|
-
POSTING RULES

-
Donate yearly (please).
-
Advertise in here!
-
Today's Posts
|
Insert Pics
|

06-15-2019, 07:42 AM
|
|
|
|
Join Date: Apr 2008
Location: Riley TWP MI
Posts: 3,070
|
|
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.
__________________
Joe Gores
RV-12 Flying
|

06-15-2019, 08:04 AM
|
 |
|
|
Join Date: Nov 2014
Location: Hinckley, Ohio
Posts: 2,065
|
|
Quote:
Originally Posted by Mich48041
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.
__________________
-
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
|

06-15-2019, 08:27 AM
|
 |
|
|
Join Date: Sep 2012
Location: Omaha, NE (KMLE)
Posts: 2,247
|
|
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!
__________________
Dale
Omaha, NE
RV-12 # 222 N980KM "Screamin' Canary" (bought flying)
Fisher Celebrity (under construction)
Previous RV-7 project (sold)
|

06-15-2019, 08:42 AM
|
 |
|
|
Join Date: Nov 2014
Location: Hinckley, Ohio
Posts: 2,065
|
|
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...
__________________
-
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
|

06-15-2019, 08:58 AM
|
|
|
|
Join Date: Apr 2008
Location: Riley TWP MI
Posts: 3,070
|
|
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.
__________________
Joe Gores
RV-12 Flying
|

06-15-2019, 09:48 AM
|
 |
|
|
Join Date: Jul 2005
Location: Hubbard Oregon
Posts: 9,035
|
|
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.
__________________
Opinions, information and comments are my own unless stated otherwise. They do not necessarily represent the direction/opinions of my employer.
Scott McDaniels
Van's Aircraft Engineering Prototype Shop Manager
Hubbard, Oregon
RV-6A (aka "Junkyard Special ")
|

06-15-2019, 01:31 PM
|
 |
|
|
Join Date: Mar 2010
Location: KSGJ / TJBQ
Posts: 2,039
|
|
Quote:
Originally Posted by Mich48041
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.
__________________
Galin
CP-ASEL-AMEL-IR
FCC Radiotelephone (PG) with Radar Endorsement
2020 Donation made
www.PuertoRicoFlyer.com
|

06-15-2019, 10:22 PM
|
 |
|
|
Join Date: Sep 2012
Location: Omaha, NE (KMLE)
Posts: 2,247
|
|
Quote:
Originally Posted by Piper J3
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.
__________________
Dale
Omaha, NE
RV-12 # 222 N980KM "Screamin' Canary" (bought flying)
Fisher Celebrity (under construction)
Previous RV-7 project (sold)
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
All times are GMT -6. The time now is 03:19 AM.
|