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05-17-2016, 07:24 AM
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Join Date: Oct 2015
Location: Indianapolis, IN
Posts: 254
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Help Me Plan Wiring in the Wings
Pardon the curiosity dump here, but I have a lot of questions.
As I see it, here's what has to be wired or plumbed in the wings:
Pitot, AOA, Pitot heat
Nav lights
Strobes
Landing/taxi lights
Wingtip Nav antenna (possible, but assume it's there for planning)
Magnetometer
Is that about right?
Right now, I'm about to start the wing skeleton, which would be a better time to drill a bunch of rib holes than after it's together.
I'm planning wingtip landing and taxi lights, but I'm open to correction. Also planning heated pitot/AOA, likely Dynon.
The Pitot tube has its own dedicated holes. Where do you route the AOA line?
If I drill a 3/4" hole in each rib and run a conduit out to the tip, is that large enough for all of the wires?
Is there an advantage to running wire through grommets instead of conduit?
Thanks in advance. Great site, great people, etc.
__________________
Stu F.
RV8
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05-17-2016, 07:43 AM
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Join Date: Feb 2007
Location: Mpumalanga, South Africa
Posts: 1,065
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VANS support site has a Service Letter detailing wing wiring routiyng.
As for conduit vs grommets, I prefer grommets. Simple reason is that I don't want wiring hidden for years in a tube where it can't be seen/inspected. But that's just me - most people around here seem to go with conduit.
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Paul
Mercy Air, White River FAWV
RV-10 ZU-IIZ - "Zeus"
Building Bearhawk Bravo - RV-18 not available 
2019 Donation Made
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05-17-2016, 09:46 AM
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Join Date: Dec 2009
Location: Boulder, CO
Posts: 4,428
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Some of the RVs use a wing-mounted autopilot servo, if you're planning on that feature.
Dave
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05-17-2016, 09:54 AM
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Join Date: Oct 2005
Location: Estes Park, CO
Posts: 3,931
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Routing
Whichever you decide, consider how the cable or tube will transverse the bellcrak and or AP servo.
__________________
Larry Larson
Estes Park, CO
http://wirejockrv7a.blogspot.com
wirejock at yahoo dot com
Donated 12/03/2019, plus a little extra.
RV-7A #73391, N511RV reserved (2,000+ hours)
HS SB, empennage, tanks, wings, fuse, working finishing kit
Disclaimer
I cannot be, nor will I be, held responsible if you try to do the same things I do and it does not work and/or causes you loss, injury, or even death in the process.
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05-17-2016, 10:36 AM
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Join Date: Oct 2015
Location: Indianapolis, IN
Posts: 254
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Something I hadn't thought of.
Is it a particular brand of servo that goes in the wing instead of the fuse? And where does it go?
__________________
Stu F.
RV8
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05-17-2016, 10:49 AM
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Senior Curmudgeon
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Join Date: Sep 2005
Location: Dayton Airpark, NV A34
Posts: 15,408
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The servo is often mounted in the same bay as the aileron bell crank.
One more item that some folks install is a camera-----infrared or other.
Also, APARS tracking unit.
Leading edge landing lights? or wing tip? Flash the landing lights or separate wigwag lights?
__________________
Mike Starkey
VAF 909
Rv-10, N210LM.
Flying as of 12/4/2010
Phase 1 done, 2/4/2011
Sold after 240+ wonderful hours of flight.
"Flying the airplane is more important than radioing your plight to a person on the ground incapable of understanding or doing anything about it."
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05-17-2016, 10:57 AM
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Join Date: Jan 2005
Location: Tampa, FL
Posts: 2,861
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A couple things that could also be wing mounted: aileron trim servo and OAT sensor.
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Todd "I drink and know things" Stovall
PP ASEL-IA
RV-10 N728TT - Flying!
WAR EAGLE!
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05-17-2016, 01:42 PM
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Join Date: May 2005
Location: Savannah, GA
Posts: 1,301
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Better to run a few too many than one too few.
On my -9A, it was a real pain to run wires from the wing through the fuselage to the panel, so plan for that as well.
Consider if you want quick disconnects at the wing root.
Make your wires plenty long (service loops). The rule is that the wire should be long enough to allow you to put on a new connector three times.
Mark or use colored wires.
Got to rewire one wing of the -9A when we upgraded the avionics, and it the previous installer had done some of these things...
Ed
__________________
RV-9A at KSAV (Savannah, GA; dual G3X Touch with autopilot, GTN650, GTX330ES, GDL52 ADSB-In)
Previously RV-4, RV-8, RV-8A, AirCam, Cessna 175
ATP CFII PhD, so I have no excuses when I screw up
2020 dues slightly overpaid
Retired - "They used to pay me to be good, now I'm good for nothing."
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05-17-2016, 02:10 PM
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Join Date: Oct 2015
Location: Indianapolis, IN
Posts: 254
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Quote:
Originally Posted by Mike S
The servo is often mounted in the same bay as the aileron bell crank.
One more item that some folks install is a camera-----infrared or other.
Also, APARS tracking unit.
Leading edge landing lights? or wing tip? Flash the landing lights or separate wigwag lights?
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Ideally, landing lights in the tips and separate LED strobes. But it seems it could get pretty crowded out there.
__________________
Stu F.
RV8
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