Today's Message Index:
----------------------
1. 12:16 AM - Re: Re: Polish, Paint OR not (raymondj)
2. 05:07 AM - Re: Re: FYI Cable Tensions, etc. (David Downey)
3. 12:58 PM - Cable load on rear rib 7 (dalemed)
4. 01:33 PM - Re: Cable load on rear rib 7 (Leo Gates)
5. 01:36 PM - Re: Re: Polish, Paint OR not (Jim Belcher)
6. 01:45 PM - Re: rudder, horiz stab/elevator storage (Jim Belcher)
7. 01:59 PM - Re: Cable load on rear rib 7 (Gig Giacona)
Message 1
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| Subject: | Re: Polish, Paint OR not |
Interesting thought on the home base sacrificial anode. I may setup a trial
next spring if I get around to it. Hang just a piece of al on a string and
another one attached to a magnesium stake driven into the ground. Very
interesting!
Raymond Julian
Kettle River, MN
"Hope for the best,
but prepare for the worst."
do not archive
----- Original Message -----
From: "FlyingMonkey" <palbertacanada@gmail.com>
Sent: Saturday, November 08, 2008 12:44 AM
Subject: Zenith601-List: Re: Polish, Paint OR not
> <palbertacanada@gmail.com>
>
> Nice looking machine in the opening post. Thought crossed my mind that if
> the aircraft is left bare for aesthetics-might be an idea to PAINT those
> portions , with aluminum colored paint......to maintain the look , and add
> corrosion protection.
>
> Two good sources on aircraft corrosion
> Death By Corrosion
> (http://www.amtonline.com/publication/article.jsp?pubId=1&id=1438&pageNum=1)
>
> and
> Fairly long, but worth-reading FAA pdf
> (http://www.airweb.faa.gov/Regulatory_and_Guidance_Library/rgAdvisoryCircular.nsf/0/A7FFC0F8B6216A43862569B5005081ED?OpenDocument&Highlight=corrosion%20control)
>
> Bare aluminum good products:
> LPS3 (http://www.marvgolden.com/aircraft-supply/lps3.htm)
>
> or
> Dinol AV5
> (http://www.ingentaconnect.com/content/maik/prom/2001/00000037/00000001/00299233?crawler=true)
>
> Another way they're starting to experiment with more-to protect ( in
> particular unpainted ) aircraft-sacrificial anodes. Although they're
> putting small sacrificial anodes ( a few ounces ) in the aircraft body (
> although this wouldn't work in military aircraft ( built of metals in the
> same galvanic number as the anode=no current flow) I wonder why a 12
> pound magnesium sacrificial anode , in a five gallon metal pail of water,
> which is coppered to ground, and also having one light wire from anode to
> an all aluminum aircraft,wouldn't also induce a 5 millivolt current
> flow-blocking the aluminum corrosion, and inducing the sacrificial anode
> to corrode instead ( while the aircraft is tethered ) -just like I do with
> buried water valves.....
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=213001#213001
>
>
--------------------------------------------------------------------------------
Checked by AVG - http://www.avg.com
7:58 PM
Message 2
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| Subject: | Re: FYI Cable Tensions, etc. |
something else to keep in mind, Way back when Burt Rutan worked for Jim Bed
e in Newton Kansas, they ran control cable through nylon tubing over some o
bstruction that was attached to a door so that when people used the door it
moved the cable in the tube. What they found, if I recall correctly, was t
hat the cable wears more rapidly than the tubing. We may need to insect the
cables for wear as well where the pass the fairleads?
David L. Downey Harleysville-(SE) PA, USA
--- On Fri, 11/7/08, Sabrina <chicago2paris@msn.com> wrote:
From: Sabrina <chicago2paris@msn.com>
Subject: Zenith601-List: Re: FYI Cable Tensions, etc.
<chicago2paris@msn.com>
They were set with identical model cable gauges. The only problem is that
over the telephone in November of 2007, and there may have been a lot of st
atic
on the line, what was heard from Zenith was ALL cables: 25 +/- 5, with the
caveat: light side on the rudder, heavy side on the elevator. There was
another conversation where 30 +/- 5 was mentioned but the voice was not
recognized and they made no differentiation between any particular control
surface.
So too, this time an IA did it.
>From what I recall, and from what I can decipher from my notes at this
time, this is what they were set at originally in November of 2007:
right aileron set to 25 found to be 25.....OK
left aileron set to 25 found to be 25.......OK
balance cable set to 25 found at 20........it runs through more nylon
up elevator set at 30 found at 35...........elevator neutralized this time
down elevator set at 30 found at 35......elevator neutralized this time
left rudder set to 20 found at 27............different lift methods used
right rudder set to 20 found at 27..........different lift methods used
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=212987#212987
=0A=0A=0A
Message 3
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| Subject: | Cable load on rear rib 7 |
I'm in the process of attaching the Bellcrank Support and Bellcrank Support Channel
to Rear Rib 7. I can't help but wonder how RR7 supports 70 (+/-10) lbs of
cable force (each cable pulling with 30 (+/-5) lbs.).
It's Saturday or I'd call the factory to ask them if it might be wise to add L
angle doublers to the Bellcrank Support Channel.
Am I unnecessarily concerned?
--------
Dale
Flying Cessna 170B
Building Zenith 601XL
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=213050#213050
Message 4
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| Subject: | Re: Cable load on rear rib 7 |
dalemed wrote:
>
> I'm in the process of attaching the Bellcrank Support and Bellcrank Support Channel
to Rear Rib 7. I can't help but wonder how RR7 supports 70 (+/-10) lbs
of cable force (each cable pulling with 30 (+/-5) lbs.).
>
>
I believe that is only 30 +/- 5 lbs pull on the rib.
> It's Saturday or I'd call the factory to ask them if it might be wise to add
L angle doublers to the Bellcrank Support Channel.
>
> Am I unnecessarily concerned?
>
> --------
> Dale
> Flying Cessna 170B
> Building Zenith 601XL
>
Leo Gates
N601Z - CH601HDS TDO
Rotax 912UL
Message 5
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| Subject: | Re: Polish, Paint OR not |
Something that seems to be ignored a bit is that corrosion occurs not just on
the outside skin of the aircraft, but also on the inside. No matter what kind
of paint or similar material is used on the outside, the inside still needs
protection.
It doesn't seem much more difficult to not put a decorative coating everywhere
on the exterior, and to do the protection on both the inside and the outside
surfaces at the same time. I normally did the interior surfaces of my
Cherokee during annual each year. I'd probably do the same thing for the
601XL.
I'll admit I'm biased, though. I'd already pretty much made up my mind to
minimize the decorative coating on the outside.
=============================================
Those who can, do. Those who can't, sue.
================================================
Jim B. Belcher
BS, MS Physics, math, Computer Science
A&P/IA
Instrument Rated Pilot
General Radio Telephone Certificate
================================================
Message 6
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| Subject: | Re: rudder, horiz stab/elevator storage |
Thanks to all for the ideas. I will probably build the storage rack suggested
by Jay Bannister for the wings and elevator.
Each of us has our own unique requirements. My shop, where I'm building the
aircraft, has sloped rafters, with no flat ceiling area. The walls are heavy
steel beams, with sheet metal. That makes it difficult to store the rubber on
the walls, or to build some kind of storage surface below the ceiling.
I will continue to think on the rudder problem. You've given me some ideas.
=============================================
Those who can, do. Those who can't, sue.
================================================
Jim B. Belcher
BS, MS Physics, math, Computer Science
A&P/IA
Instrument Rated Pilot
General Radio Telephone Certificate
================================================
Message 7
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| Subject: | Re: Cable load on rear rib 7 |
I don't think it would create a combined load like that because the other end is
also dealing with half of the tension. It is just 30 (+/-5) lbs.
dalemed wrote:
> I'm in the process of attaching the Bellcrank Support and Bellcrank Support Channel
to Rear Rib 7. I can't help but wonder how RR7 supports 70 (+/-10) lbs
of cable force (each cable pulling with 30 (+/-5) lbs.).
>
> It's Saturday or I'd call the factory to ask them if it might be wise to add
L angle doublers to the Bellcrank Support Channel.
>
> Am I unnecessarily concerned?
--------
W.R. "Gig" Giacona
601XL Under Construction
See my progress at www.peoamerica.net/N601WR
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=213059#213059
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