cheap stripper". She might be
cheap, but she doesn't come cheap!
do not archive
Bill Naumuk
HDS Fuselage
Townville, Pa
----- Original Message -----
From: NYTerminat@aol.com
To: zenith-list@matronics.com
Sent: Saturday, September 09, 2006 11:45 PM
Subject: Re: Zenith-List: Re: Stripper
Lighten up!!!!!!!!!!!
Message 4
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| Subject: | Re: Steering rod seal |
--> Zenith-List message posted by: "lgingell" <lgingell@matrix-logic.com>
I filled the threads on the rods with JBWeld and smoothed them out that way. It
was quick, and works.
..lance
http://lancegingell.com/plane.asp
--------
Zodiac XL/Jab 3300
http://lancegingell.com/plane.asp
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=60782#60782
Message 5
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| Subject: | Strobe wiring reality check. |
--> Zenith-List message posted by: Paul Mulwitz <p.mulwitz@worldnet.att.net>
With all the differing opinions on the conductivity of aluminum and
copper, I decided to do a little research and calculations to try to
come up with a fair analysis of this issue.
First, I found a nice web page that tells the actual story about
resistivity of aluminum and copper. It is:
http://www.schoolscience.co.uk/content/5/physics/copper/copelech2pg1.html
It shows copper is a better conductor than aluminum (which we all
knew already) but also tells how much better. It turns out the ratio
is only 3.2 /1.7 which means the cross section of an aluminum wire
needs to be 1.88 times larger in area to have the same resistance as
a copper wire. (This didn't surprise me a lot since I already knew
aluminum wire is commonly used for house wiring and for long distance
high voltage transmission lines.)
I went out to my shop and did a few measurements to see how large a
copper wire would have to be to have the same resistance as the
aluminum in my wing. The short answer is the aluminum wing is
roughly equivalent to a wire with a diameter of 59.5 mm. An
equivalent copper wire would have to be only 43.4 mm in diameter to
have the same resistance. (I will spare the list the math, anyone
wanting the details can send me an off-list email and I will send the
spreadsheet.)
Tying it all together, my calculations show it would take a copper
wire 43.4 mm in diameter to have the same electrical property
(resistance) as the wing does. This would be a really heavy ground
wire to string the length of the wing.
Caveats: For this to work, the power supply must be mounted in the
wing tip. Also, it assumes good contact between the skin and spar
which might not be the case if there is anti-corrosion paint used in
the joints. Also, I wouldn't use this method if the power supply for
the strobe was mounted in the fuselage since the voltage carried in
the wires is much higher than the 12V going to the power supply.
Paul
XL fuselage
--
Message 6
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| Subject: | Re: Steering rod seal |
Lance, VERY good suggestion! Wish I had thought of it. Definitely beats
grinding the threads down.
Thanks - Jay In Dallas
Do not archive
Message 7
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Some time ago, someone mentioned getting a Kidde Nighthawk carbon
monoxide monitor Model number KN-COPP-B. I got one from ebay for $20 +
$10 shipping. Works great. I used velcro to mount it on the right
fuselage side (CH701) near the shoulder strap anchor, where I can see
and reach it in flight. It displays 30 ppm or greater, but stores peak
level from 11 ppm up. After landing, I checked the peak and it was 13
ppm. ( This was my first flight with it.) It will be interesting to
see the peak after each flight.
Chuck D.
N701TX
Message 8
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| Subject: | Re: Throttle Cable for Rotax |
--> Zenith-List message posted by: "Tommy Walker" <twalker@cableone.net>
Johann,
I sent email, but I'm not sure you got it, so I will reply here. I would sure
like to have the part. I can send you a check, just let me know.
My Address:
Tommy Walker
28 Old Coach Road
Anniston, AL 36207
Ph. 256-835-6610
email: twalker(at) cableone.net
Johann G. Johannsson wrote:
> Hello Tommy.
>
> I used the Vernier throttle from ACS wit the solid wire end, A820 on both sides.
I started with the throttle on the left side, and then decided to install
it on both sides, because it was the perfect setup.
> The old T from Zenith is still on the right side in the picture on my home page.
> Did not like that long stick because it was hard to control.
> If you need the part to attatch the cable to the steel rod, I could send it to
you. Just contact me off list with your address, and I will ship it to you.
>
> Best regards,
> Johann G.
> Iceland.
--------
Tommy Walker
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=60795#60795
Message 9
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| Subject: | Jab 3300 CHT Update |
Dear Thread Friends, After so many fellows have helped my battle with the CHT
monster and having been so disappointed in progress so many times I felt I
needed to report that the dragon is dead and the CHTs have gone down and are
stable. I flew her very hard today in 90 + heat and No. 4 stabilized at about 270
degrees. That is down from 340 degrees only a couple weeks ago. I owe a bunch
to Ron, Fred, Jim, Harold, Derrick, Gene, Neil and a couple other guys that
came by, drank my beer and offered opinions, and anybody else that ever told
them anything about air ducting and cooling airplane engines. You guys will
never have to buy a beer if I'm anywhere around !
Best regards, Bill of Georgia
N505WP
601XL-3300
Message 10
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| Subject: | Strobe wiring reality check. |
--> Zenith-List message posted by: "Noel Loveys" <noelloveys@yahoo.ca>
Aluminium cable is used on larger commercial liners for longer high voltage
runs something in the order of 400V@ 100Hz. I don't think there is any Al
used for smaller apps. As for the wing tip strobes they are getting light
enough to be installed in the wingtips with no appreciable degradation of
the aircraft handling characteristics. Grounding of the lights themselves
is a non issue as they are regularly being installed in composite wings and
composite fairings on fling wings. Older heavier units can be safely
installed closer to the wing roots and wired with the appropriate wire. As
with all things RTFM ( Read the Funny Manual)
BTW the working voltage is close to 13.8V, rounded up that's 14V. The
battery will actually provide less than 12V
Noel
> -----Original Message-----
> From: owner-zenith-list-server@matronics.com
> [mailto:owner-zenith-list-server@matronics.com] On Behalf Of
> Paul Mulwitz
> Sent: Sunday, September 10, 2006 1:53 PM
> To: zenith-list@matronics.com
> Subject: Zenith-List: Strobe wiring reality check.
>
>
> --> Zenith-List message posted by: Paul Mulwitz
> <p.mulwitz@worldnet.att.net>
>
> With all the differing opinions on the conductivity of aluminum and
> copper, I decided to do a little research and calculations to try to
> come up with a fair analysis of this issue.
>
> First, I found a nice web page that tells the actual story about
> resistivity of aluminum and copper. It is:
> http://www.schoolscience.co.uk/content/5/physics/copper/copele
> ch2pg1.html
>
> It shows copper is a better conductor than aluminum (which we all
> knew already) but also tells how much better. It turns out the ratio
> is only 3.2 /1.7 which means the cross section of an aluminum wire
> needs to be 1.88 times larger in area to have the same resistance as
> a copper wire. (This didn't surprise me a lot since I already knew
> aluminum wire is commonly used for house wiring and for long distance
> high voltage transmission lines.)
>
> I went out to my shop and did a few measurements to see how large a
> copper wire would have to be to have the same resistance as the
> aluminum in my wing. The short answer is the aluminum wing is
> roughly equivalent to a wire with a diameter of 59.5 mm. An
> equivalent copper wire would have to be only 43.4 mm in diameter to
> have the same resistance. (I will spare the list the math, anyone
> wanting the details can send me an off-list email and I will send the
> spreadsheet.)
>
> Tying it all together, my calculations show it would take a copper
> wire 43.4 mm in diameter to have the same electrical property
> (resistance) as the wing does. This would be a really heavy ground
> wire to string the length of the wing.
>
> Caveats: For this to work, the power supply must be mounted in the
> wing tip. Also, it assumes good contact between the skin and spar
> which might not be the case if there is anti-corrosion paint used in
> the joints. Also, I wouldn't use this method if the power supply for
> the strobe was mounted in the fuselage since the voltage carried in
> the wires is much higher than the 12V going to the power supply.
>
> Paul
> XL fuselage
>
>
> --
>
>
>
>
>
>
Message 11
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| Subject: | Re: Jab 3300 CHT Update |
--> Zenith-List message posted by: ron dewees <rdewees@mindspring.com>
I need directions to your hangar and a taxi to the bar!!!
Congratulations again!
Ron
JAPhillipsGA@aol.com wrote:
> Dear Thread Friends, After so many fellows have helped my battle with
> the CHT monster and having been so disappointed in progress so many
> times I felt I needed to report that the dragon is dead and the CHTs
> have gone down and are stable. I flew her very hard today in 90 + heat
> and No. 4 stabilized at about 270 degrees. That is down from 340
> degrees only a couple weeks ago. I owe a bunch to Ron, Fred, Jim,
> Harold, Derrick, Gene, Neil and a couple other guys that came by,
> drank my beer and offered opinions, and anybody else that ever told
> them anything about air ducting and cooling airplane engines. You guys
> will never have to buy a beer if I'm anywhere around !
> Best regards, Bill of Georgia
> N505WP
> 601XL-3300
>
>*
>*
>
Message 12
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--> Zenith-List message posted by: "Zodie Rocket" <zodierocket@hsfx.ca>
Hi Group, is there anyone in the Hamilton, St. Catherine's or Niagara
Falls Ontario region with a flying 601?
cdngoose
do not archive
--
Message 13
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| Subject: | Craftsman Drill Press sale |
Lets ALL take it with humor
Is a fact.... Scotch Brite and Strippers will be part of this great list for
ever.
Here we say (hope I can translate to english):
If your AKA name makes you angy... is a good one and will be with you for life.
Please put a little humor on top of any building frustration... Will make building
and flying our airplanes a joy.
Saludos
Gary Gower.
Flying from Chapala, Mexico.
Gary Boothe <gboothe@calply.com> wrote: --> Zenith-List message posted by: "Gary
Boothe"
Does Sears have strippers?
Gary Boothe
Cool, CA
601 HDSTD, WW Conversion
Tail done, wings done, working on c-section
---------------------------------
Message 14
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| Subject: | Re: Zenair for sale |
--> Zenith-List message posted by: rwhall@telusplanet.net
Bob Thank you for your tip. I have listed my Zenair on the Barnstomers site
and already had some interest. Best regards, Robert
Quoting "Robert L. Stone" <rstone4@hot.rr.com>:
>
>
>
> Robert,
> Barnstormers is the best aviation web site and adds are free unless you
> want to make a donation. I have used them and always make a donation after
> the sale. It's also a good idea to tell people where you are because there
> might be someone close who is looking for a Zenith/Zodiac aircraft to buy.
> http://www.barnstormers.com/cat.php?
PHPSESSID=2ef94a86daa861b6da018683153522ef
>
> Bob Stone, Harker Heights
> ZodiacXL
>
> ----- Original Message -----
> From: <rwhall@telusplanet.net>
> To: <zenith-list@matronics.com>
> Sent: Friday, September 08, 2006 12:12 PM
> Subject: Zenith-List: Zenair for sale
>
>
> > --> Zenith-List message posted by: rwhall@telusplanet.net
> >
> >
> > I have an airworthy CH601 which regrettably I must sell. I would appreciate
> any
> > suggestions as to the best way or place to sell. Regards, Robert Hall
> >
> >
> >
> > > > > > >
> >
> >
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