Today's Message Index:
----------------------
1. 04:23 AM - Re: Mythical, Magical, Travelling Nose Gear Incert Tool (Lew Gallagher)
2. 06:59 AM - Re: Windscreen Installation (rv10flyer)
3. 07:05 AM - Re: leaking brake calipers (Dave Saylor)
4. 08:11 AM - Re: Cork Gaskets For Comant CI122 VHF Antennas (Bill Watson)
5. 11:54 AM - Re: Cork Gaskets For Comant CI122 VHF Antennas (John Cox)
6. 12:06 PM - Re: Cork Gaskets For Comant CI122 VHF Antennas (dmaib@me.com)
7. 12:11 PM - Re: Cork Gaskets For Comant CI122 VHF Antennas (Carl Froehlich)
8. 01:22 PM - Re: Cork Gaskets For Comant CI122 VHF Antennas (Kelly McMullen)
Message 1
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| Subject: | Re: Mythical, Magical, Travelling Nose Gear Incert Tool |
The helicoil kit made it to Canada and back. Jay forgot to send it on to Steven,
Chris, and Michael, and sent it back to me instead.
So it will be on it's way again by this afternoon. There are just enough inserts
left for this trip.
Later, - Lew
do not archive
--------
non-pilot
crazy about building
NOW OFICIALLY BUILDER #40549
Fly off completed !
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=380265#380265
Message 2
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| Subject: | Re: Windscreen Installation |
Flat black paint on the inside works great.
--------
Wayne Gillispie, A&P 05/93 PP 10/08
40983SB 12/1/2009-12/1/2011
N715WD 382nd Flying. TT= 41
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=380279#380279
Message 3
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| Subject: | Re: leaking brake calipers |
I borrowed a caliper from a customer to get home from OSH under very
similar circumstances. I ordered a replacement and when it arrives
I'll compare it dimensionally to the faulty one. I tried a new o-ring
but it leaked just as bad. There's no evidence of significant scoring
or marks in the bore, so I guess the bore is just worn too large.
We'll see when the new one comes in.
I think the Viton o-rings and MIL-PRF-83282D are the way to go.
Dave Saylor
831-750-0284 CL
On Sat, Aug 4, 2012 at 8:30 PM, David Leikam <arplnplt@gmail.com> wrote:
>
>
> I flew into OSH and landed on runway 9 last Friday during the show. I had to
taxi quite a distance on turf to get to the HBP area with the other 10's. As
I got closer to the parking area, i noticed my brakes getting spongy.
> I don't think I ride the brakes much at all but taxiing on the grass made me
tap dance on them quite a bit. I few back to KUES that evening and found a leaking
right caliper. Opened it up and found the o-ring pretty worn on one side,
almost flat. The wall looked good with no sign of scoring or scratches. I
replaced the o-ring but have not tested the brakes yet. I also found the left
caliper leaking slightly as well. Have not inspected it yet. The plane has
about 170 hours. Had no problems prior to this flight.
> The question is, would heating up the brakes cause the o-rings to fail?
>
> Dave Leikam
>
>
Message 4
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| Subject: | Re: Cork Gaskets For Comant CI122 VHF Antennas |
Seems like I recall someone recommending discarding the gasket and going
for direct metal to metal.
Anyone doing that? Why?
Bill Watson
(do not archive)
On 8/6/2012 11:19 PM, Matt Dralle wrote:
>
>
> Does anyone have a good source for the cork gaskets used with the Comant CI 122
VHF Com antennas? When I removed them from the old RV-8 fuselage, I must have
put them in a very "safe" place and now I can't find them anywhere. Guess
they're pretty safe. Anyway, I need to order a couple more but I checked the
Chief, Pacific Coast Avionics, and ACS web pages and found the antennas but no
references to just ordering the cork gaskets.
>
> <http://www.cobham.com/media/9104/ci%20122%20data%20sheet.pdf>http://www.cobham.com/media/9104/ci%20122%20data%20sheet.pdf
>
> Thanks for any tips...
>
>
> -
> Matt Dralle
>
> RV-8 #82880 N998RV "Ruby Vixen"
> http://www.mattsrv8.com - Matt's Complete RV-8 Construction Log
> http://www.mattsrv8.com/Mishap - Landing Mishap Rebuild Log
> http://www.youtube.com/MattsRV8 - Matt's RV-8 HDTV YouTube Channel
> Status: 172+ Hours TTSN - Rebuilding Fuselage After Landing Mishap...
>
> RV-6 #20916 N360EM "The Flyer"
> http://www.mattsrv6.com - Matt's RV-6 Revitalization Log
> Status: 80+ Hours Since Purchase - Upgrades Complete; Now In Full Flyer Mode
>
>
> -----
> No virus found in this message.
> Checked by AVG - www.avg.com
>
>
Message 5
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| Subject: | Re: Cork Gaskets For Comant CI122 VHF Antennas |
At the airlines, we do Direct Metal to Metal to effect an improved
groundplane. We also treat the skin agains corrosion (Alodine), then
Fillet seal the antenna flange to the skin for water-tight integrity. The
biggest failure is returning the aircraft to service too soon, pressurizing
the cabin for passengers and getting blow-outs in the fillet which allows
moisture. The corrosion is certain in the presence of millivolts, moisture
and dissemilar materials.
John
On Tue, Aug 7, 2012 at 8:10 AM, Bill Watson <Mauledriver@nc.rr.com> wrote:
>
> Seems like I recall someone recommending discarding the gasket and going
> for direct metal to metal.
>
> Anyone doing that? Why?
>
> Bill Watson
> (do not archive)
>
> On 8/6/2012 11:19 PM, Matt Dralle wrote:
>
>>
>>
>> Does anyone have a good source for the cork gaskets used with the Comant
>> CI 122 VHF Com antennas? When I removed them from the old RV-8 fuselage, I
>> must have put them in a very "safe" place and now I can't find them
>> anywhere. Guess they're pretty safe. Anyway, I need to order a couple
>> more but I checked the Chief, Pacific Coast Avionics, and ACS web pages and
>> found the antennas but no references to just ordering the cork gaskets.
>>
>> <http://www.cobham.com/media/**9104/ci%20122%20data%20sheet.**pdf<http://www.cobham.com/media/9104/ci%20122%20data%20sheet.pdf>
>> >http://www.cobham.com/**media/9104/ci%20122%20data%**20sheet.pdf<http://www.cobham.com/media/9104/ci%20122%20data%20sheet.pdf>
>>
>> Thanks for any tips...
>>
>>
>> -
>> Matt Dralle
>>
>> RV-8 #82880 N998RV "Ruby Vixen"
>> http://www.mattsrv8.com - Matt's Complete RV-8 Construction Log
>> http://www.mattsrv8.com/Mishap - Landing Mishap Rebuild Log
>> http://www.youtube.com/**MattsRV8 <http://www.youtube.com/MattsRV8> -
>> Matt's RV-8 HDTV YouTube Channel
>> Status: 172+ Hours TTSN - Rebuilding Fuselage After Landing Mishap...
>>
>> RV-6 #20916 N360EM "The Flyer"
>> http://www.mattsrv6.com - Matt's RV-6 Revitalization Log
>> Status: 80+ Hours Since Purchase - Upgrades Complete; Now In Full Flyer
>> Mode
>>
>>
>>
>>
>>
>>
>>
>>
>> -----
>> No virus found in this message.
>> Checked by AVG - www.avg.com
>>
>>
>>
>
>
Message 6
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| Subject: | Re: Cork Gaskets For Comant CI122 VHF Antennas |
rv10pro(at)gmail.com wrote:
> At the airlines, we do Direct Metal to Metal to effect an improved groundplane.
We also treat the skin agains corrosion (Alodine), then Fillet seal the antenna
flange to the skin for water-tight integrity. The biggest failure is returning
the aircraft to service too soon, pressurizing the cabin for passengers
and getting blow-outs in the fillet which allows moisture. The corrosion is certain
in the presence of millivolts, moisture and dissemilar materials.
>
> John
>
>
> [b]
I did mine exactly the way John describes. Somebody (can't remember who, but probably
Stein) recommended this approach. I have had no problems in nearly four
years.
--------
David Maib
RV-10 #40559
Transition Trainer
New Smyrna Beach, FL
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=380313#380313
Message 7
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| Subject: | Re: Cork Gaskets For Comant CI122 VHF Antennas |
Recommend using the gasket.
Recall that the antenna needs an RF ground, not necessarily a DC ground. Us
ing the gasket mitigates the corrosion aspects while still providing the nee
ded RF ground.
Carl
On Aug 7, 2012, at 2:51 PM, John Cox <rv10pro@gmail.com> wrote:
> At the airlines, we do Direct Metal to Metal to effect an improved groundp
lane. We also treat the skin agains corrosion (Alodine), then Fillet seal t
he antenna flange to the skin for water-tight integrity. The biggest failur
e is returning the aircraft to service too soon, pressurizing the cabin for p
assengers and getting blow-outs in the fillet which allows moisture. The co
rrosion is certain in the presence of millivolts, moisture and dissemilar ma
terials.
>
> John
>
> On Tue, Aug 7, 2012 at 8:10 AM, Bill Watson <Mauledriver@nc.rr.com> wrote:
>
> Seems like I recall someone recommending discarding the gasket and going f
or direct metal to metal.
>
> Anyone doing that? Why?
>
> Bill Watson
> (do not archive)
>
> On 8/6/2012 11:19 PM, Matt Dralle wrote:
>
>
> Does anyone have a good source for the cork gaskets used with the Comant C
I 122 VHF Com antennas? When I removed them from the old RV-8 fuselage, I m
ust have put them in a very "safe" place and now I can't find them anywhere.
Guess they're pretty safe. Anyway, I need to order a couple more but I ch
ecked the Chief, Pacific Coast Avionics, and ACS web pages and found the ant
ennas but no references to just ordering the cork gaskets.
>
> <http://www.cobham.com/media/9104/ci%20122%20data%20sheet.pdf>http://www.c
obham.com/media/9104/ci%20122%20data%20sheet.pdf
>
> Thanks for any tips...
>
>
> -
> Matt Dralle
>
> RV-8 #82880 N998RV "Ruby Vixen"
> http://www.mattsrv8.com - Matt's Complete RV-8 Construction Log
> http://www.mattsrv8.com/Mishap - Landing Mishap Rebuild Log
> http://www.youtube.com/MattsRV8 - Matt's RV-8 HDTV YouTube Channel
> Status: 172+ Hours TTSN - Rebuilding Fuselage After Landing Mishap...
>
> RV-6 #20916 N360EM "The Flyer"
> http://www.mattsrv6.com - Matt's RV-6 Revitalization Log
> Status: 80+ Hours Since Purchase - Upgrades Complete; Now In Full Flyer Mo
de
>
>
>
>
>
>
>
>
> -----
> No virus found in this message.
> Checked by AVG - www.avg.com
>
>
>
>
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> arget="_blank">http://www.matronics.com/Navigator?RV10-List
> =========================
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> =========================
> le, List Admin.
> ="_blank">http://www.matronics.com/contribution
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Message 8
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| Subject: | Re: Cork Gaskets For Comant CI122 VHF Antennas |
The antenna has a gasket for a reason. The base of the antenna is more
than adequately grounded by the 3-4 screws that fasten it to the doubler.
On 8/7/2012 11:51 AM, John Cox wrote:
> At the airlines, we do Direct Metal to Metal to effect an improved
> groundplane. We also treat the skin agains corrosion (Alodine), then
> Fillet seal the antenna flange to the skin for water-tight integrity.
> The biggest failure is returning the aircraft to service too soon,
> pressurizing the cabin for passengers and getting blow-outs in the
> fillet which allows moisture. The corrosion is certain in the
> presence of millivolts, moisture and dissemilar materials.
>
> John
>
> On Tue, Aug 7, 2012 at 8:10 AM, Bill Watson <Mauledriver@nc.rr.com
> <mailto:Mauledriver@nc.rr.com>> wrote:
>
> <Mauledriver@nc.rr.com <mailto:Mauledriver@nc.rr.com>>
>
> Seems like I recall someone recommending discarding the gasket and
> going for direct metal to metal.
>
> Anyone doing that? Why?
>
> Bill Watson
> (do not archive)
>
> On 8/6/2012 11:19 PM, Matt Dralle wrote:
>
> <dralle@matronics.com <mailto:dralle@matronics.com>>
>
>
> Does anyone have a good source for the cork gaskets used with
> the Comant CI 122 VHF Com antennas? When I removed them from
> the old RV-8 fuselage, I must have put them in a very "safe"
> place and now I can't find them anywhere. Guess they're
> pretty safe. Anyway, I need to order a couple more but I
> checked the Chief, Pacific Coast Avionics, and ACS web pages
> and found the antennas but no references to just ordering the
> cork gaskets.
>
> <http://www.cobham.com/media/9104/ci%20122%20data%20sheet.pdf>http://www.cobham.com/media/9104/ci%20122%20data%20sheet.pdf
>
> Thanks for any tips...
>
>
> -
> Matt Dralle
>
> RV-8 #82880 N998RV "Ruby Vixen"
> http://www.mattsrv8.com - Matt's Complete RV-8 Construction Log
> http://www.mattsrv8.com/Mishap - Landing Mishap Rebuild Log
> http://www.youtube.com/MattsRV8 - Matt's RV-8 HDTV YouTube Channel
> Status: 172+ Hours TTSN - Rebuilding Fuselage After Landing
> Mishap...
>
> RV-6 #20916 N360EM "The Flyer"
> http://www.mattsrv6.com - Matt's RV-6 Revitalization Log
> Status: 80+ Hours Since Purchase - Upgrades Complete; Now In
> Full Flyer Mode
>
>
> -----
> No virus found in this message.
> Checked by AVG - www.avg.com <http://www.avg.com>
>
>
> ===================================
> arget="_blank">http://www.matronics.com/Navigator?RV10-List
> ===================================
> http://forums.matronics.com
> ===================================
> le, List Admin.
> ="_blank">http://www.matronics.com/contribution
> ===================================
>
>
> *
>
>
> *
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