REFLECTOR: Another aerodynamic question

[Alex Balic]

I think that the problem that Dave has is that the elevators are not lined
up with each other- this could be more difficult to fix- other than welding
and re-drilling, the elevators are fixed in position to their bell crank
arms, so changing the rod end would move them both the dame distance- not
too sure how to move just one- and it would certainly cause a rolling moment
if one since of the canard is generating more lift than the other....

-----Original Message-----
From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of Scott Derrick
Sent: Saturday, July 08, 2006 8:59 AM
To: Velocity Aircraft Owners and Builders list
Subject: Re: REFLECTOR: Another aerodynamic question

Dave,

The elevators can get out of alignment.  Its easy to adjust. Under the 
panel is a long 3/8 bolt that attaches the two elevators together, there 
is a spacer and the control rod end between the two elevator attach 
tabs, loosen the bolt/nut. Either move the elevators so they are even, 
or have somebody outside hold them so they are even,  then tighten the 
bolt.

If this doesn't make sense just look under the panel, follow the 
elevator control rod from the stick up to the elevator and you will see 
how they are attached together and  how the adjustment can be made.

Scott

Dave Philipsen wrote:
> I was doing a little 'transition training' today with Curt Smith, a CFI 
> in southern IL who also happens to be a Cozy flyer.  We slowed the Velo 
> down until we started to get the slight oscillation in pitch from the 
> canard as it started to stall. With the two of us and full fuel, the 
> airspeed indicator indicated that to be about 65-70 kts.  At this slow 
> speed, we both noticed a tendency for the plane to roll to the left a 
> little.  The roll could be corrected with a little right rudder but the 
> response from the ailerons was a bit sluggish at that slow speed.  We 
> also noticed that the trailing edge of the canard elevator is just a bit 
> higher on the right side than on the left.  It seemed to be maybe 
> 1/4-inch to 3/8-inch higher.  My first question is:  can this be 
> adjusted out?  Secondly:  Could it be the cause of the left rolling 
> tendency near canard stall speed?  I also noticed just a slight left 
> turning tendency even at cruise.  My ailerons appear to be flush with 
> both wings at their neutral position.
>
>   

-- 

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destroying entire perceptual sets, cultures, and realities. Outlawed by all
governments everywhere. Possession is normally punishable by death.

    Richard Childers 

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