Today's Message Index:
----------------------
1. 06:21 AM - Re: Conduit (Chris Stone)
2. 06:49 AM - Re: Conduit (Phil Birkelbach)
3. 06:51 AM - Antennas In Wingtips (Chris Stone)
4. 07:27 AM - Re: Conduit (Bill Marvel)
5. 07:36 PM - (no subject) (Dougpsr@aol.com)
Message 1
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--> RV8-List message posted by: "Chris Stone" <Chris.Stone@a-dec.com>
What style of Nav/GS, Marker Beacon, Com antennas are you using in the
wingtips? Are you using both wingtips?
I am about to start the wings of my -8 and plan an IFR panel. Burying
the antennas seems like a good idea aerodynamically but how about
electrically? With the com in one wingtip the airframe would shield it
from a signal coming from the opposite side? Would the same be true for
the Nav antenna when the A/C is not oriented with the nose/tail at the
navaid?
Chris Stone
RV-8 Wings
-----Original Message-----
From: Bill Marvel [mailto:bmarvel@cox.net]
Subject: Re: RV8-List: Conduit
--> RV8-List message posted by: Bill Marvel <bmarvel@cox.net>
Jim:
I had a QB -8A and just got the black conduit Van sells. I routed it
through the rib lightening holes just forward of the rear spar. You
don't need to drill anything other than maybe small holes for tie wraps
to keep it from bouncing around. I ran wires through the conduit out to
the end for nav lights, landing light in each wing and strobes and one
more for pitot heat in the left wing. The existing tooling holes near
the front spar were about right for plastic grommets I used to run coax
out there for marker beacon and nav/gs antennas in one wing tip and the
com 2 antenna in the other.
Bill Marvel
Jim Adams wrote:
> --> RV8-List message posted by: "Jim Adams" <jimmiea@essex1.com>
>
> I am building an RV-8A and am just finishing deburring the wing ribs.
> I need to drill holes to run the conduit for the wing tip lights.
> Anyone out there who could tell me what conduit worked the best and
> the location they used to run it throught the W-711-R/L inboard wing
> ribs?
>
> Jim Adams
> RV-8A wing
>
--
Bill Marvel Home/office 310 832
7617
P.O. Box 784 Cell 310 293 2013
San Pedro, CA 90733 Fax 310 832 5334
One good deed beats 100 good intentions...
direct advertising on the Matronics Forums.
Message 2
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--> RV8-List message posted by: "Phil Birkelbach" <phil@petrasoft.net>
I have some pictures on my website of where I ran the conduit.
http://www.myrv7.com/viewimage.php?pictureid=130
http://www.myrv7.com/viewimage.php?pictureid=131
Both locations get in the way of riveting a little bit. The aft location is
simply where the tooling holes are. Watch out for the outboard most rib
because the aileron hinge bracket will be in the way. You will have to move
it forward and up a little bit. The other location is one that I came up
with and if I had to do it again I would move it up just a little because it
is in the way for riveting the bottom skins but not too bad. I have had the
controls hooked up, I have a Tru-Trak autopilot servo in the wing, AOA probe
tubing and the pitot tubing and these two conduit locations stay well clear
of all of the above.
BTW when I write things like up, forward and aft I mean in relation to the
airplane not how the wing is sitting in the cradle.
Godspeed,
Phil Birkelbach - Houston Texas
RV-7 N727WB (Reserved) - Fuselage
http://www.myrv7.com
----- Original Message -----
From: "Jim Adams" <jimmiea@essex1.com>
Subject: RV8-List: Conduit
> --> RV8-List message posted by: "Jim Adams" <jimmiea@essex1.com>
>
> I am building an RV-8A and am just finishing deburring the wing ribs. I
need to drill holes to run the conduit for the wing tip lights. Anyone out
there who could tell me what conduit worked the best and the location they
used to run it throught the W-711-R/L inboard wing ribs?
>
> Jim Adams
> RV-8A wing
>
>
Message 3
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| Subject: | Antennas In Wingtips |
--> RV8-List message posted by: "Chris Stone" <Chris.Stone@a-dec.com>
What style of Nav/GS, Marker Beacon, Com antennas are you using in the
wingtips? Are you using both wingtips? I am about to start the wings of
my -8 and plan an IFR panel. Burying the antennas seems like a good idea
aerodynamically but how about electrically? With the com in one wingtip
the airframe would shield it from a signal coming from the opposite
side? Would the same be true for the Nav antenna when the A/C is not
oriented with the nose/tail at the navaid?
Chris Stone
RV-8 Wings
Message 4
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--> RV8-List message posted by: Bill Marvel <bmarvel@cox.net>
Chris:
I used antennas from Bob Archer in the wingtips. The nav/glideslope and
marker beacon antennas are in the right wingtip (nav/gs on top surface and
marker on the bottom). The com 2 antenna is in the left wingtip. My com 1
and transponder antennas are on the bottom of the fuselage.
The Archer antennas are very inexpensive, light weight and seem to work
fine. In fact, I can get VOR signals out to nearly 100 miles, although the
audio ident is not available until you are in closer. The marker antenna is
so simple he won't even sell you one -- he tells you how to make it. It is
a strip of aluminum about .5 inches wide and about 3 feet long bonded to the
inside of lower wing tip surface. The coax center connector is attached to
it and the ground shield is not used. As I recall it is mounted 3 inches
outboard of the wing edge and parallel to it.
The com antenna sits alone in the other wingtip and is bonded to the bottom
surface and then folds up vertically and is attached to the upper surface.
This gives it maximum vertical rise. It is good out to only about 50
miles, but for backup and ATIS it has worked fine. It is not as good as the
commercial bent whip I have on the belly but is fine for the application I
have for it.
These antennas are available from most of the larger supply houses. Bob
lives out here near me so I was able to get him to come to my hangar and
have him look at the installation. That is when he told me not to buy a
marker antenna. He pointed out that there is practically nothing I could do
to prevent his simple marker antenna design from working. After all, it is
just a piece of metal.
There is a story about this, as well as contact information, at:
http://home.HiWAAY.net/~sbuc/journal/sportcraft.htm
Bill Marvel
Chris Stone wrote:
> --> RV8-List message posted by: "Chris Stone" <Chris.Stone@a-dec.com>
>
> What style of Nav/GS, Marker Beacon, Com antennas are you using in the
> wingtips? Are you using both wingtips?
> I am about to start the wings of my -8 and plan an IFR panel. Burying
> the antennas seems like a good idea aerodynamically but how about
> electrically? With the com in one wingtip the airframe would shield it
> from a signal coming from the opposite side? Would the same be true for
> the Nav antenna when the A/C is not oriented with the nose/tail at the
> navaid?
>
> Chris Stone
> RV-8 Wings
>
> -----Original Message-----
> From: Bill Marvel [mailto:bmarvel@cox.net]
> To: rv8-list@matronics.com
> Subject: Re: RV8-List: Conduit
>
> --> RV8-List message posted by: Bill Marvel <bmarvel@cox.net>
>
> Jim:
>
> I had a QB -8A and just got the black conduit Van sells. I routed it
> through the rib lightening holes just forward of the rear spar. You
> don't need to drill anything other than maybe small holes for tie wraps
> to keep it from bouncing around. I ran wires through the conduit out to
> the end for nav lights, landing light in each wing and strobes and one
> more for pitot heat in the left wing. The existing tooling holes near
> the front spar were about right for plastic grommets I used to run coax
> out there for marker beacon and nav/gs antennas in one wing tip and the
> com 2 antenna in the other.
>
> Bill Marvel
>
> Jim Adams wrote:
>
> > --> RV8-List message posted by: "Jim Adams" <jimmiea@essex1.com>
> >
> > I am building an RV-8A and am just finishing deburring the wing ribs.
>
> > I need to drill holes to run the conduit for the wing tip lights.
> > Anyone out there who could tell me what conduit worked the best and
> > the location they used to run it throught the W-711-R/L inboard wing
> > ribs?
> >
> > Jim Adams
> > RV-8A wing
> >
>
> --
> Bill Marvel Home/office 310 832
> 7617
> P.O. Box 784 Cell 310 293 2013
> San Pedro, CA 90733 Fax 310 832 5334
>
> One good deed beats 100 good intentions...
>
> direct advertising on the Matronics Forums.
>
--
Bill Marvel Home/office 310 832 7617
P.O. Box 784 Cell 310 293 2013
San Pedro, CA 90733 Fax 310 832 5334
One good deed beats 100 good intentions...
Message 5
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--> RV8-List message posted by: Dougpsr@aol.com
Any RV8's for sale?
Doug Preston
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