REFLECTOR: AOA indicator

Mon Nov 7 22:25:01 CST 2011

I thought an AOA on a canard would have to take into account the 
elevator position?

Since the trailing edge of the elevator on the canard establishes the 
chord, the AOA would have to be determined for that chord on the 
canard.  The AOA for the fuselage is the same as for the canard if you 
disregard the variable chord provided by the elevators.  If you are 
flying fast, you may get 1 degree for your angle of attack fuselage.  
Slow down, and pull back on the stick, you could also get the same 1 
degree AOA for the fuselage, but the canard would be flying at a higher AOA.

Or do I have this all wrong?

On 11/07/2011 11:03 AM, Glenn Babcock wrote:
> This installation looks like it works well for a FG, but on a retract 
> it doesn't work.  That's why I went with the right angle mount on the 
> side of the fuselage under the canard.  I'll try to find some pictures.
>
> I think that the AOA is very useful on a canard.  We don't have a 
> stall warning system, so this gives us one.  The display shows you a 
> range of green, yellow and red.  When you hit the red expect the 
> canard to stall and the nose to drop.  There is a noticeable 
> difference in the airspeed at which this occurs, depending on if you 
> have a passenger up front or not.  I find it helps to keep the landing 
> speeds down while knowing that you are not about to drop it in.
>
> Regards,
> Glenn
>
> N697RG
> Elite RG, flying
>
> On Nov 7, 2011, at 8:23 AM, Ruben Creus wrote:
>
>> By the way, there is the picture of where it is installed. Just under 
>> the nose.
>>
>> I think I like symmetry, so I did not like it hanging out on one 
>> side. In the center looks nice and reads great so far!
>>
>> P.D.: This model comes with angle of attack reader, but you can read 
>> it only if you have a dynon unit. Not that you really used too much 
>> with a canard, bit nice thing to show off ;-)
>>
>> <image002.jpg>
>>
>> ------------------------------------------------------------------------
>>
>> *From:*Chris Barber [mailto:cbarber at texasattorney.net]
>> *Sent:* Saturday, November 05, 2011 5:42 PM
>> *To:* Velocity Aircraft Owners and Builders list
>> *Cc:* Velocity Aircraft Owners and Builders list
>> *Subject:* Re: REFLECTOR: heated pitot
>>
>> Not sure of the compatibility or if it is an issue, but Dynon has a 
>> heated pitot for $450 IIRC. Much cheaper than most I think.
>>
>> Chris
>>
>> Sent from my iPhone 4
>>
>>
>> On Nov 5, 2011, at 3:44 PM, "Laurence Coen" <lwcoen at hotmail.com 
>> <mailto:lwcoen at hotmail.com>> wrote:
>>
>>> Lou,
>>>
>>> I have a surplus shark fin pitot static on the nose of my plane.  
>>> The static port doesn't work because the pressure wave from the nose 
>>> messes up the static reading but the pitot works fine and it's 
>>> heated.  I think you would need about a 3 foot boom to get the 
>>> static port to work but I expect you already have a separate static 
>>> port.  If you look in the AS catalog you wont be happy at the 
>>> prices.  Try this link.
>>>
>>> http://www.barnstormers.com/classified_597429_Shark+fin+Pitot+head.html
>>>
>>> Larry Coen
>>>
>>> N136LC
>>>
>>> *From:*Lou Stedman <mailto:stedmanlou at roadrunner.com>
>>>
>>> *Sent:*Saturday, November 05, 2011 2:49 PM
>>>
>>> *To:*Velocity Reflector <mailto:reflector at tvbf.org>
>>>
>>> *Subject:*REFLECTOR: heated pitot
>>>
>>> My standard Velo is an older model and is equipped with a VOR, ILS, 
>>> and a GPS for IFR. Unfortunately it does not have a heated pitot, 
>>> which I understand is required to have it IFR certified. I am 
>>> planning on installing a heated pitot this winter and was wondering 
>>> what others have used. Any tips or suggestions would be appreciated. 
>>> Thanks
>>>
>>> Lou Stedman
>>> Velocity SEFG
>>> N7044Q
>>> Olean, NY
>>>
>>> ------------------------------------------------------------------------
>>>
>>> _______________________________________________
>>> To change your email address, visit 
>>> http://www.tvbf.org/mailman/listinfo/reflector
>>>
>>> Visit the gallery! www.tvbf.org/gallery <http://www.tvbf.org/gallery>
>>> user:pw = tvbf:jamaicangoose
>>> Check new archives: www.tvbf.org/pipermail 
>>> <http://www.tvbf.org/pipermail>
>>> Check old archives: http://www.tvbf.org/archives/velocity/maillist.html
>>>
>>> _______________________________________________
>>> To change your email address, visit 
>>> http://www.tvbf.org/mailman/listinfo/reflector
>>>
>>> Visit the gallery! www.tvbf.org/gallery <http://www.tvbf.org/gallery>
>>> user:pw = tvbf:jamaicangoose
>>> Check new archives: www.tvbf.org/pipermail 
>>> <http://www.tvbf.org/pipermail>
>>> Check old archives: http://www.tvbf.org/archives/velocity/maillist.html
>>>
>> _______________________________________________
>> To change your email address, visit 
>> http://www.tvbf.org/mailman/listinfo/reflector
>>
>> Visit the gallery! www.tvbf.org/gallery <http://www.tvbf.org/gallery>
>> user:pw = tvbf:jamaicangoose
>> Check new archives: www.tvbf.org/pipermail 
>> <http://www.tvbf.org/pipermail>
>> Check old archives: http://www.tvbf.org/archives/velocity/maillist.html
>
>
> _______________________________________________
> To change your email address, visit http://www.tvbf.org/mailman/listinfo/reflector
>
> Visit the gallery!  www.tvbf.org/gallery
> user:pw = tvbf:jamaicangoose
> Check new archives: www.tvbf.org/pipermail
> Check old archives: http://www.tvbf.org/archives/velocity/maillist.html

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.tvbf.org/mailman/private/reflector/attachments/20111107/b9175395/attachment-0001.htm>