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sam95037(at)yahoo.com
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 Posted: Tue Oct 30, 2007 12:42 pm Post subject: RV8 comm antenna spacing |
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Has anyone out there been flying with two comm
antennas mounted on their rv8 belly, just aft of the
fuselage spar carry through bulkhead? Any problems
with coupling between the antennas or reception?
Sam Ray
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rv8striker(at)hotmail.com
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| Posted: Wed Oct 31, 2007 6:16 am Post subject: RV8 comm antenna spacing |
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Sam,
I put two Comant, bent whip type, on the belly of my "8". I was told to put
them as far apart as possible to keep them from interfering with each other.
To accomplish this one is mounted on the center line of the fuselage just
aft of the main spar center section. The other is also on the centerline but
aft of the rear baggage area. Both are mounted on doublers on the skin to
reinforce those areas. After 100 hours all is well and my radios have worked
great. If you like I can send you some pictures off list. Let me know.
Hope this helps.
Steve Struyk
St. Charles, MO
RV-8, 100 Hrs.
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seiders(at)bellsouth.net
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| Posted: Wed Oct 31, 2007 8:05 am Post subject: RV8 comm antenna spacing |
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Sam, Put one on the belly between the gear and put a Rami type on top
of fuse aft of canopy. No problems with this setup and less shadowing.
Dick
At 04:36 PM 10/30/2007, you wrote:
| Quote: |
Has anyone out there been flying with two comm
antennas mounted on their rv8 belly, just aft of the
fuselage spar carry through bulkhead? Any problems
with coupling between the antennas or reception?
Sam Ray
__________________________________________________
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n616tb(at)btsapps.com
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| Posted: Wed Oct 31, 2007 8:22 am Post subject: RV8 comm antenna spacing |
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I wish I had done this on my RV-6. I put both comm. Antennas on the belly
and I have no problem except with ground communications when my flaps are
down. The -6 is wider however and so spacing is probably less of a problem.
Flaps do cause a shadow for me at least.
Tim
[quote] --
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khorton01(at)rogers.com
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| Posted: Wed Oct 31, 2007 12:36 pm Post subject: RV8 comm antenna spacing |
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The RV-8 canopy slides over the whole aft fuselage, all the way back
to the empennage fairing, so it is not possible to mount a comm
antenna on top of the aft fuselage.
Kevin Horton
On 31 Oct 2007, at 12:04, Richard Seiders wrote:
| Quote: |
Sam, Put one on the belly between the gear and put a Rami type on
top of fuse aft of canopy. No problems with this setup and less
shadowing.
Dick
At 04:36 PM 10/30/2007, you wrote:
>
>
> Has anyone out there been flying with two comm
> antennas mounted on their rv8 belly, just aft of the
> fuselage spar carry through bulkhead? Any problems
> with coupling between the antennas or reception?
>
> Sam Ray
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seiders(at)bellsouth.net
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| Posted: Thu Nov 01, 2007 5:54 am Post subject: RV8 comm antenna spacing |
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Thought we were talking about a 6, my mistake.
At 04:33 PM 10/31/2007, you wrote:
| Quote: |
The RV-8 canopy slides over the whole aft fuselage, all the way back
to the empennage fairing, so it is not possible to mount a comm
antenna on top of the aft fuselage.
Kevin Horton
On 31 Oct 2007, at 12:04, Richard Seiders wrote:
>
>
>Sam, Put one on the belly between the gear and put a Rami type on
>top of fuse aft of canopy. No problems with this setup and less
>shadowing.
>Dick
>At 04:36 PM 10/30/2007, you wrote:
>
>>
>>
>>Has anyone out there been flying with two comm
>>antennas mounted on their rv8 belly, just aft of the
>>fuselage spar carry through bulkhead? Any problems
>>with coupling between the antennas or reception?
>>
>>Sam Ray
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mrobert569(at)hotmail.com
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| Posted: Fri Nov 02, 2007 7:56 am Post subject: RV8 comm antenna spacing |
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Had my first RV-8A set up this way and never ran into any problems.............until it went undrwater that is.
Mike Robertson
> Date: Tue, 30 Oct 2007 13:36:39 -0700
| Quote: | From: sam95037(at)yahoo.com
Subject: RV8 comm antenna spacing
To: rv-list(at)matronics.com
--> RV-List message posted by: sam ray <sam95037(at)yahoo.com>
Has anyone out there been flying with two comm
antennas mounted on their rv8 belly, just aft of the
fuselage spar carry through bulkhead? Any problems
with coupling between the antennas or reception?
Sam Ray
=============
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Help yourself to FREE treats served up daily at the Messenger Café. Stop by today! [quote][b]
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chuck(at)chuckdirect.com
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| Posted: Fri Nov 02, 2007 10:32 am Post subject: RV8 comm antenna spacing |
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Had my RV9A set up this way. Never any problems.
Chuck
[quote] ---
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khedrick(at)frontiernet.n
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| Posted: Fri Nov 02, 2007 5:39 pm Post subject: RV8 comm antenna spacing |
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OK, I will bite, if no one else will. What happened that the plane that it went underwater- if you would care to share. I doubt that your 8 is any better at being a submarine than my 6 !
Illinois Keith
3LF
012345
[quote][b]
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mrobert569(at)hotmail.com
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| Posted: Mon Nov 05, 2007 7:44 am Post subject: RV8 comm antenna spacing |
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Most of the folks that have been around the rv-list for a while know about this already sop I did not expand on it. I built the -8A out in Hawaii in 98. It was about the 4th quick build RV-8 kit that Van's sold. Anyway, when I left Hawaii on a job change the plane stayed there with my build partner. A couple years later he sold it to another very good friend. He went through the entire plane and got it just the way he wanted it, to include a full IFR panel with a Garmin 430, an SL30 Nav/Com, an EFIS D-10, and a Vision Microsystem's engine monitor. About a month later he was flying between Oahu and Kauai and the engine went to idle. When he checked the throttle control he found it had that disconnected feel. With that big Hartzell constant speed prop going to flat pitch it glided about like a rock right down to the point of a water landing. The plane snuffed and flipped over on impact. Due to good Hooker seat belts my friend wasn't hurt and got out within about 20 seconds. He had been on flight following and alerted them to the problem. The Coast Guard was alerted and off the ground before he hit the water. They found him and he was rescued within 20 minutes. He stated the the saddest part of all this was that the plane stayed afloat for about one minute, then the trapped air in the fuselage gave way and the plane sank out of sight. With the excellent water visibility in Hawaii he was able to watch the plane sink gracefully out of sight, the radios and instrument lights still burning brightly.
The spot that the plane went down was over a very deep trench between the two islands, so recovery was totally out of the question. We will never know exactly what happened. Such a sad end to a beautiful plane that only had 75 total hours.
Mike Robertson
Plane 5 and still building
[quote] From: khedrick(at)frontiernet.net
To: rv-list(at)matronics.com
Subject: RE: RV8 comm antenna spacing
Date: Fri, 2 Nov 2007 20:39:09 -0500
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OK, I will bite, if no one else will. What happened that the plane that it went underwater- if you would care to share. I doubt that your 8 is any better at being a submarine than my 6 !
Illinois Keith
3LF
Help yourself to FREE treats served up daily at the Messenger Café. Stop by today! [quote][b]
| | - The Matronics RV-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV-List |
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