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AoA - Angle of Attack Indicator

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DuaneFamly(at)aol.com
Guest

Posted: Sat Oct 26, 2019 6:49 pm Post subject: AoA - Angle of Attack Indicator

James, 

The type I use is a pressure type. It has two very small plastic hoses that come from the pressure port in the wing, through a pair of connectors at the wing root, to the module behind the instrument panel. There is also a switch that you incorporate into your flap mechanism to tell the module that you have lowered your flaps. During your initial flight testing, you will perform several maneuvers and save the pressure settings during those maneuvers. So your clean stall will have a different parameter saved than your dirty stall. The flap switch tells it which one to use. 

If you go back to the Aircraft Spruce website, look up the part number again, then click on “Documents” and it’ll take you to the install and operating manual. You can then see the tubing, CPU, switches, and indicator. All the info about it is there for you to see. 

Now as for getting the small tubes through your wing, I don’t have any idea what you will have to do to achieve that. Are your wings foam filled? Do you have a channel for any wires, say from your wingtip lights?



Sent from my iPhone



 	  Quote: 	
		   On Oct 26, 2019, at 5:19 PM, Mallard <james(at)kingdom.ie> wrote:

 

 

 

 Hi Mike,

 I found your AoA system on Aircraft Spruce but they don't show the Vane part, only showing the cabin display. The cost is the cheapest I've seen but I was wondering if it (or any model) could be retro-fitted to an existing 1995 Classic. 

 

 Would you be able to post photos of your Vane installation? If it protrudes from the end of the wing, is it susceptible to damage?

 

 Cheers

 James

 

 --------

 Seat of my pants

 

 

 

 

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 http://forums.matronics.com/viewtopic.php?p=491990#491990

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Duncan McFadyean

Joined: 18 Jan 2011
Posts: 219

Posted: Sun Oct 27, 2019 4:15 am Post subject: AoA - Angle of Attack Indicator

Yes. Rite_Angle III. Couldn't get it to work.



Duncan McF.



 	  Quote: 	
		   On 25 October 2019 at 22:30 Mallard <james(at)kingdom.ie> wrote:

 

 

 

 

 Has anyone ever fitted an AoA Indicator to their Europa? If yes, what model did you fit and was there a reason why you selected that particular model?

 

 Cheers

 James

 

 --------

 Seat of my pants

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=491973#491973

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khickling

Joined: 18 Feb 2018
Posts: 3
Location: new zealand

Posted: Sun Oct 27, 2019 3:24 pm Post subject: AoA - Angle of Attack Indicator

Hi Mallard,

I fitted the Advanced Flight Systems AOA Sport, which uses the differential 

pressure between 2 pressure ports on the upper and lower wing surface as 

well as the pitot and static pressures. It can be separately calibrated for 

both flaps up and down. It is an adaption of a US Navy system.



It works well although it has only 8 LED indicators (red, orange green) so 

the resolution is not very high. But it does indicate impending stall, even 

in a high g manoeuvre. The newer version of the aoa pro system apparently 

uses the Dynon aoa probe instead of the pressure ports, but I think the 

sport still uses the pressure ports.



https://www.advancedflightsystems.com/advanced-aoa.php



Regards,

Keith.

--

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