REFLECTOR: Fwd: Aileron Rigging

[Robert Wood]

Actually Velocity did some work trying to get the upper aileron movement distance to be greater than the lower movement distance when the stick is moved to induce a roll.. It is the one going down (on the 'upper' wing) that produces the drag that pulls the nose the wrong way. (Adverse yaw). This is likely not the only reason, but it contributes.

Velocity did some work to try to get the ailerons to move further up than down with a given stick deflection, so as to reduce adverse yaw. I think they decided to just "lead with the rudder" on turns in the pattern, and that works for me.



Bob Wood


-----Original Message-----
From: Velocity <VelocityXL at fastmail.fm>
To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
Sent: Tue, Sep 6, 2011 5:45 pm
Subject: Re: REFLECTOR: Fwd: Aileron Rigging


Interesting the manual now says 90 Deg angle from the cable to the arm  I know my manual did not say that . Next time I 
am at my hanger I will have to look at the manual  I am sure it was 110 deg. Of something close to that.
 

Per the manual  When the stick is
fully deflected, you should get at least 2-3/8" of deflection at the inboard trailing
edge of the ailerons, both up and down. A properly rigged system will get approximately
2-1/2” of both up and down travel.

----- Original Message ----- 
From: Lawrence Epstein 
To: Velocity Aircraft Owners andBuilders list 
Sent: Tuesday, September 06, 2011 4:00 PM
Subject: REFLECTOR: Fwd: Aileron Rigging










I thought that it was better to have asymmetric displacement, i.e. More down aileron than up (equal side to side) in order to minimize adverse yaw?

Larry Epstein 
173 FGE

On Sep 6, 2011, at 5:23 PM, "Velocity" <VelocityXL at fastmail.fm> wrote:


I had the same problem worked on it for what seemed like forever. My problem was the push pull cable angle.

It has to be 90 degrees to the arm.   The manual gave some angle of 110 I think that did not work for me  at all.

Once I got it to 90 both up and down were equal. Worked for me   good luck



Ron

----- Original Message ----- From: "Alex Balic" <velocity_pilot at verizon.net>

To: "'Velocity Aircraft Owners and Builders list'" <reflector at tvbf.org>

Sent: Tuesday, September 06, 2011 8:55 AM

Subject: REFLECTOR: Aileron Rigging






For all those that have been here and solved this fun Geometry puzzle:





I have just been around to checking my flight control throws, since


hopefully they will be put to actual use soon, and my ailerons are a bit out


of adjustment-


Symptom: Both ailerons have 4" of throw (as measured at the inboard end) but


the right one has "normal" movement with 2-1/2" inches down, and 1-1/2


inches up. But the left side is exactly the opposite, with more throw up


than down.





1) both ailerons are exactly neutral with stick neutral.


2) both aileron  control arms are at the same angle with respect to the


wing/aluminum brackets when neutral.


3) stick throw seems to be identical right and left, but I don't think that


any slight difference in this would cause this particular problem.








The only thing I can think of is that the horn on the keel end of the


aileron torque tube is not exactly aligned with the stick,- I was not able


to directly measure this yesterday since there is a lot of stuff back there.





Any help would be appreciated.





Thanks


Alex





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