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  #11  
Old 06-15-2019, 07:42 AM
Mich48041 Mich48041 is offline
 
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Location: Riley TWP MI
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Jim, the D-180 has the AOA feature. DOWNLOAD the instructions from Van's. The only thing that you need from the instructions is where to drill the hole in the wing for the AOA port. That port is just a rivet which is the same as those used for the static ports. Connect tubing from the rivet to the D-180. A quick connect fitting at the wing root is optional. I ran the tubing along the inside of the fuselage where it is out of sight.
- The wings can stall at any airspeed when in a turn. But they will always stall at the same angle of attack for a specific flap setting.
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  #12  
Old 06-15-2019, 08:04 AM
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Piper J3 Piper J3 is offline
 
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Quote:
Originally Posted by Mich48041 View Post
The wings can stall at any airspeed when in a turn. But they will always stall at the same angle of attack for a specific flap setting.
Thanks Joe... I think I'll stay with nice quiet solitude and just continue to remain vigilant for airspeed / bank angle. Shallow bank (always) for the base-to-final turn with constant attention to airspeed.
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Jim Stricker
Hinckley, Ohio (1OA2)
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
RV-12 E-LSA #120058 AWC July 2012 N633CM
RV-12 Bought Flying Oct 2015 with 48TT - Hobbs now 441

LSRM-A Certificate 2016
Special Thanks... EJ Trucks - Crew Chief A-4 Skyhawk
and MJ Stricker (CFI) - 1st Lt. Captain B-17H
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  #13  
Old 06-15-2019, 08:27 AM
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DaleB DaleB is offline
 
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Location: Omaha, NE (KMLE)
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Jim,

I switched to AOA a couple years back. It's really nice to have, especially to build more awareness of one's AOA during more "sporting" flying. I don't miss the old vane-switch stall warning one bit. That said... if you're happy with it, great!
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Omaha, NE
RV-12 # 222 N980KM "Screamin' Canary" (bought flying)
Fisher Celebrity (under construction)
Previous RV-7 project (sold)
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  #14  
Old 06-15-2019, 08:42 AM
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Piper J3 Piper J3 is offline
 
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So, when you install AOA you removed the stall warning vane?

My friend's one-year old Synergy RV-12 with dual Dynon HDX has both stall warning and AOA. Lots of sirens as you slow for landing...
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Jim Stricker
Hinckley, Ohio (1OA2)
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
RV-12 E-LSA #120058 AWC July 2012 N633CM
RV-12 Bought Flying Oct 2015 with 48TT - Hobbs now 441

LSRM-A Certificate 2016
Special Thanks... EJ Trucks - Crew Chief A-4 Skyhawk
and MJ Stricker (CFI) - 1st Lt. Captain B-17H
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  #15  
Old 06-15-2019, 08:58 AM
Mich48041 Mich48041 is offline
 
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Location: Riley TWP MI
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No, the stall warning is not removed. Keep both AOA and stall vane. The AOA audio starts ticking as stall is approached, kind of like Morse Code. As the AOA increases, so does the length of the audio tones, from ticks, to dits, to dahs, and to a solid tone at stall. After flying with AOA for awhile, you will wonder how you ever got along without it. One time I made a steep turn from downwind to base and the AOA stated ticking, even though the airspeed was well above normal stall speed. So I relaxed back pressure on the stick.
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  #16  
Old 06-15-2019, 09:48 AM
rvbuilder2002 rvbuilder2002 is offline
 
Join Date: Jul 2005
Location: Hubbard Oregon
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I big safety benefit of AOA is in situations that are not normal flight operations.... such as a forced landing after an engine failure.
It can be a high stress situation.... possibly with some last minute maneuvering at low airspeed. AOA could prevent an inadvertent stall.
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  #17  
Old 06-15-2019, 01:31 PM
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GalinHdz GalinHdz is online now
 
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Location: KSGJ / TJBQ
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Quote:
Originally Posted by Mich48041 View Post
After flying with AOA for awhile, you will wonder how you ever got along without it.


At least for me, once I started using AOA all my landings are super smooth. My passengers even think I know what I am doing now.
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  #18  
Old 06-15-2019, 10:22 PM
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DaleB DaleB is offline
 
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Location: Omaha, NE (KMLE)
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Quote:
Originally Posted by Piper J3 View Post
So, when you install AOA you removed the stall warning vane?
I did not remove it, but I did disconnect it. Figured I may want it again some day. After the thing tore a hole in another pair of jeans, I think during the next CI we'll remove the vane.
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Omaha, NE
RV-12 # 222 N980KM "Screamin' Canary" (bought flying)
Fisher Celebrity (under construction)
Previous RV-7 project (sold)
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