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01-29-2019, 09:45 PM
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Join Date: May 2017
Location: Grass Valley, CA
Posts: 8
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RV-12 AOA retrofit
I purchased a previously built RV-12 and have decided to install the Van's Angle of Attack kit. On page 3, step 16 of the Notification 16-12-14 (Angle of Attack Installation), the instructions call for routing tubing from the ADAHRS along the same route as the aft pitot tube hose - then through the left side F-1215 seat rib snap bushings. Has anyone accomplished the routing through the F-1215? Any recap of how this was done would be appreciated.
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01-30-2019, 06:56 PM
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Join Date: Jan 2018
Location: Birmingham, AL
Posts: 207
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AOA Upgrade
I purchased the Van's AOA kit last summer and installed it. I have slept since then so I don't remember all the details. I had the floor panels and the aft bulkhead out. I do remember having to drill some holes and I think Van's provide some 3/4 inch grommets to go in the holes. Van's provides very specific instructions for mounting the connector to the left wing. I ran the tubing from that connector under the pilot's seat, through the center tunnel and back behind the aft bulkhead and then routed it with the tubing for the pitot tube to the AHARS.
In the wing I ran the tubing through the j channel to where it connects to a rivet. I have a fiberglass wire guide (like a fishing pole with out the eyelets for line) that electricans use and I used it to help get the tubing from the wing edge to the location of the rivet.
The hardest part of the process was getting the mandrell out of the rivet. I could not pound it out like the instructions say. After calling Eric at Van's, he told me to cut it off and use a self-centering punch on it. One push and the broke it loose and I got it out then.
I was also installing ADS-B in and out at the time so I already had all the floor panels and aft bulkhead out when I ordered the AOA kit.
The instructions are good and help is a phone call away. Van's gives excellent phone help.
__________________
John D. Young, RV-12 Owner
Serial Number 120022, N6812Y
Bought it as a flying airplane in Feb. 2018
Just passed 240 hours flight time in RV-12, and 10,000 hours mostly in corporate jets. I am a CFI; CFII; MEI; and a advancd Ground Instructor, CFIG; and hoping to be able to help new RV-12 owners by doing some transition training for new builders and owners in RV-12's.
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01-31-2019, 11:08 AM
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Join Date: Jan 2015
Location: Netherlands
Posts: 110
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Dynon AOA in spinner
Anyone of you tried this AOA/pitot combination?
https://www.dynonavionics.com/includ...Dimensions.pdf
It saves the hassle of hull/wing attach points, and looks to have dimensions that could fit right out of the box?
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Hans Labruyere
build & sold project Kitfox IV
Project bought & building RV12 #120742
Donation 2020 paid
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01-31-2019, 11:30 AM
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Join Date: Nov 2014
Location: Hinckley, Ohio
Posts: 2,065
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To be perfectly honest... I fly my legacy 12 and also a newer 12 with dual HDX and AOA. The chirping from the AOA is enough to drive you crazy. And when coupled with the stall warning on landing - kinda makes you want to get out and walk. If you set stab trim and power for a stabilized approach it is very easy to monitor IAS. Approach should be stabilized for IAS, power, stab trim, and be on runway centerline as you turn from base to final.
Just my opinion - don't shoot me...
__________________
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Jim Stricker
EAA #499867
PPL/ASEL 1970 - Sport Pilot since 2007
80 hrs Flying Aeronca Chief 11AC N86203
1130 hrs Flying 46 Piper J-3 Cub N6841H
Bought Flying RV-12 #120058 Oct 2015 with 48TT - Hobbs now 622 
LSRM-A Certificate 2016 for RV-12 N633CM
Special Thanks... EJ Trucks - USN Crew Chief A-4 Skyhawk
MJ Stricker (Father & CFI) - USAAF 1st Lt. Captain B-17H
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01-31-2019, 11:39 AM
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Join Date: Sep 2012
Location: Omaha, NE (KMLE)
Posts: 2,247
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Quote:
Originally Posted by Piper J3
To be perfectly honest... I fly my legacy 12 and also a newer 12 with dual HDX and AOA. The chirping from the AOA is enough to drive you crazy. And when coupled with the stall warning on landing - kinda makes you want to get out and walk. If you set stab trim and power for a stabilized approach it is very easy to monitor IAS. Approach should be stabilized for IAS, power, stab trim, and be on runway centerline as you turn from base to final.
Just my opinion - don't shoot me...
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Hmm. I set up AoA on mine, using methods posted here well before Van's made their retrofit kit available. It's an older RV-12 with a D180 panel. After calibration it's pretty nice. I disconnected the stall warning entirely. The AoA was useless until after I calibrated it, which was fairly simple. Maybe yours isn't well calibrated? You can also adjust the volume. I actually need to bump mine up a little, it's not quite loud enough. I hear it fine, because I'm listening for it, but it's not loud enough to really grab your attention.
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Dale
Omaha, NE
RV-12 # 222 N980KM "Screamin' Canary" (bought flying)
Fisher Celebrity (under construction)
Previous RV-7 project (sold)
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01-31-2019, 01:33 PM
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moderator
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Join Date: Dec 2004
Location: Mill Creek, WA
Posts: 617
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Quote:
Originally Posted by Piper J3
...And when coupled with the stall warning on landing - kinda makes you want to get out and walk.
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Jim, I?m with you, and that is why I?ll be omitting the standard stall warning on mine, AoA is a much better system as is widely acknowledged. Of course adjust the audio volume so that you are aware of it but not overwhelmed or too annoyed by it.
I think the real value of any sort of stall warning is not in standard straight ahead landings, but rather in warning of an impending accelerated stall in non-routine situations where you might not expect it.
__________________
Randy Lervold
RV-12iS, empennage/tailcone complete, wings currently, fuse in box
RV-3B, first flight 2007 - sold
RV-8, first flight 2001 - sold
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11-10-2019, 07:04 AM
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Join Date: Jul 2017
Location: Omaha, NE
Posts: 42
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Both wings?
I just got my AOA Retrofit kit. Instructions say to remove both wings. I have removed both for the condition inspection, but is it necessary to remove both if you remove one - like for balance or something? Naive of me, I know, but...
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11-10-2019, 02:58 PM
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Join Date: Feb 2008
Location: Hartlepool, England
Posts: 183
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Wing removal
Quote:
Originally Posted by Strappe
I just got my AOA Retrofit kit. Instructions say to remove both wings. I have removed both for the condition inspection, but is it necessary to remove both if you remove one - like for balance or something? Naive of me, I know, but...
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Not with you here. Every time you remove the wings there is always one left on. I?ve had no problems with only one wing on.
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12-07-2019, 08:49 AM
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Join Date: Jul 2017
Location: Omaha, NE
Posts: 42
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Quote:
Originally Posted by Jamesey
Not with you here. Every time you remove the wings there is always one left on. I?ve had no problems with only one wing on.
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My apologies for a dumb question. After posting it, I discovered that one cannot get access to the area where one needs to do some work for the AOA kit without removing both wings. I did not know that when I asked the question. Instead, I assumed the reason to remove both was for some other reason, like balance.
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12-07-2019, 05:36 PM
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Join Date: Dec 2015
Location: Scottsdale, Arizona
Posts: 189
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That was the reason I waited to install mine until annual.
As a previous poster mentioned it?s a very good system. You have the visual reference and if you setup according to the manual from Garmin (I?m running G3Xs) I only ever hear a tone when I would expect to (high AOA in the landing flare). The visual bar system is excellent, this is a great tool.
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