REFLECTOR: WEIRD STICK PROBLEMS

[Jim Sower]

Is it possible that one aileron is a little warped so that it is its own 
trim tab??

Wayne wrote:

> Make sure the ball really is centered with the wings level on the ground.
> ----- Original Message ----- From: "Scott Baker" <sbakr at comcast.net>
> To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
> Sent: Monday, May 09, 2005 11:05 PM
> Subject: Re: REFLECTOR: WEIRD STICK PROBLEMS
>
>
>> Q:  At a medium cruise speed ... say 175K indicated ... level the 
>> wings using ailerons only to achieve straight flight ... Where is the 
>> ball? Sounds like you might need the left rudder shimmed out - or - 
>> the right rudder relieved so that it comes inboard - or perhaps a 
>> combination of both ... not a lot ... try about 1/8th of travel at 
>> first ... see what happens.
>> SB
>>
>> ----- Original Message ----- From: "Tom Martino" 
>> <tmartino at troubleshooter.com>
>> To: <reflector at www.tvbf.org>
>> Sent: Monday, May 09, 2005 7:37 PM
>> Subject: REFLECTOR: WEIRD STICK PROBLEMS
>>
>>
>> I thought my plane was rigged wrong ... or that I had a heavy wing ...
>> but NOT so.
>>
>>
>>
>> Please read the background and give me your thoughts:
>>
>>
>>
>> My plane has a tendency to turn to the right (ball in center) but the
>> right wing drops a lot!
>>
>>
>>
>> The incidence is fine ... the rigging is fine ... I even put a trim tab
>> on the right wing ... and adjust it severely "up" to lift the wing.  It
>> did NOTHING to help.
>>
>>
>>
>> My conclusion, after many hours of flying is that the stick itself (in
>> the plane) has a weird pressure on it when under an air "load",  The
>> stick wants to snap to the right (meaning the bottom of the stick snaps
>> or pulls to the left).
>>
>>
>>
>> Something strange is going on.  The tendency begins when ground rolling
>> and gets worse with speed!
>>
>>
>>
>> Why?  I don't know!
>>
>>
>>
>> Is it in the design ... the way the elevator push-pull rod attaches to
>> the stick?
>>
>>
>>
>> Does air movement over the elevator somehow put side pressure on the
>> stick?
>>
>>
>>
>> I am baffled.
>>
>>
>>
>> Any ideas?
>>
>>
>>
>> Tom Martino
>>
>>
>>
>>
>> -------------------------------------------------------------------------------- 
>>
>>
>>
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>>
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>
>
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