REFLECTOR: Canard Center Hinge

[steve korney]

Richard...

Be-careful... Other wise the elevator will start acting like elevons... They should never move independently... I had my sparrow strainer on the left and the trim spring on the right...

Steve 



From: richard at naples-air-center.com
Date: Mon, 21 Mar 2011 19:14:14 -0400
To: reflector at tvbf.org
Subject: Re: REFLECTOR: Canard Center Hinge

Question I have, I attached the Sparrow on the right side elevator and I have the trim spring attached to the left side elevator torque tube. I am wondering if this is contributing to the issue since they are opposing forces on the elevator. 
I am wondering if it would be worth moving the sparrow to the left elevator so the trim spring and sparrow are on the same side. (Due to the avionics there was no room for the trim spring on the right elevator torque tube.)
Is there a specific reason the factory calls for the trim spring on the left and the sparrow on the right?
Richard

Sent from my iPhone 4
On Mar 21, 2011, at 12:23 PM, "Richard J. Gentil" <richard at naples-air-center.com> wrote:

Al,
That would be fantastic thank you!
Richard

Sent from my iPhone 4
On Mar 21, 2011, at 1:03 PM, "Al Gietzen" <ALVentures at cox.net> wrote:





Richard;

 

I used self-aligning ball bearings that
bolt to the center pivot support.  The o.d. of these bearings fit snugly
inside the ends of the torque tubes (concentric version). I haven’t been
able to find a photo. With some research I could probably find the bearing part
# (from Aircraft Spruce). 

 

Al 

 

-----Original Message-----

From: reflector-bounces at tvbf.org
[mailto:reflector-bounces at tvbf.org] On Behalf
Of Richard J. Gentil

Sent: Sunday, March 20, 2011 11:16
AM

To: Velocity Aircraft Owners and
Builders list

Subject: Re: REFLECTOR: Canard
Center Hinge

 



Dennis,





 





I would appreciate pictures and yes I am talking about
the bushing dead center. 





 





Richard



Sent from my iPhone 4







On Mar 20, 2011, at 1:21 PM, Dennis Martin <dennis.doc at gmail.com> wrote:







Are we
talking about the bushing at dead center between the two elevators? If so, I
redesigned that. I inserted needle bearings inside each elevator tube. Next I
took a steel shaft (recycled from an electric motor) and inserted it in
aluminum fork in the middle. Now each elevator tube slides into the steel
shaft. No way for it to work loose. I can send photos if anyone's interested.



Dennis



On Sat, Mar 19, 2011 at 9:25 PM, Richard J. Gentil
<richard at naples-air-center.com>
wrote:





I was
on my third test flight today and I noticed the elevators  were no longer
trailing at the same angle so I landed immediately. Here are the shots from
5,500 feet at 120kts IAS (130kts TAS). 



(Second picture of the canard will be in the next
email.)



After landing I seem to have some play at the oilite bushing. Everything else
is tight from what I can tell. All that is left is the bushing. From what I am
guessing is that the left elevator has the pressure of the pitch trim spring
and the right elevator has the downward pressure of the sparrow strainer. 



Any ideas would be helpful. My plan is to remove the canard and examine the
oilite bushing. 



Richard



Sent from my iPhone 4







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-- 

All the best,

Dennis









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