Today's Message Index:
----------------------
1. 03:34 AM - Re: Kolb Mark II for sale (rayw)
2. 05:05 AM - Re: Kolb Mark II for sale (Richard Pike)
3. 05:27 AM - Re: Card Compass Question (Dana Hague)
4. 05:52 AM - Re: Card Compass Question (russ kinne)
5. 06:44 AM - Re: Card Compass Question (loseyf@comcast.net)
6. 06:45 AM - Re: Card Compass Question (loseyf@comcast.net)
7. 06:49 AM - Re: Card Compass Question (Tom Longo)
8. 07:24 AM - Re: Card Compass Question (John Hauck)
9. 07:55 AM - Re: Kolb Mark II for sale (pj.ladd)
10. 07:55 AM - Re: Card Compass Question (Tom Longo)
11. 08:13 AM - compass (b young)
12. 09:36 AM - Re: Card Compass Question (racerjerry)
13. 11:25 AM - Re: Kolb Mark II for sale (ces308)
14. 08:01 PM - Was Kolb Mark II for sale - Names Suggestions Needed (jerb)
15. 08:30 PM - Re: Was Kolb Mark II for sale - Names Suggestions Needed (Richard Pike)
16. 08:47 PM - Re: Card Compass Question (Richard Pike)
Message 1
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| Subject: | Re: Kolb Mark II for sale |
Cristal,
Congratulations!!!!
Ray W.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=278218#278218
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| Subject: | Re: Kolb Mark II for sale |
Congratulations Crystal, and I agree with Rick. Don't take any less than your asking
price unless you really need the money, or really would like to roll your
own in a few years. Otherwise put it in storage.
Richard Pike
MKIII N420P (420ldPoops)
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=278221#278221
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| Subject: | Re: Card Compass Question |
At 09:30 PM 12/19/2009, Rick Lewis wrote:
>...The only thing I see so far that interferes with the compass is the RPM
>gauge and that is easily eliminated by distance.
>
> My question is, does anyone know of any shielding methods thats good
> to use other that just distance. Aluminum plate shielding does nothing.
Rick, aluminum will do nothing because it's not magnetic. You can't
actually shield a magnetic field, but you can reroute it to some
extent. Try <http://www.lessemf.com/mag-shld.html>.
-Dana
--
Why doesn't the fattest man in the world become a hockey goalie?
Message 4
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| Subject: | Re: Card Compass Question |
Rick
I've had SOME luck with copper sheeting -- but it's far from
perfect. Worth a try, but there's a lot of steel in a Kolb.
A flux-gate compass should be good, with the head way out on/in the
wing.
Good luck!
Russ K
do not archive
On Dec 19, 2009, at 9:30 PM, Rick Lewis wrote:
>
> I am laying out my instrument panel and would like to Put the card
> compass in the upper most area of the panel. I know to keep all
> wiring and anything electrical as far away as possible from the
> compass or the reading will be affected. That's the reason you
> normally see them hanging in a hodge podge manner most anywhere.
> The only thing I see so far that interferes with the compass is the
> RPM gauge and that is easily eliminated by distance.
>
> My question is, does anyone know of any shielding methods
> thats good to use other that just distance. Aluminum plate
> shielding does nothing.
>
> Thanks
>
> Rick Lewis
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=278201#278201
>
>
Message 5
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| Subject: | Re: Card Compass Question |
Bob,
In electronics, mu-metal is an excellent shielding material. If I recall it is
mostly nickel, some iron. I suspect this is what you were given.
Sent from my Verizon Wireless BlackBerry
-----Original Message-----
From: robert bean <slyck@frontiernet.net>
Subject: Re: Kolb-List: Card Compass Question
I had a plane that suddenly became magnetized and messed up the compass. A fellow
from the lab where I worked gave
me a piece of thin shiny metal that looked like stainless and I put it under the
compass base. He had a name for it but that was a long time ago.
BB
On 19, Dec 2009, at 9:30 PM, Rick Lewis wrote:
>
> I am laying out my instrument panel and would like to Put the card compass in
the upper most area of the panel. I know to keep all wiring and anything electrical
as far away as possible from the compass or the reading will be affected.
That's the reason you normally see them hanging in a hodge podge manner most
anywhere. The only thing I see so far that interferes with the compass is
the RPM gauge and that is easily eliminated by distance.
>
> My question is, does anyone know of any shielding methods thats good to use
other that just distance. Aluminum plate shielding does nothing.
>
> Thanks
>
> Rick Lewis
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=278201#278201
>
>
>
>
>
>
>
>
>
>
Message 6
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| Subject: | Re: Card Compass Question |
If I were trying to determine what effect the airframe is having, I would establish
a directional heading reference outside the aircraft, then place the compass
in the aircraft, maintaining the outside reference. With all power off, is
there a difference? There may not be much you can do with respect to this except
try to find a point of lowest interference.
The thing to keep in mind with magnetic coupling is that the inverse square law
applies. What I mean by this is if structure is the issue, the magnetic effect
will decrease by the inverse square root with distance. For example, if I
have a known gauss level (hypothetically and for simplicity) of say 16 at 1" from
a source of magnetic flux, the level would be 4 at 2", 2 at 4", etc. Keeping
it simple, take the square root of the flux value for every doubling of distance.
Again theoretically.
If the compass does not swing "significantly" when all power is off, turn items
on one at a time. Can you identify the source?
Shielding can help in some cases, but it can be tricky.
My 2 cents. Happy Holidays everyone!
Sent from my Verizon Wireless BlackBerry
-----Original Message-----
From: loseyf@comcast.net
Subject: Re: Kolb-List: Card Compass Question
Bob,
In electronics, mu-metal is an excellent shielding material. If I recall it is
mostly nickel, some iron. I suspect this is what you were given.
Sent from my Verizon Wireless BlackBerry
-----Original Message-----
From: robert bean <slyck@frontiernet.net>
Subject: Re: Kolb-List: Card Compass Question
I had a plane that suddenly became magnetized and messed up the compass. A fellow
from the lab where I worked gave
me a piece of thin shiny metal that looked like stainless and I put it under the
compass base. He had a name for it but that was a long time ago.
BB
On 19, Dec 2009, at 9:30 PM, Rick Lewis wrote:
>
> I am laying out my instrument panel and would like to Put the card compass in
the upper most area of the panel. I know to keep all wiring and anything electrical
as far away as possible from the compass or the reading will be affected.
That's the reason you normally see them hanging in a hodge podge manner most
anywhere. The only thing I see so far that interferes with the compass is
the RPM gauge and that is easily eliminated by distance.
>
> My question is, does anyone know of any shielding methods thats good to use
other that just distance. Aluminum plate shielding does nothing.
>
> Thanks
>
> Rick Lewis
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=278201#278201
>
>
>
>
>
>
>
>
>
>
Message 7
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| Subject: | Card Compass Question |
My compass was way off and I tried few different ones and they were all off
about the same. My compass was mounted on the left side of dash in a MKIII
Classic. I used a degaussing coil made for removing magnetism from TV
picture tubes and degaussed the frame around the dash area and the compass
was perfect after that. I own a electronics repair shop and the local car
dealer has sent me a few cars over the years that had electronic compasses
that were too far out of range to compensate and I would degauss the hood
and metal around windshield and roof and this would take care of compass
problems. So borrow a coil or buy one from supply company and try it you
will be surprised it works. Tom
-----Original Message-----
From: owner-kolb-list-server@matronics.com
[mailto:owner-kolb-list-server@matronics.com]On Behalf Of Dana Hague
Sent: Sunday, December 20, 2009 8:06 AM
Subject: Re: Kolb-List: Card Compass Question
At 09:30 PM 12/19/2009, Rick Lewis wrote:
...The only thing I see so far that interferes with the compass is the RPM
gauge and that is easily eliminated by distance.
My question is, does anyone know of any shielding methods thats good to
use other that just distance. Aluminum plate shielding does nothing.
Rick, aluminum will do nothing because it's not magnetic. You can't
actually shield a magnetic field, but you can reroute it to some extent.
Try < http://www.lessemf.com/mag-shld.html>.
-Dana
--
Why doesn't the fattest man in the world become a hockey goalie?
<http://www.buildersbooks.com>
<http://www.homebuilthelp.com>
Message 8
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| Subject: | Re: Card Compass Question |
Tom/Gang:
Where are you located?
I'll swing by your place and let you degauss my compass. ;-)
Would be nice to have a mag compass that performed accurately and
reliably.
john h
mkIII
I used a degaussing coil made for removing magnetism from TV picture
tubes and degaussed the frame around the dash area and the compass was
perfect after that. Tom
Message 9
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| Subject: | Re: Kolb Mark II for sale |
I found out I am expecting.>>
Congratulations. Hang on to the Kolb. You will need it again in no time
Cheers and Merry Christmas
Pat
Message 10
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| Subject: | Card Compass Question |
Hi John, that will be great I will go out and stop traffic on SR50 in
Brooksville, FL in front of my shop so you can land but your on your own
clearing wires across the road.
LOL, Tom
-----Original Message-----
From: owner-kolb-list-server@matronics.com
[mailto:owner-kolb-list-server@matronics.com]On Behalf Of John Hauck
Sent: Sunday, December 20, 2009 10:14 AM
Subject: Re: Kolb-List: Card Compass Question
Tom/Gang:
Where are you located?
I'll swing by your place and let you degauss my compass. ;-)
Would be nice to have a mag compass that performed accurately and reliably.
john h
mkIII
I used a degaussing coil made for removing magnetism from TV picture tubes
and degaussed the frame around the dash area and the compass was perfect
after that. Tom
<http://www.buildersbooks.com>
<http://www.homebuilthelp.com>
Message 11
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If you cant find a place on the instrument panel that is not affected.
Try a compass that mounts to the windshield.
Aircraft spruce p/n NV-2A, page 404 in the 2008~2009 catalog.
Or you could build a mount for the compass you have.
Boyd Young
Kolb MkIII C 620+ hours and counting
Brigham City Utah.
Message 12
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| Subject: | Re: Card Compass Question |
Wet compass problem?
Check your fuselage over using a camping/Boy Scout handheld compass, especially
in the vicinity of your proposed mounting point for the wet compass. Electrical
welding often leaves traces of magnetism behind. If you find an area that
strongly deflects the compass needle (much more than the needles normal attraction
to anything steel), locate an OLD TV repair guy and see if you can borrow
his degaussing coil (obsolete technology for very old color TV sets).
If you energize the coil with AC current (energize away from the steel), bring
the coil close and slowly move the coil in circles around the affected area, and
then slowly move the coil away; most of the steel atoms will re-arrange their
polarity into their normal random order. This should reduce or eliminate any
problem with residual magnetism. Dont leave the coil energized too long or
it will overheat and self-destruct.
WARNING When degaussing, keep your wallet, watches, charge cards, CDs, computers,
tapes or any other magnetic storage media far, far away. Also, remove all
radios and aircraft instruments beforehand. I would also remove any ball bearings
in the vicinity.
If you want more fun, make your own degaussing coil Google Make Degaussing Coil
for specifics. Drive a few finishing nails leaning slightly outward in a 10
inch circle on a piece of plywood You will probably want to limit the current
flow through your coil using light bulb(s) in series with your coil. If you
arrange a few bulb sockets in parallel and connect that network in series with
your coil, you can adjust the coil current for acceptable heat. Tape the
coil (flat) onto a short stick. Use only in DRY weather, in good shoes, with
one hand behind you back and try to avoid electrocution. Hey, flying is a dangerous
sport too!
Seriously, always power your coil setup through a Ground Fault Circuit Interrupter
protected circuit, You can buy a plug-in GFCI for use at the airport or better,
make your own extension cord by mounting a normal GFCI into a steel electrical
box along with a heavy 3-wire appliance cord and use it for ALL your power
tools. This setup wont protect if you are dumb enough to put your fingers
across hot and neutral, but works extremely well if you touch something electrically
hot and your body happens to be even slightly grounded (through dampness
or touching grounded metal) or are using that old metal housing portable electric
drill you found in the trash with frayed insulation and with the grounding
prong clipped off.
KOLB Flyers Did you get the message? Make the darned GFCI extension cord whether
you need a degaussing coil or not. We are having too much fun. It could
save your life.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=278264#278264
Message 13
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| Subject: | Re: Kolb Mark II for sale |
Cristal...Congrats on the new one ! ........however....seriously consider putting
it away for a while...fold it up,cover it up pickle the engine a wait a
while.....easy for me to say huh....lol Good luck on what ever you do !
chris ambrose
M3X/Jab 86.0 hrs +
N327CS
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=278276#278276
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| Subject: | Was Kolb Mark II for sale - Names Suggestions Needed |
Congratulations Cristal.
Ok folks,
We need some names here. Not sure if it's a boy or a girl. Must be
aviation orientated. Can't be like Stick, Aileron, or Rudder, those
are already taken by our dogs. More like Blue Sky, etc. Just might
be fun to see what we can come up with while trying to stay warm over
the Christmas, New year holidays. If nothing else we might use them
for naming our airplanes.
jerb
Message 15
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| Subject: | Re: Was Kolb Mark II for sale - Names Suggestions Needed |
ulflyer(at)verizon.net wrote:
> Congratulations Cristal.
>
> Ok folks,
>
> We need some names here. Not sure if it's a boy or a girl. Must be
> aviation orientated. Can't be like Stick, Aileron, or Rudder, those
> are already taken by our dogs. More like Blue Sky, etc.
> jerb
"More like Blue Sky, etc?" Wow, dude, let me get out my bell bottoms and incense...
Hmmm, let's see...
"Rainbow Rib Stitch"
"Moonbeam Mark Three"
"Tailwind Teresa"
"Little Ivo"
Are your really sure this is a good idea?
Richard Pike
MKIII N420P (420ldPoops)
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=278323#278323
Message 16
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| Subject: | Re: Card Compass Question |
A degaussing coil works wonders, the airplane I had prior to the MKIII was a magnetic
nightmare, but easily fixed by using a bulk VCR or cassette eraser. An
old A&P told me how. Right now on ebay there are several degaussers, search "Realistic
tape eraser" and the prices are starting at under $5.
I had gas welded the fuselage of the J-6, and each cluster joint was highly magnetized.
Don't know why that is, but it happens. Do like racer Jerry says, (heed
his warnings too) start several feet away, turn the degausser on and then move
it in a spiraling arc to the cluster joint - don't touch the steel, when it
gets close, it will magnetically try to suck itself close to the airframe, a
piece of cardboard or anything to keep a little space is good. Keep the degausser
moving, and then spiral back out going in the opposite direction until you
are several feet away before turning it off.
Check your work with any hand held compass and redo any cluster joints that didn't
behave the first time. You ought to be able to get rid of 90% of your aggravation.
At least that was my experience.
Richard Pike
MKIII N420P (420ldPoops)
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=278324#278324
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