REFLECTOR: Canard incidence

Al Gietzen ALVentures at cox.net
Fri Oct 13 10:35:19 CDT 2006


Jerry;

 

We're flying with the CG pretty much in the middle of the "first flight"
box.  My engine installation is a bit heavier, and the panel lighter, so I
had to add ballast in the nose for single pilot operation.  IIRC; with the
ballast, the weight on the nose wheel is about 80#.

 

Al

 

Al - I am very interested in hearing responses to this question as I am 

getting close to first flight.

 

How did your weight and balance turn out?  I assume that you are not aft 

loaded...  How much weight do you have on the nose wheel under empty 

conditions?

 

Jerry Teitsma

 

970-887-3910 (Phone/Fax)

jerryteits at comcast.net

 

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Sent: Friday, October 06, 2006 11:00 AM

Subject: Reflector Digest, Vol 29, Issue 10

 

 

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>   1.  Canard incidence (Al Gietzen)

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> Message: 1

> Date: Fri, 6 Oct 2006 09:58:49 -0700

> From: "Al Gietzen" <ALVentures at cox.net>

> Subject: REFLECTOR: Canard incidence

> To: "reflector" <reflector at tvbf.org>

> Message-ID: <000001c6e968$b1f4d140$6400a8c0 at BigAl>

> Content-Type: text/plain; charset="iso-8859-1"

>

> I?m getting too much lift on the canard, and it stalls at too high a speed

> on approach. I was surprised, because the incidence gage is exactly on

> center when the plane is level.  I guess it is too late to be annoyed to

> find that I shouldn?t be surprised, because the WingCo canard has a 8-9?

> wider span, and it has more upper surface camber.  But you?ve got to 

> wonder

> why I wasn?t provided with an appropriate gauge, or at least warned that 

> the

> incidence may need to be reduced, you know; a few years ago before it was

> all fitted in and painted.

>

>

>

> Anyway, I suspect I?m not the first to have to do this, so thought I?d see

> if there are any tips I should know.  We?re seeing about 1 ?? trailing 

> edge

> up at 175 kias with about 400 pounds in the 2 front seats, and it is 

> feeling

> like incipient stall on approach with gear down when below about 90 kias,

> and only about 1/2? trailing edge down on landing (hot landing). Clean 

> stall

> (buffeting) is just below 70 kias, and 1 ? - 2? trailing edge down.  I

> assume it is a matter of shimming the attach points, and fitting 

> everything

> else up.  Of course it would be nice to know how much, or at least a good

> starting point.  Or is there some easier solution?

>

>

>

> Thanks,

>

>

>

> Al

>

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