[NSRCA-discussion] Full Flying Stab

[J N Hiller]

Yes Ron I'm aware of pivoting on the aerodynamic center. I had thoughts of
loading two servos against each other to eliminate backlash if it was a
problem. Maybe I need to breadboard it and see what I like and don't like.
Jim

-----Original Message-----
From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org]On Behalf Of Ron Van Putte
Sent: Friday, August 14, 2009 10:06 AM
To: General pattern discussion
Subject: Re: [NSRCA-discussion] Full Flying Stab

I was faced with this problem many years ago when I build a canard
(tail-first) airplane with a full flying stab.  I solved it by
pivoting the stab at the aerodynamic center of the stab, to minimize/
eliminate moment change with deflection of the stab.  Then I spring
loaded the stab with a soft helical spring in one direction, so the
stab, in effect, had no "backlash".

Ron VP

On Aug 14, 2009, at 12:00 PM, J N Hiller wrote:

> I'm working on a new pattern design and would like some input on the
> feasibility of using a full flying stab. Servos are tighter and
> stronger now
> and the travel curve is more adjustable. Would it still be too
> loose and
> hunt or do they just not work?
> What do you think?
> Jim Hiller
>
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